M&A Due Diligence in Denmark 2026, Buyer & Seller Checklist for New Bookkeeping, Transfer‑pricing and Notification Rules

Conducting M&A due diligence in Denmark in 2026 requires deal teams to navigate a regulatory landscape that has shifted materially since mid‑2025. Three changes converge this year: the New Danish Bookkeeping Act took effect on 1 January 2026, mandating digital storage and standardised record‑keeping for virtually every Danish entity; transfer‑pricing documentation requirements were overhauled following legislation adopted on 2 June 2025; and the EU Pay Transparency Directive transposition deadline of June 2026 is introducing new employment‑data obligations that directly affect people‑focused due diligence. This guide translates each of those compliance shifts into a practical acquisition due diligence checklist, covering what buyers should request, what sellers must prepare, how reps and warranties need to change, and when merger‑control filings must land.

Executive Summary, What Deal Teams Must Know

Before diving into the detail, here are the four headline actions every buyer and seller should take immediately when a Danish transaction enters the pipeline in 2026:

• Verify Bookkeeping Act compliance early. Buyers must confirm that the target stores all accounting materials digitally, uses an approved digital bookkeeping system, and can produce machine‑readable ledger exports on request. Sellers who have not yet remediated gaps risk purchase‑price adjustments or delayed closing.
• Request complete transfer‑pricing documentation upfront. The 2025 legislative changes mean buyers should now expect local files, master files, and, where applicable, Country‑by‑Country (CbC) reports in the data room from day one. Missing or outdated TP documentation is a red flag for post‑closing tax exposure.
• Map merger‑control and notification timelines against closing. Danish Competition and Consumer Authority (KFST) filing windows and the practical effect of pre‑notification discussions must be built into the deal timetable, particularly where combined Danish turnover thresholds are met.
• Conduct Pay Transparency HR due diligence. With the transposition deadline in June 2026, acquirers should request equal‑pay audit data, gender pay‑gap reporting, and evidence of the target’s readiness to comply, or budget for post‑closing remediation.

Industry observers expect these four areas to be the primary sources of warranty claims and post‑closing disputes in Danish M&A throughout 2026 and into 2027.

Timeline of Key Legislative and Filing Dates (2024–June 2026)

Deal teams negotiating Danish transactions need a clear calendar. The table below consolidates every date that matters for M&A due diligence in Denmark, from the adoption of new transfer‑pricing rules through to the Pay Transparency transposition window.

Early indications suggest that the Danish Business Authority is increasing its scrutiny of digital bookkeeping compliance ahead of the first full‑year reporting cycle under the new Act, making it likely that targets with legacy paper‑based or non‑compliant systems will face questions, and potentially enforcement action, well before annual reports are filed.

The New Danish Bookkeeping Act, What Buyers Must Verify and Sellers Must Prepare

The Danish Bookkeeping Act, which came into full effect on 1 January 2026, represents the most significant change to accounting infrastructure requirements in Denmark in decades. According to the Danish Business Authority’s official guidance, companies must now store all accounting materials digitally, including receipts, records and descriptions of bookkeeping procedures, and use a registered digital bookkeeping system that meets prescribed standards for data integrity and audit trails.

Key obligations under the Danish Bookkeeping Act

Under the Act, businesses must register their bookkeeping in a digital bookkeeping system that automatically ensures a clear audit trail. All underlying documentation, invoices, receipts, contracts and bank statements, must be stored digitally, even if they originated in paper form. The system must be capable of producing data exports in a standardised, machine‑readable format. Companies must also maintain written descriptions of their bookkeeping procedures and internal controls.

Buyer’s action list

• Request a system‑export demonstration. Ask the target to produce a full general‑ledger export for the last three fiscal years in the machine‑readable format required by the Act. If the target cannot do this, it is non‑compliant.
• Review the digital bookkeeping system registration. Confirm the system is on the Danish Business Authority’s register of approved systems.
• Inspect the written bookkeeping procedures. These are mandatory. Their absence is a compliance failure and a red flag for financial statement reliability.
• Verify digital receipt storage. Sample‑check whether underlying receipts and invoices exist in the digital system and match ledger entries.
• Assess remediation cost. If the target is partially compliant, estimate the cost of full migration and factor this into the enterprise valuation or purchase‑price mechanism.

Seller’s action list

• Remediate gaps before the data room opens. Complete migration to an approved digital bookkeeping system, digitise all legacy paper records, and finalise written bookkeeping procedure descriptions.
• Prepare a disclosure schedule. Disclose any known non‑compliance or ongoing remediation, with a clear timeline and cost estimate, to avoid post‑closing warranty claims.
• Draft a specific warranty. Offer a representation that the company’s bookkeeping systems and practices comply in all material respects with the Danish Bookkeeping Act, including digital storage requirements.

