How to Start Arbitration in Denmark (danish Arbitration Board), Step‑by‑step (2026)

Understanding how to start arbitration in Denmark in 2026 is essential for any general counsel, commercial lawyer or company decision‑maker facing a dispute that falls under a Danish arbitration clause. The Danish Institute of Arbitration (Voldgiftsinstituttet), commonly referred to as the Danish Arbitration Board, administers the majority of institutional arbitration proceedings seated in Denmark under its own Rules of Arbitration. The 2025–2026 reform cycle has introduced shorter default submission deadlines, revised evidence‑taking guidance and an updated schedule of fees (the DIA takstblad, effective 2 March 2026), all of which change the practical steps a claimant or respondent must take before and after filing.

This guide sets out those steps in sequence, provides the documents checklist and timeline tables needed for internal planning, and maps the 2026 rule changes to the actions they require.

Overview of the Arbitration Process and Who It Applies To

Arbitration in Denmark can be conducted on an ad hoc basis, where the parties and their chosen tribunal set their own rules, or through an institution. The Danish Arbitration Board is the primary institutional forum. When a contract includes a clause referring disputes to the DIA, the DIA Rules of Arbitration govern the procedure from filing through to the final award. The statutory framework underpinning all arbitrations seated in Denmark is the Danish Arbitration Act (Voldgiftsloven), accessible via the official Retsinformation portal.

To commence arbitration before the Danish Arbitration Board, a claimant files a Notice of Arbitration with the DIA secretariat, pays the applicable filing fee and proposes or nominates one or more arbitrators. The DIA then administers the procedural timetable, assists with tribunal constitution where needed, and oversees administrative matters until the award is rendered. The 2026 reforms, discussed in detail below, have tightened several of these procedural windows, making advance preparation more important than ever.

Eligibility and Requirements for Starting Arbitration in Denmark

Any natural or legal person, Danish or foreign, may commence arbitration seated in Denmark, provided the dispute is covered by a valid arbitration agreement. There is no nationality or domicile restriction. The key prerequisites are a binding arbitration agreement, corporate authority to act, and compliance with the DIA’s filing requirements.

Arbitration agreement and clause review

Before filing, verify that the arbitration agreement or contract clause is valid under the Voldgiftsloven. Check the following:

• Scope. Does the clause cover the specific dispute (e.g., “all disputes arising out of or in connection with this contract”)?
• Seat. Confirm the seat of arbitration is Denmark. The seat determines the procedural law (Voldgiftsloven) and the courts available for interim relief and enforcement.
• Institutional rules. Identify whether the clause specifies DIA Rules, another institution’s rules, or ad hoc arbitration. If DIA Rules are specified, the DIA administers the case.
• Number of arbitrators. Note whether the clause prescribes a sole arbitrator or a three‑member panel, as this affects costs and timelines.

Who can sign, corporate authorisation checks

The Notice of Arbitration must be filed by, or on behalf of, a person with authority to bind the claimant. For companies, this typically requires a board resolution or power of attorney authorising the signatory to commence arbitration proceedings and, where relevant, to settle. Foreign companies should check whether the tribunal or the DIA requires notarisation or apostille of corporate authorisation documents.

Step‑by‑Step Procedure for How to Start Arbitration Denmark 2026

The following numbered steps walk through the complete arbitration process under the Danish Arbitration Board, from filing through to the final award. The timeline table below provides indicative durations for each stage.

Note: Typical durations vary by claim complexity. Cases placed on the expedited track may halve these durations. See the 2026 changes section below for expedited‑track triggers.

Step 1, Prepare and file the Notice of Arbitration

Filing the Notice of Arbitration (the “Demand”) is the formal act that commences the arbitration. This is where the process begins for any party learning how to start arbitration in Denmark in 2026.

• Draft the Notice. State the relief sought (including quantum), summarise the facts, identify the legal basis for each claim, and attach the arbitration agreement clause. The DIA accepts filings in Danish or English.
• Attach supporting documents. Include the arbitration clause (certified copy or excerpt), a power of attorney for counsel, and any key contracts or invoices that underpin the claim.
• Nominate arbitrator(s). If the arbitration agreement calls for a three‑member tribunal, nominate your party‑appointed arbitrator. If it calls for a sole arbitrator, propose a candidate or request that the DIA appoint one.
• Pay the filing fee. The DIA’s administrative filing fee is calculated by reference to the amount in dispute, as set out in the official DIA takstblad (Schedule of Fees, effective 2 March 2026). Pay the fee concurrently with filing; the DIA will not register the case until payment is received.
• Submit. File via the DIA’s designated submission method (email or online portal). Retain proof of submission and payment.

Step 2, Apply for interim relief and emergency measures

Interim or emergency relief may be needed before the tribunal is constituted, or even before the Notice of Arbitration is filed. Two channels are available:

• Application to a Danish court. Under the Voldgiftsloven, a party may apply to the Danish courts for interim measures (e.g., freezing orders, injunctions) regardless of whether the arbitration has commenced. The court application must include facts, supporting affidavits and an explanation of urgency.
• Application to the tribunal. Once constituted, the tribunal can order interim measures under the DIA Rules. The tribunal may require the applicant to provide security for costs arising from the measures.

