Denmark 2026: Bookkeeping Act & Business Rules, Practical Compliance Checklist for German Companies

Last reviewed: 13 May 2026

The bookkeeping act Denmark landscape changed fundamentally when Act no. 700 of 24 May 2022 began rolling out mandatory digital bookkeeping, e‑invoicing and SAF‑T requirements in phased waves, with the broadest cohort of private businesses brought into scope from January 2026. For German companies doing business in Denmark, whether through a branch, a subsidiary or cross‑border supply contracts, the compliance obligations now extend well beyond accounting: they reshape invoicing workflows, contract clauses, transfer‑pricing documentation and even green‑marketing claims. This guide maps out every obligation, supplies ready‑to‑use contract clauses Denmark practitioners can adapt, and explains the enforcement risks that make non‑compliance genuinely costly.

• Review invoicing infrastructure, confirm your ERP or accounting system supports Peppol BIS and OIOUBL formats.
• Update commercial contracts, add clauses covering e‑invoicing, archival, audit co‑operation and green‑marketing warranties.
• Prepare written accounting procedures, required for most companies in Denmark by 2026.

1. Executive Summary, What German Companies Must Know Now About the Bookkeeping Act Denmark

The Danish Bookkeeping Act (Act no. 700 of 24 May 2022) replaced Denmark’s previous bookkeeping statute and entered into force on 1 July 2022. It introduced a phased mandate: all enterprises covered by the Act must register and archive bookkeeping records in approved digital bookkeeping systems, send and receive structured electronic invoices, and be able to export data in the SAF‑T standard file format.

The January 2026 milestone is the one German companies Denmark‑wide need to focus on most urgently. According to the European Commission’s eInvoicing Country Sheet for Denmark, all private businesses with annual turnover exceeding DKK 300,000 must comply with the digital bookkeeping requirements by that date. Industry observers expect this final wave to capture the vast majority of foreign‑owned entities trading in Denmark.

Running alongside the bookkeeping reforms are two adjacent compliance streams that compound the workload. First, stricter green marketing rules Denmark regulators are now actively enforcing require documentary proof behind any environmental product claim, relevant for German exporters marketing products in Denmark. Second, transfer pricing Denmark obligations have tightened, requiring contemporaneous documentation that relies on the same underlying bookkeeping data the Act now mandates digitally.

The practical effect is that German companies can no longer treat Danish bookkeeping rules as a back‑office accounting task. Contract templates, invoicing systems, data‑transfer agreements and marketing materials all need updating.

Quick Checklist, Six Immediate Actions

• Audit your digital bookkeeping system. Confirm it appears on the Danish Business Authority’s public register of standard digital bookkeeping systems or qualifies as a specialised system.
• Verify e‑invoicing capability. Test both Peppol BIS and OIOUBL sending and receiving with Danish counterparties.
• Draft written accounting procedures. Document transaction recording, archival processes and responsible personnel.
• Update commercial contracts. Insert clauses on invoicing format, archival co‑operation, SAF‑T export and green‑marketing warranties.
• Coordinate with your tax team. Ensure transfer‑pricing documentation draws on the digitally stored bookkeeping data the Act requires.
• Map penalties and enforcement triggers. The Danish Bookkeeping Act includes provisions for fines up to DKK 1.5 million for violations.

2. Law & Guidance: The Bookkeeping Act and Official Sources

The primary legislation is Act no. 700 of 24 May 2022, commonly referred to as the Danish Bookkeeping Act (Bogføringsloven). Part 1 of the Act establishes that it applies to commercial enterprises formed in Denmark irrespective of type, and, critically for foreign company Denmark compliance, it extends to branches and permanent establishments of foreign entities conducting business in the country.

The Act mandates three core obligations: (1) use of a registered digital bookkeeping system capable of receiving electronic invoices, (2) digital storage of bookkeeping material including purchase and sales documentation, and (3) the ability to export bookkeeping data via a SAF‑T standard file upon request by authorities.

Key Statutory Definitions

• Bookkeeping material (Section 3). Encompasses registrations, documentation for transactions (invoices, receipts, contracts) and the accounting procedures document itself.
• Registered digital bookkeeping system. A system that has been registered with the Danish Business Authority and meets technical requirements for e‑invoicing, digital storage and SAF‑T export.

Official Guidance & Public Registers

The Danish Business Authority published a comprehensive 87‑page guide on bookkeeping and digital bookkeeping systems in April 2023, which remains the primary implementation reference. Providers of digital bookkeeping systems must register with the Authority and comply with the requirements for so‑called “digital standard bookkeeping systems.” The SKAT (Danish Tax Authority) has also issued guidance on the obligation to store data under the new Act, confirming that the retention period and format requirements apply from the date of entry into force.

