Denmark

Description
Limitations
Actions
Workflows
Documents

Register suppliers

Supplier registration guide ›

Issue invoices

Issuing guide ›

Receive invoices

Receiving guide ›


Developer	Invopop
Category	Government
Scope	B2B, B2G
System	NemHandel (Erhvervsstyrelsen)
Country	Denmark

NemHandel is Denmark’s national e-invoicing network, run by the Danish Business Authority (Erhvervsstyrelsen). Denmark was the first country in Europe to mandate B2G e-invoicing, back in 2005: public authorities only accept electronic invoices, delivered over NemHandel or Peppol, and the Digital Bookkeeping Act now requires nearly every Danish business to be able to send and receive e-invoices as well.Documents travel on NemHandel as OIOUBL 2.1, Denmark’s national UBL dialect. This app owns the full journey in both directions: it converts GOBL invoices and credit notes to OIOUBL, validates them against the official schematron before anything is sent, delivers them over the network, and imports the documents your parties receive back into GOBL.Invopop has partnered with eCourier, a Danish NemHandel access point, to transmit documents and onboard suppliers onto the network. Registering a supplier includes a signing step: the supplier’s representative signs an authorisation agreement through a hosted wizard (or your own UI over the API), and the app completes the network registration once it’s signed.

Key features

Workflow automation: Register parties, issue invoices, and import received ones as steps in your workflows.
OIOUBL 2.1 both ways: GOBL → OIOUBL conversion for sending and OIOUBL → GOBL for received documents, including embedded attachments.
Schematron validation up front: Every generated document is validated against the official OIOUBL schematron (v1.17) before it leaves the platform.
Delivery confirmation: The send step waits until the network confirms delivery — submission alone doesn’t complete the job, and duplicates are never resubmitted.
Hosted supplier onboarding: The authorisation agreement is signed through a hosted wizard, with API endpoints for integrators building their own onboarding UI.
Push reception: Inbound documents are delivered by webhook the moment they arrive and handed to your import workflow.

Check out the guides below to get started:

Supplier registration · Issuing invoices · Receiving invoices

FAQ

Invoicing questions

What documents can I send over NemHandel with the Denmark app?

Invoices and credit notes, as OIOUBL 2.1 documents. Declare the dk-oioubl-v2 addon in $addons on the GOBL invoice: it layers the OIOUBL rules on top of the European EN 16931 baseline and rejects documents that would fail on the network before anything is sent. Reminders and invoice responses (OIOUBL ApplicationResponse) are not supported yet — they are planned for a follow-up release.

How do I know an invoice was actually delivered?

The send step doesn’t report success on submission — it submits the OIOUBL document and then waits until the network confirms delivery. The job stays queued, re-checking the document’s status when eCourier reports a change (and every few minutes on its own), and only completes when the document is delivered. If delivery fails, the job fails and your workflow’s rescue steps run.

Can I issue a VAT-exempt invoice?

Not as “exempt”. OIOUBL’s tax category codelist supports standard-rated, zero-rated, and reverse-charge VAT, but has no exempt category on the wire. The dk-oioubl-v2 addon rejects an exempt VAT key up front rather than silently relabelling it — state the supply as zero-rated instead.

What happens if I run the send workflow twice on the same invoice?

Nothing bad. A later run that finds the entry already delivered skips with a Duplicated Invoice result instead of resubmitting, so the receiver never gets the document twice.

Can I generate the OIOUBL file without sending it?

Yes. The convert step works on its own: it converts the GOBL invoice to OIOUBL 2.1, validates it against the official schematron, and stores the XML as an attachment on the silo entry under the oioubl file key. A workflow that only converts lets you inspect or download the file without submitting anything to the network.

Registering supplier questions

Why does registration involve signing an agreement?

NemHandel registration runs through Invopop’s partner eCourier, which requires a signed authorisation agreement from the supplier before it can create the supplier’s NemHandel participant. That’s why the registration workflow has three steps: publish the agreement for signing, wait until the supplier’s representative signs it, and only then register the participant.

Who signs the agreement, and how?

A representative of the supplier — typically a director or other authorized signatory. The registration workflow publishes a public signing link on the party’s silo entry; share it with the representative and they complete a short hosted wizard: confirm their details, review the agreement, and sign. If the party’s people list carries a person with a name and role, the wizard prefills them as the signer. Integrators building their own onboarding UI can drive the same flow over the API.

What identifier is the party registered under?

Its NemHandel participant identifier: the party’s first GOBL endpoints entry if it has one (for example a GLN: number), otherwise the DK:CVR identifier derived from the party’s Danish tax ID. NemHandel uses symbolic schemes (DK:CVR, DK:SE, GLN) rather than Peppol’s numeric ISO 6523 codes.

Why was my registration refused with “registered on NemHandel by a different workspace”?

Each NemHandel participant can only be held by one Invopop workspace. If another workspace has already registered the same identifier, registration is refused — which workspace holds it is not disclosed. Re-running registration for a party your own workspace already registered is fine: it’s treated as a retry, not an error.

Can I unregister a party?

Yes. Run the unregister workflow on the party’s silo entry: it releases the NemHandel registration, removing the participant and the routing that delivered inbound documents to your workspace. To send or receive on behalf of that party again, you’ll need to register it again.

Receiving questions

How do received invoices arrive?

By push, not polling. When a document addressed to one of your registered parties lands on the network, eCourier notifies Invopop by webhook, and the Denmark app starts your configured import workflow for it. The import step fetches the document, parses the OIOUBL, converts it to a GOBL invoice, and creates a silo entry carrying the GOBL document, the original XML, and any binary attachments embedded in it.

Which workflow processes inbound documents?

The one you select in the Denmark app’s configuration (Configuration → Apps → Denmark → Configure). Every inbound document is handed to that workflow, so create it before registering any party — its first step must be the app’s import action, and everything after it is yours to shape: setting a state, filing into a folder, or any other processing.

What happens to document types Invopop cannot process?

The current release imports invoices and credit notes. If something else arrives — an OIOUBL ApplicationResponse or a Reminder — the app acknowledges it on the network once and fails the import job with a message naming the document type that arrived and the participant it was addressed to, so it’s visible rather than silently retried forever. Support for these document types is planned for a follow-up release.

Can a document be delivered twice?