Due diligence document requests, bookkeeping focus

Transfer‑Pricing Documentation Changes, M&A Due Diligence in Denmark and Post‑Closing Exposure

Following legislation adopted on 2 June 2025, Denmark has updated its transfer‑pricing documentation requirements to align more closely with OECD guidance while also introducing specific Danish reporting obligations. According to KPMG Denmark’s analysis, the new rules apply to fiscal years beginning on or after the adoption date and are designed to ease certain compliance burdens for smaller groups while tightening expectations for larger multinational enterprises.

Which groups and transactions are in scope?

Under Danish rules, all controlled transactions must be priced at arm’s length. Companies that are part of a multinational group and that exceed the relevant size thresholds must prepare and maintain transfer‑pricing documentation, comprising a master file, a local file, and, for ultimate parent entities of large MNE groups, a Country‑by‑Country report. The documentation must be available at the time the tax return is filed and submitted to the Danish tax authorities upon request.

Buyer’s TP due diligence, what to request

• Master file and local file. Request copies covering the last three fiscal years, plus any draft documentation for the current period.
• Country‑by‑Country (CbC) reports. If the target is the ultimate parent entity (or a Danish surrogate filer), request copies of all submitted CbC reports.
• Intercompany agreements. Review all agreements governing controlled transactions, service agreements, IP licences, financing arrangements, management fees.
• Benchmarking studies. Verify that the target has current, arm’s‑length benchmarking analyses supporting the pricing of material intercompany transactions.
• Tax‑audit history. Request copies of any transfer‑pricing audits, assessments, rulings or correspondence with the Danish tax authorities (Skattestyrelsen).
• Adjustment history. Identify any voluntary or compulsory transfer‑pricing adjustments made in the last five years, these signal prior non‑compliance.

Red flags and deal protections

The following TP‑related findings should trigger enhanced deal protections:

• Missing or outdated documentation. If the target cannot produce a current local file, this indicates a breach of documentation requirements and creates significant tax‑assessment risk.
• Material intercompany transactions with no benchmarking. Transactions priced without supporting economic analysis are vulnerable to challenge.
• Pending or recent tax audits. Ongoing TP audits should be quantified and ring‑fenced with specific indemnities or escrow arrangements.
• Inconsistencies between legal agreements and actual pricing. Divergence between written intercompany agreements and actual invoicing patterns is a common audit trigger.

Industry observers expect Danish tax authorities to increase TP audit activity during 2026 as the new documentation rules bed in, making thorough transfer pricing Denmark due diligence more critical than ever for acquirers.

Merger Control in Denmark, Notification Thresholds and Filing Practicalities

Denmark’s merger‑control regime, administered by the Danish Competition and Consumer Authority (KFST), applies to concentrations that meet specified turnover thresholds. According to the Chambers Global Practice Guide for M&A Regulation & Disputes 2026 (Denmark), parties must notify a transaction before closing if it meets one of the prescribed threshold tests.

Filing thresholds at a glance

Practical steps for deal teams

• Conduct a threshold analysis at LOI stage. Calculate Danish turnover for all parties based on the most recently audited accounts. Remember that turnover includes all revenue from the sale of products and provision of services in Denmark.
• Engage in pre‑notification discussions. The KFST encourages, and in practice expects, parties to engage in pre‑notification consultations. This can significantly reduce the formal review period.
• Build filing time into the deal timetable. A standard Phase I review takes 25 working days from the date of complete notification. If the KFST opens a Phase II investigation, the review period extends by an additional 90 working days. Parties should not assume closing is achievable without clearance.
• Consider parallel EU filings. Where a transaction also triggers the EU Merger Regulation, coordinate the Danish and EU filing strategies to avoid delays.
• Include a regulatory‑clearance condition precedent. The SPA should contain a clear condition precedent requiring merger‑control clearance (or expiry of the waiting period) before completion can occur.

The likely practical effect of KFST’s ongoing focus on digital markets and sustainability‑related mergers is that deal teams in those sectors should allow additional time for review and prepare detailed market‑definition submissions.

Financial Due Diligence and Warranties, Adapting Reps & Warranties to 2026 Rules

The 2026 regulatory changes demand a fresh approach to drafting the representations and warranties in Danish SPAs. Financial warranties that were adequate in 2024 may no longer cover the risks introduced by the Danish Bookkeeping Act and updated transfer‑pricing rules.