Industry observers expect the 2026 procedural environment to favour early interim‑relief planning, because shorter response deadlines leave less time to react once proceedings are under way.

Step 3, Respondent files Response / Statement of Defence

After the DIA registers the Notice, it serves it on the respondent and sets a deadline for the Response (also referred to as the Statement of Defence). Under the 2025–2026 procedural practice, the standard response window is typically 14 to 28 days, significantly shorter than historical norms.

• Contents. The Response should address the claims, raise any jurisdictional objections, and, if applicable, include counterclaims with supporting facts and documents.
• Nominate arbitrator. If a three‑member tribunal is specified, the respondent must nominate its party‑appointed arbitrator within the same deadline.
• Consequences of missing the deadline. Failure to file a timely Response may result in the tribunal proceeding on the basis of the claimant’s submissions alone. The respondent risks forfeiture of procedural rights, including the right to nominate an arbitrator, the DIA may then appoint one on the respondent’s behalf.

Step 4, Tribunal constitution and appointment of arbitrators

Once both parties have nominated (or the DIA has appointed), the tribunal must be formally constituted. For a three‑member panel, the two party‑appointed arbitrators typically agree on a chair; failing agreement, the DIA appoints one.

• Conflict checks. Each nominee must disclose any circumstances that could give rise to justifiable doubts about their impartiality or independence. A party may challenge an appointment on these grounds.
• Timeline. Constitution ordinarily takes 14–28 days after the response period expires, depending on the complexity of the appointment process and any challenges.

Step 5, Case management conference and procedural order

Within 7 to 21 days of tribunal constitution, the chair convenes a case management conference (CMC). The CMC sets the procedural framework for the remainder of the case.

• Agenda items. Agreed deadlines for written submissions, the evidence timetable (document requests, witness statements, expert reports), hearing dates, and language of proceedings.
• Procedural Order No. 1. The tribunal issues a written order recording the agreed timetable. This order is binding on both parties and sets the pace for all subsequent steps.
• Expedited track. If the case qualifies for the expedited/summary procedure (see the 2026 changes section), the CMC timetable will be compressed accordingly, often targeting a final award within 90 days of filing.

Step 6, Document production and evidence taking

The 2025 reforms to evidence‑taking practice, analysed in detail by both Schjødt and Plesner, introduced clearer standards for document requests and shorter turnaround times for production. In 2026, these reforms are being applied as standard practice in DIA cases.

• Document requests. Requests must be specific and relevant. The tribunal may order production of identified categories of documents, following the revised DIA guidance and broadly aligning with the IBA Rules on the Taking of Evidence.
• Witness statements. Signed, dated witness statements are exchanged in advance of the hearing. Expert witnesses must submit a CV and an expert statement in the prescribed format.
• E‑discovery. Where electronically stored information is relevant, parties should agree on search terms, custodians and platforms early, ideally at the CMC stage.

Step 7, Hearing, award and costs allocation

Unless the parties agree to a documents‑only procedure, the tribunal will schedule an oral hearing. Hearings may be conducted in person, by video, or in a hybrid format, the DIA Rules and the procedural order will specify the approach.

• Hearing. Each party presents its case, examines its witnesses and cross‑examines the opposing party’s witnesses. The tribunal may ask questions and request further submissions.
• Award. The tribunal deliberates and issues a final award, typically within 4 to 12 weeks after the hearing. On the expedited track, the target is 2 to 8 weeks after written submissions close.
• Costs allocation. The tribunal allocates costs (administrative fees, tribunal fees, and, where the rules allow, a contribution toward the prevailing party’s legal costs) in the award. Fee amounts are governed by the DIA takstblad.
• Enforcement. Awards rendered in Denmark are enforceable domestically under the Voldgiftsloven and internationally under the New York Convention on the Recognition and Enforcement of Foreign Arbitral Awards.

Required Documents for Starting Arbitration in Denmark

The table below sets out the documents needed at each stage. Prepare the first six items before filing the Notice of Arbitration; the remaining items will be required as the case progresses.

A downloadable filing checklist, consolidating these items into a single printable pack, is being prepared as a companion resource.

Timeline and Key Deadlines for Arbitration in Denmark

Deadlines in DIA arbitration are now shorter by default under the 2025–2026 procedural reforms. The sample timetables below illustrate the standard and expedited tracks. Both assume an uncomplicated filing and no jurisdictional challenges. Actual deadlines are confirmed in the DIA’s correspondence and the tribunal’s Procedural Order No. 1.