The network redelivers its webhook until it is acknowledged, but the import step only acknowledges a document after it has been fully processed — and a document that was already imported isn’t imported again. A failure partway through leaves the document ready to retry rather than lost.

Capability	Status	Notes
Party registration	Available	Includes the hosted agreement-signing wizard
Invoice delivery	Available	OIOUBL 2.1 invoices and credit notes, delivery-confirmed
Invoice reception	Available	Webhook push into your import workflow
Party deregistration	Available	Releases the participant and its inbound routing
Reminders	In development	OIOUBL Reminder documents are planned for a follow-up release
Invoice responses	In development	The OIOUBL ApplicationResponse leg is planned for a follow-up release

Generate OIOUBL

Convert a GOBL invoice or credit note to OIOUBL 2.1, validate it against the official schematron, and attach the XML to the entry under the oioubl file key.

Send to NemHandel

Submit the attached OIOUBL document to the network and queue until delivery is confirmed. Requires a preceding Generate OIOUBL step.

Registration

Sign NemHandel Agreement

Publish the authorisation agreement for the supplier’s representative to sign, adding a public signing link to the party’s entry.

Wait for NemHandel Agreement

Pause the workflow until the agreement is signed, then upload it to the network partner.

Register on NemHandel

Create the party’s NemHandel participant and record the routing that delivers its inbound documents to your workspace.

Unregister from NemHandel

Release the registration, removing the participant and its inbound routing.

Reception

Load from NemHandel

Fetch one received document, parse the OIOUBL, and create a GOBL silo entry with the original XML and its embedded attachments.

Invoice workflows

Send NemHandel invoice

Add to my workspace →

Example Send NemHandel invoice workflow

{
    "name": "Send NemHandel invoice",
    "description": "Convert an invoice to OIOUBL and send it over the NemHandel network",
    "schema": "bill/invoice",
    "steps": [
        {
            "id": "e3ad87b2-88d1-11f1-8000-920007eb4d91",
            "name": "Set State",
            "provider": "silo.state",
            "summary": "Set state to `processing`{.state .processing}",
            "config": {
                "state": "processing"
            }
        },
        {
            "id": "e3add26c-88d1-11f1-8000-920007eb4d91",
            "name": "Add Sequential Code",
            "provider": "sequence.enumerate",
            "summary": "Dynamic · NemHandel · 000001",
            "config": {
                "name": "NemHandel",
                "padding": 6,
                "start": 1
            }
        },
        {
            "id": "e3ae403a-88d1-11f1-8000-920007eb4d91",
            "name": "Sign Envelope",
            "provider": "silo.close"
        },
        {
            "id": "e3afc3a6-88d1-11f1-8000-920007eb4d91",
            "name": "Generate OIOUBL",
            "provider": "gov-dk.convert",
            "summary": "OIOUBL 2.1 Invoice/CreditNote"
        },
        {
            "id": "e3aea606-88d1-11f1-8000-920007eb4d91",
            "name": "Send to NemHandel",
            "provider": "gov-dk.send",
            "summary": "Submits and queues until eCourier confirms delivery"
        },
        {
            "id": "e3af29be-88d1-11f1-8000-920007eb4d91",
            "name": "Set State",
            "provider": "silo.state",
            "summary": "Set state to `sent`{.state .sent}",
            "config": {
                "state": "sent"
            }
        }
    ],
    "rescue": [
        {
            "id": "e3af4e58-88d1-11f1-8000-920007eb4d91",
            "name": "Set State",
            "provider": "silo.state",
            "summary": "Set state to `error`{.state .error}",
            "config": {
                "state": "error"
            }
        }
    ]
}

Party workflows

Add to my workspace →

Example Register on NemHandel workflow

{
    "name": "Register on NemHandel",
    "description": "",
    "schema": "org/party",
    "steps": [
        {
            "id": "c3e2b400-4f6a-11f1-9c2d-0242ac120012",
            "name": "Set State",
            "provider": "silo.state",
            "summary": "Set state to `processing`{.state .processing}",
            "config": {
                "state": "processing"
            }
        },
        {
            "id": "e3af78f6-88d1-11f1-8000-920007eb4d91",
            "name": "Sign NemHandel Agreement",
            "provider": "gov-dk.sign"
        },
        {
            "id": "e3af9d5e-88d1-11f1-8000-920007eb4d91",
            "name": "Wait for NemHandel Agreement",
            "provider": "gov-dk.wait.approval"
        },
        {
            "id": "c3e2b401-4f6a-11f1-9c2d-0242ac120012",
            "name": "Register on NemHandel",
            "provider": "gov-dk.register"
        },
        {
            "id": "c3e2b402-4f6a-11f1-9c2d-0242ac120012",
            "name": "Set State",
            "provider": "silo.state",
            "summary": "Set state to `registered`{.state .registered}",
            "config": {
                "state": "registered"
            }
        }
    ],
    "rescue": []
}

Unregister from NemHandel

Add to my workspace →

Example Unregister from NemHandel workflow

{
    "name": "Unregister from NemHandel",
    "description": "Release a party's NemHandel registration so it no longer sends or receives",
    "schema": "org/party",
    "steps": [
        {
            "id": "b0ebea5e-8907-11f1-8000-920007eb4d91",
            "name": "Set State",
            "provider": "silo.state",
            "summary": "Set state to `processing`{.state .processing}",
            "config": {
                "state": "processing"
            }
        },
        {
            "id": "b0ec50f2-8907-11f1-8000-920007eb4d91",
            "name": "Unregister from NemHandel",
            "provider": "gov-dk.unregister"
        },
        {
            "id": "b0ecc1fe-8907-11f1-8000-920007eb4d91",
            "name": "Set State",
            "provider": "silo.state",
            "summary": "Set state to `void`{.state .void}",
            "config": {
                "state": "void"
            }
        }
    ],
    "rescue": [
        {
            "id": "b0ed13f2-8907-11f1-8000-920007eb4d91",
            "name": "Set State",
            "provider": "silo.state",
            "summary": "Set state to `error`{.state .error}",
            "config": {
                "state": "error"
            }
        }
    ]
}