Recommended warranty provisions

• Bookkeeping Act compliance warranty. The seller should warrant that the company’s bookkeeping systems, digital storage practices, and written procedures comply in all material respects with the Danish Bookkeeping Act as in effect at closing.
• TP documentation warranty. The seller should warrant that transfer‑pricing documentation (master file, local file, and CbC reports where applicable) has been prepared in accordance with Danish law and is current as of the most recent fiscal year‑end.
• No‑undisclosed‑tax‑liabilities warranty. Standard tax warranties should be expanded to specifically reference transfer‑pricing adjustments, pending TP audits, and any voluntary corrections made to the tax authorities.
• Accounts warranty, digital records. The general “accounts are true and fair” warranty should be supplemented with a specific representation that underlying records are maintained in digital format as required by applicable law.

Limitation and negotiation points

Sellers will typically seek to qualify these warranties with knowledge qualifiers and materiality thresholds. Buyers conducting M&A due diligence in Denmark should resist broad knowledge qualifiers on Bookkeeping Act compliance, the obligation is objective and system‑based, meaning the target either uses an approved system or it does not. On transfer‑pricing warranties, a “to the best of the seller’s knowledge” qualifier may be acceptable if the buyer has been granted full data‑room access and has conducted its own TP review.

Seller disclosure schedule items

• List of all digital bookkeeping systems in use, with registration status.
• Summary of any open or closed transfer‑pricing audits in the last five years.
• Details of any voluntary TP adjustments or corrections.
• Known non‑compliance with digital storage requirements, with remediation timeline.
• Any correspondence from the Danish Business Authority regarding bookkeeping practices.

Employment, Pay Transparency & HR Due Diligence

The EU Pay Transparency Directive transposition deadline of June 2026 introduces obligations that directly affect people‑focused due diligence in Danish M&A. Acquirers should treat pay‑transparency compliance as a standalone DD workstream rather than folding it into a general employment review.

HR due diligence checklist

• Equal‑pay audit data. Request the target’s most recent equal‑pay analysis, including methodology, findings and any remediation actions taken.
• Gender pay‑gap reporting. Obtain copies of any pay‑gap reports submitted (or prepared for submission) under the transposed directive.
• Pay‑banding and transparency structures. Review whether the target has implemented the pay‑band disclosure obligations required for job postings and existing employees.
• Employee transfer obligations. Under the Danish Act on Employees’ Rights in the Event of Transfers of Undertakings, employees transfer automatically. Verify headcount, terms, notice periods and any collective‑agreement obligations.
• Incentive plans and change‑of‑control provisions. Review equity incentive plans, bonus schemes and retention arrangements for acceleration or forfeiture triggers linked to a change of control.
• Consultation requirements. Confirm whether employee consultation obligations apply and have been or will be satisfied before closing.

Where material pay‑equity gaps are identified, industry observers expect buyers to negotiate specific indemnities or holdback provisions to cover the cost of remediation, back‑pay adjustments and potential regulatory penalties.

Acquisition Financing & Security, Lender and Integration Considerations

Lenders providing acquisition financing in Denmark in 2026 increasingly condition drawdown on evidence of the target’s regulatory compliance. The practical effect of the Bookkeeping Act and TP documentation changes is that conditions precedent in facility agreements now routinely include confirmations that go beyond traditional financial‑covenant packages.

What lenders expect

• Bookkeeping system integrity. Lenders may require a certificate from the target’s CFO or auditor confirming that the company uses an approved digital bookkeeping system and can produce compliant financial exports.
• TP compliance confirmation. For acquisitions of targets with significant intercompany flows, lenders may request evidence that transfer‑pricing documentation is current and that no material TP disputes are outstanding.
• Standard Danish security packages. Typical security includes share pledges over the target and its subsidiaries, floating charges over trade receivables and inventory, and assignment of key contracts and insurance policies. Notarisation is not required, but registration of certain security interests (e.g., in the Personal Register) is necessary for perfection.
• Regulatory‑clearance conditions precedent. Facility agreements will condition the first drawdown on receipt of all required regulatory clearances, including merger‑control approval from KFST.

The likely practical effect of these developments is that acquisition financing timelines for Danish deals will extend slightly in 2026, as borrowers gather and present compliance evidence that was not previously part of the standard CP checklist.