3. Who Is in Scope: Companies, Branches and Foreign Entities

The scope of the bookkeeping act Denmark framework is broad. The Act applies to all commercial enterprises formed in Denmark. For German companies, the critical question is whether their Danish operations constitute an enterprise “formed in” or operating within the country in a manner that triggers the obligation.

Practical Tests, When a German Company Is Subject to Danish Bookkeeping Rules

A German company will generally be treated as subject to the Danish bookkeeping rules if it operates through a registered branch (filial), maintains a fixed place of business qualifying as a permanent establishment, or is VAT‑registered in Denmark. The European Commission’s country sheet confirms that by January 2026, all private businesses with annual turnover exceeding DKK 300,000 must comply, a threshold that captures most active operations. German suppliers without a physical presence but who regularly trade with Danish customers will, at minimum, need e‑invoicing capability to satisfy their counterparties’ own compliance requirements.

4. Technical Compliance: Digital Bookkeeping Systems, E‑Invoicing & SAF‑T

The Danish bookkeeping rules mandate the use of a digital bookkeeping system capable of three functions: receiving electronic invoices, storing these and other relevant documents electronically, and supporting the exchange of bookkeeping data via a SAF‑T standard file. Systems must be registered with the Danish Business Authority to qualify as “digital standard bookkeeping systems.”

The Act requires all standard and specialised bookkeeping systems to support both the OIOUBL and Peppol BIS e‑invoicing formats. This dual‑format requirement means German companies cannot simply rely on Peppol alone, their systems must also handle the Denmark‑specific OIOUBL standard, which is used in the NemHandel infrastructure for domestic B2G and B2B invoicing.

Vendor Checklist for ERP / Accounting Systems

• DBA registration. Confirm your provider’s system appears on the Danish Business Authority’s public register.
• Dual e‑invoicing support. The system must send and receive both OIOUBL and Peppol BIS Billing 3.0 invoices.
• SAF‑T export. On‑demand export of bookkeeping data in the Danish SAF‑T format must be available.
• Digital archival. All purchase and sales documentation must be stored digitally with audit trails, for a minimum of five years.
• NemHandel connectivity. For B2G transactions, integration with Denmark’s NemHandel e‑invoicing network is essential.
• Update commitments. The provider should contractually commit to maintaining compliance with future DBA technical requirements.

Steps for German Suppliers to Accept and Send E‑Invoices to Danish Customers

If your German company sells to Danish customers, industry observers expect you will increasingly be required to deliver invoices in Peppol BIS or OIOUBL format. Practically, this means registering on the Peppol network (typically through an access‑point provider), configuring your ERP for structured invoice output, and testing the end‑to‑end workflow with at least one Danish trading partner before the obligation bites.

5. Contract Implications, Clauses German Companies Must Add or Update

The 2026 changes do not merely affect accounting departments. They impose documentary and format obligations that must be reflected in commercial agreements. Below is a clause bank covering the six most critical areas where contract clauses Denmark practitioners should update.

Invoicing and Electronic Invoice Format Clause

Sample clause: “All invoices issued under this Agreement shall be delivered electronically in Peppol BIS Billing 3.0 or OIOUBL format, via the NemHandel network or an agreed Peppol access point. Paper invoices or unstructured PDF invoices shall not constitute valid invoices for the purposes of triggering payment obligations.”

Drafting note: This clause protects the Danish buyer’s bookkeeping compliance and gives the German seller clarity on the required delivery mechanism. Consider adding a grace period for system implementation if the clause is being introduced mid‑contract.

Recordkeeping & Archival Clause

Sample clause: “Each party shall retain all transaction documentation (including invoices, credit notes, delivery receipts and contractual amendments) in digital format for a minimum of five years from the end of the financial year in which the transaction occurred, in a manner accessible for audit purposes.”

Drafting note: Aligns with the Danish Bookkeeping Act’s retention requirements. Specify the format (structured data, not scanned images) to avoid disputes over accessibility.

Audit Co‑operation & Data Export Clause

Sample clause: “Upon request from the other party or a competent Danish authority, each party shall provide bookkeeping data relating to transactions under this Agreement in SAF‑T format within 15 business days. Each party shall bear its own costs of data extraction and export.”

Drafting note: The SAF‑T export obligation means counterparties may need each other’s co‑operation during audits. Setting a timeframe and cost allocation prevents disputes.