Reception workflows

Import NemHandel invoice

Add to my workspace →

Example Import NemHandel invoice workflow

{
    "name": "Import NemHandel invoice",
    "description": "Import a received OIOUBL document delivered via NemHandel",
    "schema": "bill/invoice",
    "steps": [
        {
            "id": "a1c0f2df-4f6a-11f1-9c2d-0242ac120010",
            "name": "Load from NemHandel",
            "provider": "gov-dk.import",
            "summary": "Fetches, parses OIOUBL, and converts to GOBL in one step"
        },
        {
            "id": "a1c0f2e2-4f6a-11f1-9c2d-0242ac120010",
            "name": "Set State",
            "provider": "silo.state",
            "summary": "Set state to `received`{.state .received}",
            "config": {
                "state": "received"
            }
        }
    ],
    "rescue": [
        {
            "id": "a1c0f2e3-4f6a-11f1-9c2d-0242ac120010",
            "name": "Set State",
            "provider": "silo.state",
            "summary": "Set state to `error`{.state .error}",
            "config": {
                "state": "error"
            }
        }
    ]
}

Denmark supplier

A Danish company with its CVR number as the tax ID and a contact person with a name and role — the prefilled signer for the registration agreement. The DK:CVR endpoint is derived from the tax ID automatically.

Denmark supplier example

{
    "$schema": "https://gobl.org/draft-0/org/party",
    "name": "Nordlys Software ApS",
    "tax_id": {
        "country": "DK",
        "code": "16356700"
    },
    "people": [
        {
            "name": {
                "given": "Mette",
                "surname": "Kristensen"
            },
            "role": "Director"
        }
    ],
    "addresses": [
        {
            "num": "24",
            "street": "Vesterbrogade",
            "locality": "København V",
            "code": "1620",
            "country": "DK"
        }
    ],
    "emails": [
        {
            "addr": "faktura@nordlys.dk"
        }
    ]
}

Denmark customer

A Danish public institution identified by its EAN/GLN number as an endpoint (GLN:…), the identifier public entities carry in the NemHandelsregisteret. Business customers can carry just their CVR tax ID instead.

Denmark customer example

{
    "$schema": "https://gobl.org/draft-0/org/party",
    "name": "Den Lille Skole",
    "endpoints": [
        {
            "uri": "GLN:5798009883735"
        }
    ],
    "addresses": [
        {
            "num": "10",
            "street": "Fredericiavej",
            "locality": "Helsingør",
            "code": "3000",
            "country": "DK"
        }
    ],
    "emails": [
        {
            "addr": "faktura@dls.dk"
        }
    ]
}

Example B2G invoice

In this example, we’re invoicing a Danish public institution, the segment where e-invoicing is mandatory.Notice:

the $addons field is set to dk-oioubl-v2, which layers the OIOUBL 2.1 rules on top of the European EN 16931 baseline,
the customer carries its EAN/GLN number as an endpoint (GLN:5798009883735) — this is how public entities are identified in the NemHandelsregisteret,
the supplier declares no endpoint: the addon derives its DK:CVR endpoint automatically from the Danish tax ID,
the ordering.purchases block carries the order reference the receiving institution asked for,
the payment instructions use a SEPA credit transfer with an IBAN, and,
there are no calculations in some fields; these will be made automatically when uploading.

{
  "$schema": "https://gobl.org/draft-0/bill/invoice",
  "$addons": [
    "dk-oioubl-v2"
  ],
  "type": "standard",
  "series": "SAMPLE",
  "code": "0042",
  "issue_date": "2026-08-01",
  "currency": "DKK",
  "supplier": {
    "name": "Nordlys Software ApS",
    "tax_id": {
      "country": "DK",
      "code": "16356700"
    },
    "people": [
      {
        "name": {
          "given": "Mette",
          "surname": "Kristensen"
        },
        "role": "Director"
      }
    ],
    "addresses": [
      {
        "num": "24",
        "street": "Vesterbrogade",
        "locality": "København V",
        "code": "1620",
        "country": "DK"
      }
    ],
    "emails": [
      {
        "addr": "faktura@nordlys.dk"
      }
    ]
  },
  "customer": {
    "name": "Den Lille Skole",
    "endpoints": [
      {
        "uri": "GLN:5798009883735"
      }
    ],
    "addresses": [
      {
        "num": "10",
        "street": "Fredericiavej",
        "locality": "Helsingør",
        "code": "3000",
        "country": "DK"
      }
    ]
  },
  "ordering": {
    "purchases": [
      {
        "code": "5002701"
      }
    ]
  },
  "lines": [
    {
      "quantity": 20,
      "item": {
        "name": "Software licence",
        "price": "150.00",
        "unit": "item"
      },
      "taxes": [
        {
          "cat": "VAT",
          "rate": "standard"
        }
      ]
    }
  ],
  "payment": {
    "terms": {
      "due_dates": [
        {
          "date": "2026-08-31",
          "percent": "100%"
        }
      ]
    },
    "instructions": {
      "key": "credit-transfer+sepa",
      "credit_transfer": [
        {
          "iban": "DK5000400440116243"
        }
      ],
      "ext": {
        "untdid-payment-means": "58"
      }
    }
  }
}```