Practical M&A Checklist Denmark, Buyer and Seller 30‑Point DD & Disclosure Checklist

Buyer checklist (20 items)

1. Request general‑ledger export in machine‑readable format for last three fiscal years.
2. Verify target’s digital bookkeeping system is on the Danish Business Authority’s approved register.
3. Obtain and review written bookkeeping procedures and internal‑control descriptions.
4. Sample‑check digital storage of receipts, invoices and contracts.
5. Request transfer‑pricing master file and local file for last three fiscal years.
6. Obtain copies of all Country‑by‑Country reports submitted (if applicable).
7. Review all intercompany agreements governing controlled transactions.
8. Request current benchmarking studies supporting material intercompany pricing.
9. Obtain history of transfer‑pricing audits, assessments and correspondence with Skattestyrelsen.
10. Identify any voluntary or compulsory TP adjustments in the last five years.
11. Calculate Danish turnover for merger‑control threshold analysis.
12. Assess whether pre‑notification engagement with KFST is required.
13. Review any pending regulatory investigations or enforcement actions.
14. Request the target’s equal‑pay audit data and gender pay‑gap reports.
15. Verify pay‑banding and transparency structures for compliance with transposed directive.
16. Review employee headcount, terms and collective agreements for transfer obligations.
17. Inspect incentive plans for change‑of‑control triggers.
18. Assess IT systems integration requirements (digital bookkeeping system migration).
19. Review insurance policies for D&O coverage and warranty & indemnity insurance eligibility.
20. Obtain auditor management letters and any flagged compliance deficiencies.

Seller disclosure checklist (10 items)

1. Prepare a compliance statement on Bookkeeping Act status, including system registration details.
2. Compile all transfer‑pricing documentation and make available in virtual data room.
3. Disclose all open or closed TP audits and any voluntary corrections.
4. List all digital bookkeeping systems in use across group entities.
5. Prepare disclosure schedule for known non‑compliance or remediation items.
6. Provide equal‑pay audit findings and gender pay‑gap reporting status.
7. Confirm employee consultation process timeline and status.
8. Identify all regulatory filings required for the transaction (merger control, FDI if applicable).
9. Prepare a summary of material intercompany transactions and pricing methodology.
10. Collate all correspondence with the Danish Business Authority and Skattestyrelsen relevant to compliance.

Sample Contract Language & Negotiation Tips

The following sample clause concepts and negotiation guidance address the specific risks introduced by the 2026 regulatory changes. These are illustrative and should be adapted to each transaction with the assistance of Danish legal counsel.

• Bookkeeping Act warranty. “The Company’s bookkeeping systems, digital storage practices, and written bookkeeping procedures comply in all material respects with the Danish Bookkeeping Act (bogføringsloven) as in force at the date of this Agreement.”, Negotiation tip: Buyers should resist a “to the seller’s knowledge” qualifier here; compliance is verifiable and objective.
• TP documentation warranty. “Transfer‑pricing documentation (including master file, local file and, where applicable, CbC reports) has been prepared and is maintained in accordance with applicable Danish tax law for each fiscal year ending on or after [date].”, Negotiation tip: Tie the warranty to a specific date to capture the new documentation rules.
• TP indemnity. “The Seller shall indemnify the Buyer against any Tax Liability arising from a transfer‑pricing adjustment by the Danish tax authorities in respect of any fiscal year ending on or before the Completion Date, subject to the limitations set out in Schedule [X].”, Negotiation tip: Consider an escrow arrangement of 5–15% of the purchase price to secure this indemnity where TP exposure is material.
• Merger‑control condition precedent. “Completion shall be conditional upon receipt of unconditional clearance from the Danish Competition and Consumer Authority, or the expiry of the applicable review period without a decision to open a Phase II investigation.”
• Long‑stop date with regulatory‑failure termination right. “Either party may terminate this Agreement if the Condition Precedent relating to merger‑control clearance has not been satisfied or waived by the Long‑Stop Date.”
• Pay Transparency remediation holdback. “An amount equal to [EUR/DKK amount] shall be retained in escrow pending completion by the Company of the remediation actions set out in the Pay Transparency Compliance Plan attached as Schedule [Y].”, Negotiation tip: Use this where the DD reveals material equal‑pay gaps that require correction.

Next Steps

Danish M&A due diligence in 2026 demands a more granular approach than in prior years. The Bookkeeping Act, transfer‑pricing documentation reforms and Pay Transparency obligations have each introduced new compliance checkpoints that directly affect deal timing, risk allocation and purchase‑price mechanics. Deal teams that integrate these workstreams early, at LOI or term‑sheet stage, will avoid costly surprises between signing and closing.

For guidance on assembling the right advisory team for a Danish transaction, consult the Global Law Experts Denmark lawyer directory, which connects buyers, sellers and their advisers with experienced Danish M&A practitioners.

Sources

1. Danish Business Authority, Guide on Bookkeeping & Digital Bookkeeping Systems
2. Azets, New Danish Bookkeeping Act
3. KPMG Denmark, Transfer Pricing Year‑End Considerations
4. BDO Denmark, Transfer Pricing Documentation Requirements
5. Chambers Global Practice Guides, M&A Regulation & Disputes 2026 (Denmark)
6. PwC Denmark, Mergers and Acquisitions
7. Partner Revision, Doing Business in Denmark 2026