Data Transfer, Cross‑Border Processing & GDPR Alignment Clause

Sample clause: “Where bookkeeping data includes personal data, cross‑border transfers between Denmark and Germany shall comply with the GDPR and any applicable Danish data‑processing requirements. The parties shall enter into a data‑processing agreement where required by applicable law.”

Drafting note: Digital bookkeeping data often contains employee or customer personal data. Ensure alignment between the bookkeeping archival obligation and GDPR data‑minimisation principles.

Green‑Marketing Warranty & Evidence Clause

Sample clause: “The Seller warrants that all environmental claims relating to the products supplied under this Agreement are supported by verifiable documentary evidence, which shall be made available to the Buyer on request. The Seller shall indemnify the Buyer against any fines or enforcement actions arising from unsubstantiated green claims.”

Drafting note: Green marketing rules Denmark regulators are actively enforcing require that environmental claims be substantiated. This clause shifts the documentary burden to the party making the claim and provides a contractual backstop.

Transfer‑Pricing Documentation & Information Rights Clause

Sample clause: “Each party shall maintain contemporaneous transfer‑pricing documentation for all intercompany transactions under this Agreement, in accordance with Danish and German transfer pricing rules. Each party shall provide the other with such documentation or underlying data as is reasonably required to prepare or defend transfer‑pricing filings within 30 days of a written request.”

Drafting note: Transfer pricing Denmark requirements demand contemporaneous documentation. This clause ensures co‑operation between affiliated entities and reduces the risk of inconsistent positions.

Indemnity & Cap on Liability for Bookkeeping Non‑Compliance

Sample clause: “If either party’s failure to comply with the Danish Bookkeeping Act causes the other party to incur fines, penalties or additional costs, the non‑compliant party shall indemnify the other up to an aggregate cap of [amount/percentage of annual contract value].”

Drafting note: Without this clause, a counterparty’s bookkeeping failure could trigger knock‑on penalties. Negotiating a cap ensures proportionality while maintaining accountability.

6. Tax & Transfer‑Pricing Interplays

The bookkeeping act Denmark framework does not exist in isolation from tax obligations. The SKAT (Danish Tax Authority) has confirmed that bookkeeping data stored under the new Act forms the evidential foundation for tax reporting, VAT returns and transfer‑pricing documentation. A failure in bookkeeping compliance can therefore cascade into tax adjustments, penalties and weakened positions during tax audits.

Transfer pricing Denmark rules require related‑party transactions to be documented contemporaneously. The digital bookkeeping system must be capable of generating the underlying transactional data that supports arm’s‑length pricing. Where bookkeeping records are incomplete or stored in non‑compliant formats, tax authorities may disregard the taxpayer’s transfer‑pricing documentation and impose adjustments based on their own estimates, a scenario that carries significant financial risk for German parent companies.

Practical Coordination Between Tax and Commercial Teams

• Establish a documentation map. Identify which bookkeeping data feeds into transfer‑pricing files and ensure it is extracted from the registered digital bookkeeping system.
• Align retention periods. Tax documentation must be retained for at least five years, matching the bookkeeping Act’s minimum, but check whether specific transfer‑pricing rules require longer retention.
• Test SAF‑T exports. Run a test extraction of SAF‑T data and verify it includes the fields SKAT requires for tax audit purposes.
• Joint review sessions. Schedule quarterly reviews between the Danish tax function and the commercial/legal team to ensure contract amendments are reflected in both bookkeeping and TP documentation.

7. Enforcement, Penalties & Cross‑Border Dispute Risks Under the Bookkeeping Act Denmark

The Danish Bookkeeping Act includes provisions for penalties with fines up to DKK 1.5 million for violations of digital bookkeeping requirements. Enforcement is primarily administrative, with the Danish Business Authority empowered to issue orders and, in serious cases, refer matters for prosecution. The likely practical effect will be that enforcement initially targets enterprises that fail to adopt a registered digital bookkeeping system at all, before widening to address non‑compliant archival or e‑invoicing practices.

Beyond direct fines, non‑compliance creates secondary risks that are often more significant for German companies Denmark operations. In civil litigation, incomplete or non‑compliant bookkeeping records can be used as evidence of poor governance or bad faith, weakening a company’s position in contractual disputes. Danish courts may draw adverse inferences where a party cannot produce transaction records in the format required by law.

Cross‑Border Enforcement & Recognition

Danish administrative fines are not automatically enforceable in Germany under EU instruments. However, the practical pressure points are substantial. A German company with a Danish branch or subsidiary cannot avoid consequences for that entity, and non‑compliance can trigger broader investigations touching intercompany transactions and tax positions. Where disputes escalate to arbitration or court proceedings, the inability to produce compliant bookkeeping records in SAF‑T format may result in cost sanctions or evidentiary disadvantages.