{
	"$schema": "https://gobl.org/draft-0/bill/invoice",
	"$regime": "DK",
	"$addons": [
		"eu-en16931-v2017",
		"dk-oioubl-v2"
	],
	"type": "standard",
	"series": "SAMPLE",
	"code": "0042",
	"issue_date": "2026-08-01",
	"currency": "DKK",
	"tax": {
		"rounding": "currency",
		"ext": {
			"untdid-document-type": "380"
		}
	},
	"supplier": {
		"name": "Nordlys Software ApS",
		"tax_id": {
			"country": "DK",
			"code": "16356700"
		},
		"identities": [
			{
				"scope": "legal",
				"code": "16356700"
			}
		],
		"people": [
			{
				"name": {
					"given": "Mette",
					"surname": "Kristensen"
				},
				"role": "Director"
			}
		],
		"endpoints": [
			{
				"uri": "DK:CVR:16356700"
			}
		],
		"addresses": [
			{
				"num": "24",
				"street": "Vesterbrogade",
				"locality": "København V",
				"code": "1620",
				"country": "DK"
			}
		],
		"emails": [
			{
				"addr": "faktura@nordlys.dk"
			}
		]
	},
	"customer": {
		"name": "Den Lille Skole",
		"endpoints": [
			{
				"uri": "GLN:5798009883735"
			}
		],
		"addresses": [
			{
				"num": "10",
				"street": "Fredericiavej",
				"locality": "Helsingør",
				"code": "3000",
				"country": "DK"
			}
		]
	},
	"lines": [
		{
			"i": 1,
			"quantity": "20",
			"item": {
				"name": "Software licence",
				"price": "150.00",
				"unit": "item"
			},
			"sum": "3000.00",
			"taxes": [
				{
					"cat": "VAT",
					"key": "standard",
					"rate": "general",
					"percent": "25.0%"
				}
			],
			"total": "3000.00"
		}
	],
	"ordering": {
		"purchases": [
			{
				"code": "5002701"
			}
		]
	},
	"payment": {
		"terms": {
			"due_dates": [
				{
					"date": "2026-08-31",
					"amount": "3750.00",
					"percent": "100%"
				}
			]
		},
		"instructions": {
			"key": "credit-transfer+sepa",
			"credit_transfer": [
				{
					"iban": "DK5000400440116243"
				}
			],
			"ext": {
				"untdid-payment-means": "58"
			}
		}
	},
	"totals": {
		"sum": "3000.00",
		"total": "3000.00",
		"taxes": {
			"categories": [
				{
					"code": "VAT",
					"rates": [
						{
							"key": "standard",
							"base": "3000.00",
							"percent": "25.0%",
							"amount": "750.00"
						}
					],
					"amount": "750.00"
				}
			],
			"sum": "750.00"
		},
		"tax": "750.00",
		"total_with_tax": "3750.00",
		"payable": "3750.00"
	}
}

Example B2B invoice

In this example, we’re issuing a B2B invoice from a Danish supplier to another Danish business.Notice:

both parties are identified by their CVR number as the GOBL tax_id.code; the addon derives each party’s DK:CVR endpoint from it,
the payment instructions describe a Danish domestic bank transfer (UNTDID payment means 42): the account number plus the four-digit bank registration (clearing) code the OIOUBL rules require, and,
there are no calculations in some fields; these will be made automatically when uploading.

{
  "$schema": "https://gobl.org/draft-0/bill/invoice",
  "$addons": ["dk-oioubl-v2"],
  "type": "standard",
  "series": "SAMPLE",
  "code": "0043",
  "issue_date": "2026-08-01",
  "currency": "DKK",
  "supplier": {
    "name": "Nordlys Software ApS",
    "tax_id": {
      "country": "DK",
      "code": "16356700"
    },
    "addresses": [
      {
        "num": "24",
        "street": "Vesterbrogade",
        "locality": "København V",
        "code": "1620",
        "country": "DK"
      }
    ],
    "emails": [
      {
        "addr": "faktura@nordlys.dk"
      }
    ]
  },
  "customer": {
    "name": "Havnens Byggemarked A/S",
    "tax_id": {
      "country": "DK",
      "code": "12345674"
    },
    "addresses": [
      {
        "num": "3",
        "street": "Havnegade",
        "locality": "Aarhus C",
        "code": "8000",
        "country": "DK"
      }
    ]
  },
  "lines": [
    {
      "quantity": 10,
      "item": {
        "name": "Consulting services",
        "price": "800.00",
        "unit": "h"
      },
      "taxes": [
        {
          "cat": "VAT",
          "rate": "standard"
        }
      ]
    }
  ],
  "payment": {
    "terms": {
      "due_dates": [
        {
          "date": "2026-08-31",
          "percent": "100%"
        }
      ]
    },
    "instructions": {
      "key": "other",
      "ext": {
        "untdid-payment-means": "42"
      },
      "credit_transfer": [
        {
          "number": "1234567890",
          "clearing": "1234"
        }
      ]
    }
  }
}

{
	"$schema": "https://gobl.org/draft-0/bill/invoice",
	"$regime": "DK",
	"$addons": [
		"eu-en16931-v2017",
		"dk-oioubl-v2"
	],
	"type": "standard",
	"series": "SAMPLE",
	"code": "0043",
	"issue_date": "2026-08-01",
	"currency": "DKK",
	"tax": {
		"rounding": "currency",
		"ext": {
			"untdid-document-type": "380"
		}
	},
	"supplier": {
		"name": "Nordlys Software ApS",
		"tax_id": {
			"country": "DK",
			"code": "16356700"
		},
		"identities": [
			{
				"scope": "legal",
				"code": "16356700"
			}
		],
		"endpoints": [
			{
				"uri": "DK:CVR:16356700"
			}
		],
		"addresses": [
			{
				"num": "24",
				"street": "Vesterbrogade",
				"locality": "København V",
				"code": "1620",
				"country": "DK"
			}
		],
		"emails": [
			{
				"addr": "faktura@nordlys.dk"
			}
		]
	},
	"customer": {
		"name": "Havnens Byggemarked A/S",
		"tax_id": {
			"country": "DK",
			"code": "12345674"
		},
		"identities": [
			{
				"scope": "legal",
				"code": "12345674"
			}
		],
		"endpoints": [
			{
				"uri": "DK:CVR:12345674"
			}
		],
		"addresses": [
			{
				"num": "3",
				"street": "Havnegade",
				"locality": "Aarhus C",
				"code": "8000",
				"country": "DK"
			}
		]
	},
	"lines": [
		{
			"i": 1,
			"quantity": "10",
			"item": {
				"name": "Consulting services",
				"price": "800.00",
				"unit": "h"
			},
			"sum": "8000.00",
			"taxes": [
				{
					"cat": "VAT",
					"key": "standard",
					"rate": "general",
					"percent": "25.0%"
				}
			],
			"total": "8000.00"
		}
	],
	"payment": {
		"terms": {
			"due_dates": [
				{
					"date": "2026-08-31",
					"amount": "10000.00",
					"percent": "100%"
				}
			]
		},
		"instructions": {
			"key": "other",
			"credit_transfer": [
				{
					"number": "1234567890",
					"clearing": "1234"
				}
			],
			"ext": {
				"untdid-payment-means": "42"
			}
		}
	},
	"totals": {
		"sum": "8000.00",
		"total": "8000.00",
		"taxes": {
			"categories": [
				{
					"code": "VAT",
					"rates": [
						{
							"key": "standard",
							"base": "8000.00",
							"percent": "25.0%",
							"amount": "2000.00"
						}
					],
					"amount": "2000.00"
				}
			],
			"sum": "2000.00"
		},
		"tax": "2000.00",
		"total_with_tax": "10000.00",
		"payable": "10000.00"
	}
}

Example zero-rated invoice

In this example, we’re issuing a domestic invoice for a zero-rated supply — newspapers, one of the few zero-rated categories under Momslovens §34.Notice:

the line’s tax uses the zero VAT key: the supply is taxable at 0% with input VAT recovery, unlike an exempt supply,
OIOUBL has no exempt category on the wire, so genuinely exempt supplies (healthcare, education, financial services) cannot be invoiced through NemHandel as “exempt” — the addon rejects the exempt key and zero-rated is the closest the format supports, and,
everything else works exactly like the standard B2B invoice.