Standard track, sample timetable

Expedited / summary track, sample timetable (2026 reform)

The expedited track is designed for lower‑value or less complex disputes and is typically administered by a sole arbitrator. The likely practical effect of the 2026 reforms is that more cases will default onto shortened timetables unless the parties or the tribunal orders otherwise at the CMC. GCs should therefore plan internal review cycles, including management approvals and evidence gathering, on the assumption that the 14‑day response window applies.

For cases involving multiple parties, counterclaims or complex jurisdictional objections, the standard track remains the norm, but response deadlines are still shorter than pre‑2025 practice. Calendar the deadlines immediately upon receipt of any DIA correspondence and diarise internal review milestones at least five business days ahead of each external deadline.

Costs, Fees and Tax Considerations for Arbitration in Denmark

Budgeting accurately is a critical early step. The costs of DIA arbitration comprise administrative fees payable to the institution, tribunal fees (arbitrator remuneration), counsel fees, expert fees and hearing logistics. The table below provides illustrative ranges; for exact administrative and tribunal fee amounts, consult the official DIA takstblad (Schedule of Fees, effective 2 March 2026).

Important: The ranges above for counsel, expert and venue costs are market estimates and are not drawn from the DIA takstblad. Always verify the official DIA administrative and tribunal fees against the current takstblad before filing. Arbitrator fees in Denmark are generally subject to Danish VAT at 25 %, though cross‑border VAT treatment for international parties should be reviewed with a tax adviser. Have finance approve the total budget, including a contingency, before filing the Notice of Arbitration.

What Changes in 2026, Practical Impact of the Reforms

The 2025–2026 reform cycle has introduced three sets of changes that directly affect how to start arbitration in Denmark in 2026. Each is mapped below to the practical steps it alters.

• Shorter default submission deadlines. The DIA’s procedural practice now defaults to compressed response windows, typically 14 days for the expedited track and 28 days for the standard track. The operational impact: respondents must have their internal dispute‑escalation and evidence‑gathering processes ready before a Notice arrives. Claimants benefit from the shorter timelines but must ensure their own initial filings are comprehensive, because abbreviated timetables leave less room for supplementary submissions.
• Revised evidence‑taking guidance. New rules on the taking of evidence for arbitration cases seated in Denmark, analysed by leading Danish firms, introduce clearer standards for document requests, shorter production deadlines and expectations for specificity. The practical effect: prepare document‑request lists at the pre‑filing stage, agree on e‑discovery protocols early, and brief witnesses before the CMC rather than after it.
• Updated DIA Schedule of Fees (takstblad, 2 March 2026). The revised fee schedule adjusts administrative and tribunal fee brackets. The practical effect: recalculate budget estimates against the new takstblad before filing and ensure the correct filing fee is paid to avoid registration delays.

Common Pitfalls and How to Avoid Them

• Missing the short response deadline. The 14–28‑day window is strict. Mitigation: set calendar alerts on Day 1 and pre‑draft a skeleton Response so that the legal team can populate it rapidly.
• Incorrect or missing corporate authority documents. Filing without a valid power of attorney or board resolution can delay registration and expose the filing to challenge. Mitigation: obtain and certify the board resolution authorising arbitration before any dispute triggers the clause.
• Failing to disclose arbitrator conflicts. Nominating an arbitrator without adequate conflict checks risks a successful challenge and a reset of the appointment clock. Mitigation: run conflict searches and request a disclosure statement from the nominee before submitting the nomination.
• Poorly formatted evidence bundles. Non‑compliant document production causes delays and may result in evidence being excluded. Mitigation: follow the DIA’s evidentiary protocol and the revised evidence‑taking guidance; start e‑discovery early.
• Underestimating interim relief needs. Waiting until after the tribunal is constituted to seek emergency measures may leave assets unprotected. Mitigation: assess interim relief requirements at the pre‑filing stage and prepare court applications in parallel with the Notice of Arbitration.

Conclusion

Starting arbitration before the Danish Arbitration Board in 2026 requires careful preparation, accurate budgeting and close attention to the shortened deadlines introduced by the recent procedural reforms. The steps are clear: review the arbitration clause, prepare and file a comprehensive Notice of Arbitration, pay the filing fee under the current DIA takstblad, and be ready to respond to, or defend against, compressed timetables. By following the step‑by‑step procedure, checklist and timeline tables set out in this guide, GCs and counsel can approach the process with confidence and avoid the common pitfalls that derail proceedings at the earliest stages. For jurisdiction‑specific advice or to connect with a qualified arbitration practitioner in Denmark, consult the Global Law Experts lawyer directory.

Sources

1. Danish Institute of Arbitration (Voldgiftsinstituttet), Schedule of Fees (takstblad), 2 March 2026
2. Danish Arbitration Act (Voldgiftsloven), Retsinformation
3. Schjødt, New rules for evidence in Danish arbitration cases
4. Plesner, Revised rules on the taking of evidence
5. Chambers Practice Guides, Denmark: International Arbitration (2026)
6. Wolters Kluwer, Analysis of updated DIA Rules
7. Legal 500, Denmark: International Arbitration