Early indications suggest that Danish authorities are co‑ordinating with tax authorities on enforcement, meaning a bookkeeping audit could simultaneously trigger a transfer‑pricing review. German companies should therefore treat bookkeeping compliance as a first line of defence for the broader regulatory relationship with Danish authorities.

8. Practical Implementation Plan & Checklist for German Companies

Implementing the Danish bookkeeping rules requires a structured project with clear ownership. The following twelve‑step playbook can be adapted to your organisation’s size and Danish footprint.

1. Appoint a compliance lead, designate a single owner (typically the Danish finance manager or German group controller) responsible for bookkeeping act compliance.
2. Map your Danish entities, list all subsidiaries, branches and VAT registrations that trigger the obligation.
3. Audit the current bookkeeping system, check registration status on the Danish Business Authority’s public register.
4. Test e‑invoicing capability, run end‑to‑end tests for Peppol BIS and OIOUBL with a Danish counterparty.
5. Verify SAF‑T export, generate a test SAF‑T file and validate against the Danish standard specification.
6. Draft written accounting procedures, document how transactions are recorded, approved and archived.
7. Review and amend commercial contracts, insert the six clauses from Section 5 above into new and renewed agreements.
8. Co‑ordinate with the tax team, align bookkeeping data with transfer‑pricing documentation requirements.
9. Review green‑marketing claims, ensure all environmental product claims are supported by documentary evidence stored in the bookkeeping system.
10. Train relevant personnel, conduct briefings for finance, procurement and sales teams on the new obligations.
11. Set up a monitoring calendar, diarise key dates, annual reviews and system update deadlines.
12. Engage Danish legal counsel, obtain sign‑off on contract clauses and compliance documentation from a practitioner familiar with Danish enforcement practice.

9. Sample Annex, Ready‑to‑Use Contract Clauses

The following condensed clauses can be inserted directly into supply agreements, distribution contracts and intercompany arrangements. Adapt defined terms and thresholds to your specific transaction.

Clause 1, Electronic Invoice Format

“All invoices shall be delivered in Peppol BIS Billing 3.0 or OIOUBL format. Invoices in any other format shall not trigger the payment terms of this Agreement.”

Clause 2, Digital Archival

“Each party shall store all transaction documentation digitally for a minimum of five years, in a format permitting electronic search and extraction.”

Clause 3, SAF‑T Audit Co‑operation

“Upon written request, each party shall provide bookkeeping data in SAF‑T format within 15 business days. Each party bears its own extraction costs.”

Clause 4, GDPR & Cross‑Border Data Transfer

“Cross‑border transfers of bookkeeping data containing personal data shall comply with the GDPR. The parties shall execute a data‑processing agreement where applicable.”

Clause 5, Green‑Marketing Warranty

“The Seller warrants that all environmental claims are supported by verifiable evidence and shall indemnify the Buyer against fines arising from unsubstantiated claims.”

Clause 6, Bookkeeping Non‑Compliance Indemnity

“A party whose bookkeeping non‑compliance causes the other party to incur fines or penalties shall indemnify the affected party, subject to an aggregate cap of [agreed amount].”

10. Where to Get Help, Retained Counsel, Auditors & Tech Vendors

Compliance with the Danish bookkeeping act requires co‑ordination across three professional disciplines: legal counsel for contract drafting and enforcement strategy, auditors for accounting‑procedure design and SAF‑T validation, and technology vendors for system implementation. When selecting vendors, prioritise those whose systems appear on the Danish Business Authority’s public register and who contractually commit to maintaining compliance with evolving technical requirements.

For German companies seeking tailored guidance on contract amendments, enforcement risk and cross‑border dispute strategy, experienced Danish commercial practitioners can be found through the Denmark lawyer directory on Global Law Experts.

Sources

1. Danish Business Authority, Act no. 700 of 24 May 2022 (Danish Bookkeeping Act PDF)
2. Danish Business Authority, Guide on Bookkeeping and Digital Bookkeeping Systems (April 2023)
3. KPMG Denmark, Digital Bookkeeping Requirements in Denmark
4. PwC Denmark, The New Danish Bookkeeping Act
5. European Commission, 2025 Denmark eInvoicing Country Sheet
6. SKAT (Danish Tax Authority), Obligation to Store Data Basis
7. Azets, New Danish Bookkeeping Act