{
  "$schema": "https://gobl.org/draft-0/bill/invoice",
  "$addons": [
    "dk-oioubl-v2"
  ],
  "type": "standard",
  "series": "SAMPLE",
  "code": "0045",
  "issue_date": "2026-08-01",
  "currency": "DKK",
  "supplier": {
    "name": "Nordlys Software ApS",
    "tax_id": {
      "country": "DK",
      "code": "16356700"
    },
    "addresses": [
      {
        "num": "24",
        "street": "Vesterbrogade",
        "locality": "København V",
        "code": "1620",
        "country": "DK"
      }
    ],
    "emails": [
      {
        "addr": "faktura@nordlys.dk"
      }
    ]
  },
  "customer": {
    "name": "Havnens Byggemarked A/S",
    "tax_id": {
      "country": "DK",
      "code": "12345674"
    },
    "addresses": [
      {
        "num": "3",
        "street": "Havnegade",
        "locality": "Aarhus C",
        "code": "8000",
        "country": "DK"
      }
    ]
  },
  "lines": [
    {
      "quantity": 250,
      "item": {
        "name": "Morgenavisen daily newspaper",
        "price": "12.00",
        "unit": "item"
      },
      "taxes": [
        {
          "cat": "VAT",
          "key": "zero"
        }
      ]
    }
  ],
  "payment": {
    "terms": {
      "due_dates": [
        {
          "date": "2026-08-31",
          "percent": "100%"
        }
      ]
    },
    "instructions": {
      "key": "credit-transfer+sepa",
      "credit_transfer": [
        {
          "iban": "DK5000400440116243"
        }
      ]
    }
  }
}```

{
	"$schema": "https://gobl.org/draft-0/bill/invoice",
	"$regime": "DK",
	"$addons": [
		"eu-en16931-v2017",
		"dk-oioubl-v2"
	],
	"type": "standard",
	"series": "SAMPLE",
	"code": "0045",
	"issue_date": "2026-08-01",
	"currency": "DKK",
	"tax": {
		"rounding": "currency",
		"ext": {
			"untdid-document-type": "380"
		}
	},
	"supplier": {
		"name": "Nordlys Software ApS",
		"tax_id": {
			"country": "DK",
			"code": "16356700"
		},
		"identities": [
			{
				"scope": "legal",
				"code": "16356700"
			}
		],
		"endpoints": [
			{
				"uri": "DK:CVR:16356700"
			}
		],
		"addresses": [
			{
				"num": "24",
				"street": "Vesterbrogade",
				"locality": "København V",
				"code": "1620",
				"country": "DK"
			}
		],
		"emails": [
			{
				"addr": "faktura@nordlys.dk"
			}
		]
	},
	"customer": {
		"name": "Havnens Byggemarked A/S",
		"tax_id": {
			"country": "DK",
			"code": "12345674"
		},
		"identities": [
			{
				"scope": "legal",
				"code": "12345674"
			}
		],
		"endpoints": [
			{
				"uri": "DK:CVR:12345674"
			}
		],
		"addresses": [
			{
				"num": "3",
				"street": "Havnegade",
				"locality": "Aarhus C",
				"code": "8000",
				"country": "DK"
			}
		]
	},
	"lines": [
		{
			"i": 1,
			"quantity": "250",
			"item": {
				"name": "Morgenavisen daily newspaper",
				"price": "12.00",
				"unit": "item"
			},
			"sum": "3000.00",
			"taxes": [
				{
					"cat": "VAT",
					"key": "zero",
					"percent": "0%"
				}
			],
			"total": "3000.00"
		}
	],
	"payment": {
		"terms": {
			"due_dates": [
				{
					"date": "2026-08-31",
					"amount": "3000.00",
					"percent": "100%"
				}
			]
		},
		"instructions": {
			"key": "credit-transfer+sepa",
			"credit_transfer": [
				{
					"iban": "DK5000400440116243"
				}
			],
			"ext": {
				"untdid-payment-means": "58"
			}
		}
	},
	"totals": {
		"sum": "3000.00",
		"total": "3000.00",
		"taxes": {
			"categories": [
				{
					"code": "VAT",
					"rates": [
						{
							"key": "zero",
							"base": "3000.00",
							"percent": "0%",
							"amount": "0.00"
						}
					],
					"amount": "0.00"
				}
			],
			"sum": "0.00"
		},
		"tax": "0.00",
		"total_with_tax": "3000.00",
		"payable": "3000.00"
	}
}

Example reverse charge invoice

In this example, we’re issuing a domestic reverse charge invoice for copper scrap — one of the supplies (along with certain metals and electronics) where Denmark shifts the VAT liability to the buyer.Notice:

the line’s tax uses the reverse-charge VAT key, so no VAT is charged and the customer accounts for it instead,
the cef-vatex extension carries the exemption reason code VATEX-EU-AE (reverse charge), which OIOUBL maps to its reverse-charge tax category, and,
both parties are Danish businesses identified by their CVR numbers.

{
  "$schema": "https://gobl.org/draft-0/bill/invoice",
  "$addons": [
    "dk-oioubl-v2"
  ],
  "type": "standard",
  "series": "SAMPLE",
  "code": "0046",
  "issue_date": "2026-08-01",
  "currency": "DKK",
  "supplier": {
    "name": "Nordlys Software ApS",
    "tax_id": {
      "country": "DK",
      "code": "16356700"
    },
    "addresses": [
      {
        "num": "24",
        "street": "Vesterbrogade",
        "locality": "København V",
        "code": "1620",
        "country": "DK"
      }
    ],
    "emails": [
      {
        "addr": "faktura@nordlys.dk"
      }
    ]
  },
  "customer": {
    "name": "Havnens Byggemarked A/S",
    "tax_id": {
      "country": "DK",
      "code": "12345674"
    },
    "addresses": [
      {
        "num": "3",
        "street": "Havnegade",
        "locality": "Aarhus C",
        "code": "8000",
        "country": "DK"
      }
    ]
  },
  "lines": [
    {
      "quantity": 500,
      "item": {
        "name": "Copper scrap",
        "price": "45.00",
        "unit": "kg"
      },
      "taxes": [
        {
          "cat": "VAT",
          "key": "reverse-charge",
          "ext": {
            "cef-vatex": "VATEX-EU-AE"
          }
        }
      ]
    }
  ],
  "payment": {
    "terms": {
      "due_dates": [
        {
          "date": "2026-08-31",
          "percent": "100%"
        }
      ]
    },
    "instructions": {
      "key": "credit-transfer+sepa",
      "credit_transfer": [
        {
          "iban": "DK5000400440116243"
        }
      ]
    }
  }
}```

{
	"$schema": "https://gobl.org/draft-0/bill/invoice",
	"$regime": "DK",
	"$addons": [
		"eu-en16931-v2017",
		"dk-oioubl-v2"
	],
	"type": "standard",
	"series": "SAMPLE",
	"code": "0046",
	"issue_date": "2026-08-01",
	"currency": "DKK",
	"tax": {
		"rounding": "currency",
		"ext": {
			"untdid-document-type": "380"
		}
	},
	"supplier": {
		"name": "Nordlys Software ApS",
		"tax_id": {
			"country": "DK",
			"code": "16356700"
		},
		"identities": [
			{
				"scope": "legal",
				"code": "16356700"
			}
		],
		"endpoints": [
			{
				"uri": "DK:CVR:16356700"
			}
		],
		"addresses": [
			{
				"num": "24",
				"street": "Vesterbrogade",
				"locality": "København V",
				"code": "1620",
				"country": "DK"
			}
		],
		"emails": [
			{
				"addr": "faktura@nordlys.dk"
			}
		]
	},
	"customer": {
		"name": "Havnens Byggemarked A/S",
		"tax_id": {
			"country": "DK",
			"code": "12345674"
		},
		"identities": [
			{
				"scope": "legal",
				"code": "12345674"
			}
		],
		"endpoints": [
			{
				"uri": "DK:CVR:12345674"
			}
		],
		"addresses": [
			{
				"num": "3",
				"street": "Havnegade",
				"locality": "Aarhus C",
				"code": "8000",
				"country": "DK"
			}
		]
	},
	"lines": [
		{
			"i": 1,
			"quantity": "500",
			"item": {
				"name": "Copper scrap",
				"price": "45.00",
				"unit": "kg"
			},
			"sum": "22500.00",
			"taxes": [
				{
					"cat": "VAT",
					"key": "reverse-charge",
					"ext": {
						"cef-vatex": "VATEX-EU-AE"
					}
				}
			],
			"total": "22500.00"
		}
	],
	"payment": {
		"terms": {
			"due_dates": [
				{
					"date": "2026-08-31",
					"amount": "22500.00",
					"percent": "100%"
				}
			]
		},
		"instructions": {
			"key": "credit-transfer+sepa",
			"credit_transfer": [
				{
					"iban": "DK5000400440116243"
				}
			],
			"ext": {
				"untdid-payment-means": "58"
			}
		}
	},
	"totals": {
		"sum": "22500.00",
		"total": "22500.00",
		"taxes": {
			"categories": [
				{
					"code": "VAT",
					"rates": [
						{
							"key": "reverse-charge",
							"ext": {
								"cef-vatex": "VATEX-EU-AE"
							},
							"base": "22500.00",
							"amount": "0.00"
						}
					],
					"amount": "0.00"
				}
			],
			"sum": "0.00"
		},
		"tax": "0.00",
		"total_with_tax": "22500.00",
		"payable": "22500.00"
	}
}

Example intra-community invoice

In this example, we’re invoicing a VAT-registered business in another EU member state — an intra-Community supply of goods, zero-rated under Momslovens §34.Notice:

the line’s tax uses the intra-community VAT key with the VATEX-EU-IC exemption reason code,
the customer carries its own country’s tax ID (a German VAT number here) and a GLN endpoint so NemHandel can route the document, and,
no Danish VAT is charged; the customer self-accounts for the acquisition in their own country.

{
  "$schema": "https://gobl.org/draft-0/bill/invoice",
  "$addons": [
    "dk-oioubl-v2"
  ],
  "type": "standard",
  "series": "SAMPLE",
  "code": "0047",
  "issue_date": "2026-08-01",
  "currency": "DKK",
  "supplier": {
    "name": "Nordlys Software ApS",
    "tax_id": {
      "country": "DK",
      "code": "16356700"
    },
    "addresses": [
      {
        "num": "24",
        "street": "Vesterbrogade",
        "locality": "København V",
        "code": "1620",
        "country": "DK"
      }
    ],
    "emails": [
      {
        "addr": "faktura@nordlys.dk"
      }
    ]
  },
  "customer": {
    "name": "Rheinwerk Handel GmbH",
    "tax_id": {
      "country": "DE",
      "code": "111111125"
    },
    "endpoints": [
      {
        "uri": "GLN:4304984000008"
      }
    ],
    "addresses": [
      {
        "num": "18",
        "street": "Speditionstraße",
        "locality": "Düsseldorf",
        "code": "40221",
        "country": "DE"
      }
    ]
  },
  "lines": [
    {
      "quantity": 40,
      "item": {
        "name": "Industrial valves",
        "price": "320.00",
        "unit": "item"
      },
      "taxes": [
        {
          "cat": "VAT",
          "key": "intra-community",
          "ext": {
            "cef-vatex": "VATEX-EU-IC"
          }
        }
      ]
    }
  ],
  "payment": {
    "terms": {
      "due_dates": [
        {
          "date": "2026-08-31",
          "percent": "100%"
        }
      ]
    },
    "instructions": {
      "key": "credit-transfer+sepa",
      "credit_transfer": [
        {
          "iban": "DK5000400440116243"
        }
      ]
    }
  }
}```

{
	"$schema": "https://gobl.org/draft-0/bill/invoice",
	"$regime": "DK",
	"$addons": [
		"eu-en16931-v2017",
		"dk-oioubl-v2"
	],
	"type": "standard",
	"series": "SAMPLE",
	"code": "0047",
	"issue_date": "2026-08-01",
	"currency": "DKK",
	"tax": {
		"rounding": "currency",
		"ext": {
			"untdid-document-type": "380"
		}
	},
	"supplier": {
		"name": "Nordlys Software ApS",
		"tax_id": {
			"country": "DK",
			"code": "16356700"
		},
		"identities": [
			{
				"scope": "legal",
				"code": "16356700"
			}
		],
		"endpoints": [
			{
				"uri": "DK:CVR:16356700"
			}
		],
		"addresses": [
			{
				"num": "24",
				"street": "Vesterbrogade",
				"locality": "København V",
				"code": "1620",
				"country": "DK"
			}
		],
		"emails": [
			{
				"addr": "faktura@nordlys.dk"
			}
		]
	},
	"customer": {
		"name": "Rheinwerk Handel GmbH",
		"tax_id": {
			"country": "DE",
			"code": "111111125"
		},
		"endpoints": [
			{
				"uri": "GLN:4304984000008"
			}
		],
		"addresses": [
			{
				"num": "18",
				"street": "Speditionstraße",
				"locality": "Düsseldorf",
				"code": "40221",
				"country": "DE"
			}
		]
	},
	"lines": [
		{
			"i": 1,
			"quantity": "40",
			"item": {
				"name": "Industrial valves",
				"price": "320.00",
				"unit": "item"
			},
			"sum": "12800.00",
			"taxes": [
				{
					"cat": "VAT",
					"key": "intra-community",
					"ext": {
						"cef-vatex": "VATEX-EU-IC"
					}
				}
			],
			"total": "12800.00"
		}
	],
	"payment": {
		"terms": {
			"due_dates": [
				{
					"date": "2026-08-31",
					"amount": "12800.00",
					"percent": "100%"
				}
			]
		},
		"instructions": {
			"key": "credit-transfer+sepa",
			"credit_transfer": [
				{
					"iban": "DK5000400440116243"
				}
			],
			"ext": {
				"untdid-payment-means": "58"
			}
		}
	},
	"totals": {
		"sum": "12800.00",
		"total": "12800.00",
		"taxes": {
			"categories": [
				{
					"code": "VAT",
					"rates": [
						{
							"key": "intra-community",
							"ext": {
								"cef-vatex": "VATEX-EU-IC"
							},
							"base": "12800.00",
							"amount": "0.00"
						}
					],
					"amount": "0.00"
				}
			],
			"sum": "0.00"
		},
		"tax": "0.00",
		"total_with_tax": "12800.00",
		"payable": "12800.00"
	}
}

Example export invoice

In this example, we’re invoicing a customer outside the EU — an export of goods, zero-rated under Momslovens §34.Notice:

the line’s tax uses the export VAT key with the VATEX-EU-G exemption reason code,
the customer is a Norwegian business with its organisation number as tax ID and a GLN endpoint for routing, and,
no Danish VAT is charged on exports outside the EU.

{
  "$schema": "https://gobl.org/draft-0/bill/invoice",
  "$addons": [
    "dk-oioubl-v2"
  ],
  "type": "standard",
  "series": "SAMPLE",
  "code": "0048",
  "issue_date": "2026-08-01",
  "currency": "DKK",
  "supplier": {
    "name": "Nordlys Software ApS",
    "tax_id": {
      "country": "DK",
      "code": "16356700"
    },
    "addresses": [
      {
        "num": "24",
        "street": "Vesterbrogade",
        "locality": "København V",
        "code": "1620",
        "country": "DK"
      }
    ],
    "emails": [
      {
        "addr": "faktura@nordlys.dk"
      }
    ]
  },
  "customer": {
    "name": "Fjellvann Utstyr AS",
    "tax_id": {
      "country": "NO",
      "code": "987654325"
    },
    "endpoints": [
      {
        "uri": "GLN:7080000000000"
      }
    ],
    "addresses": [
      {
        "num": "7",
        "street": "Storgata",
        "locality": "Oslo",
        "code": "0155",
        "country": "NO"
      }
    ]
  },
  "lines": [
    {
      "quantity": 40,
      "item": {
        "name": "Industrial valves",
        "price": "320.00",
        "unit": "item"
      },
      "taxes": [
        {
          "cat": "VAT",
          "key": "export",
          "ext": {
            "cef-vatex": "VATEX-EU-G"
          }
        }
      ]
    }
  ],
  "payment": {
    "terms": {
      "due_dates": [
        {
          "date": "2026-08-31",
          "percent": "100%"
        }
      ]
    },
    "instructions": {
      "key": "credit-transfer+sepa",
      "credit_transfer": [
        {
          "iban": "DK5000400440116243"
        }
      ]
    }
  }
}```

{
	"$schema": "https://gobl.org/draft-0/bill/invoice",
	"$regime": "DK",
	"$addons": [
		"eu-en16931-v2017",
		"dk-oioubl-v2"
	],
	"type": "standard",
	"series": "SAMPLE",
	"code": "0048",
	"issue_date": "2026-08-01",
	"currency": "DKK",
	"tax": {
		"rounding": "currency",
		"ext": {
			"untdid-document-type": "380"
		}
	},
	"supplier": {
		"name": "Nordlys Software ApS",
		"tax_id": {
			"country": "DK",
			"code": "16356700"
		},
		"identities": [
			{
				"scope": "legal",
				"code": "16356700"
			}
		],
		"endpoints": [
			{
				"uri": "DK:CVR:16356700"
			}
		],
		"addresses": [
			{
				"num": "24",
				"street": "Vesterbrogade",
				"locality": "København V",
				"code": "1620",
				"country": "DK"
			}
		],
		"emails": [
			{
				"addr": "faktura@nordlys.dk"
			}
		]
	},
	"customer": {
		"name": "Fjellvann Utstyr AS",
		"tax_id": {
			"country": "NO",
			"code": "987654325MVA"
		},
		"endpoints": [
			{
				"uri": "GLN:7080000000000"
			}
		],
		"addresses": [
			{
				"num": "7",
				"street": "Storgata",
				"locality": "Oslo",
				"code": "0155",
				"country": "NO"
			}
		]
	},
	"lines": [
		{
			"i": 1,
			"quantity": "40",
			"item": {
				"name": "Industrial valves",
				"price": "320.00",
				"unit": "item"
			},
			"sum": "12800.00",
			"taxes": [
				{
					"cat": "VAT",
					"key": "export",
					"ext": {
						"cef-vatex": "VATEX-EU-G"
					}
				}
			],
			"total": "12800.00"
		}
	],
	"payment": {
		"terms": {
			"due_dates": [
				{
					"date": "2026-08-31",
					"amount": "12800.00",
					"percent": "100%"
				}
			]
		},
		"instructions": {
			"key": "credit-transfer+sepa",
			"credit_transfer": [
				{
					"iban": "DK5000400440116243"
				}
			],
			"ext": {
				"untdid-payment-means": "58"
			}
		}
	},
	"totals": {
		"sum": "12800.00",
		"total": "12800.00",
		"taxes": {
			"categories": [
				{
					"code": "VAT",
					"rates": [
						{
							"key": "export",
							"ext": {
								"cef-vatex": "VATEX-EU-G"
							},
							"base": "12800.00",
							"amount": "0.00"
						}
					],
					"amount": "0.00"
				}
			],
			"sum": "0.00"
		},
		"tax": "0.00",
		"total_with_tax": "12800.00",
		"payable": "12800.00"
	}
}

Example credit note

In this example, we’re issuing a credit note that corrects a previously issued invoice.Notice:

the type is set to credit-note, which OIOUBL maps to its own CreditNote document (type code 381),
the preceding array references the original invoice by its series, code, and issue_date, along with a reason, and,
there are no calculations in some fields; these will be made automatically when uploading.

{
  "$schema": "https://gobl.org/draft-0/bill/invoice",
  "$addons": ["dk-oioubl-v2"],
  "type": "credit-note",
  "series": "SAMPLE",
  "code": "0044",
  "issue_date": "2026-08-10",
  "currency": "DKK",
  "preceding": [
    {
      "series": "SAMPLE",
      "code": "0043",
      "issue_date": "2026-08-01",
      "reason": "Ordered quantity reduced"
    }
  ],
  "supplier": {
    "name": "Nordlys Software ApS",
    "tax_id": {
      "country": "DK",
      "code": "16356700"
    },
    "addresses": [
      {
        "num": "24",
        "street": "Vesterbrogade",
        "locality": "København V",
        "code": "1620",
        "country": "DK"
      }
    ],
    "emails": [
      {
        "addr": "faktura@nordlys.dk"
      }
    ]
  },
  "customer": {
    "name": "Havnens Byggemarked A/S",
    "tax_id": {
      "country": "DK",
      "code": "12345674"
    },
    "addresses": [
      {
        "num": "3",
        "street": "Havnegade",
        "locality": "Aarhus C",
        "code": "8000",
        "country": "DK"
      }
    ]
  },
  "lines": [
    {
      "quantity": 2,
      "item": {
        "name": "Consulting services",
        "price": "800.00",
        "unit": "h"
      },
      "taxes": [
        {
          "cat": "VAT",
          "rate": "standard"
        }
      ]
    }
  ]
}

{
	"$schema": "https://gobl.org/draft-0/bill/invoice",
	"$regime": "DK",
	"$addons": [
		"eu-en16931-v2017",
		"dk-oioubl-v2"
	],
	"type": "credit-note",
	"series": "SAMPLE",
	"code": "0044",
	"issue_date": "2026-08-10",
	"currency": "DKK",
	"preceding": [
		{
			"issue_date": "2026-08-01",
			"series": "SAMPLE",
			"code": "0043",
			"reason": "Ordered quantity reduced"
		}
	],
	"tax": {
		"rounding": "currency",
		"ext": {
			"untdid-document-type": "381"
		}
	},
	"supplier": {
		"name": "Nordlys Software ApS",
		"tax_id": {
			"country": "DK",
			"code": "16356700"
		},
		"identities": [
			{
				"scope": "legal",
				"code": "16356700"
			}
		],
		"endpoints": [
			{
				"uri": "DK:CVR:16356700"
			}
		],
		"addresses": [
			{
				"num": "24",
				"street": "Vesterbrogade",
				"locality": "København V",
				"code": "1620",
				"country": "DK"
			}
		],
		"emails": [
			{
				"addr": "faktura@nordlys.dk"
			}
		]
	},
	"customer": {
		"name": "Havnens Byggemarked A/S",
		"tax_id": {
			"country": "DK",
			"code": "12345674"
		},
		"identities": [
			{
				"scope": "legal",
				"code": "12345674"
			}
		],
		"endpoints": [
			{
				"uri": "DK:CVR:12345674"
			}
		],
		"addresses": [
			{
				"num": "3",
				"street": "Havnegade",
				"locality": "Aarhus C",
				"code": "8000",
				"country": "DK"
			}
		]
	},
	"lines": [
		{
			"i": 1,
			"quantity": "2",
			"item": {
				"name": "Consulting services",
				"price": "800.00",
				"unit": "h"
			},
			"sum": "1600.00",
			"taxes": [
				{
					"cat": "VAT",
					"key": "standard",
					"rate": "general",
					"percent": "25.0%"
				}
			],
			"total": "1600.00"
		}
	],
	"totals": {
		"sum": "1600.00",
		"total": "1600.00",
		"taxes": {
			"categories": [
				{
					"code": "VAT",
					"rates": [
						{
							"key": "standard",
							"base": "1600.00",
							"percent": "25.0%",
							"amount": "400.00"
						}
					],
					"amount": "400.00"
				}
			],
			"sum": "400.00"
		},
		"tax": "400.00",
		"total_with_tax": "2000.00",
		"payable": "2000.00"
	}
}

Copy and paste these documents into the GOBL builder in order to preview and verify them.

🇩🇰 Invopop resources for Denmark


Compliance	Invoicing compliance in Denmark Compliance timeline
Apps	Denmark Peppol
Guides	Supplier registration guide Issuing invoices guide Receiving invoices guide Peppol guide Chargebee guide
FAQ	Denmark FAQ
GOBL	Danish OIOUBL 2.1 Addon Denmark Tax Regime EU EN 16931 Addon
GitHub	gobl.dk.oioubl gobl.ubl

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