Workplace Accident in Denmark: Polish Worker's Guide 2026

A workplace accident involving a Polish worker in Denmark triggers a chain of legal obligations that span two countries, two social insurance systems, and at least one EU regulation. Understanding who is responsible, what must be reported, and how to file a compensation claim is not merely useful, in 2026 it is essential knowledge for every posted or locally employed Polish worker on a Danish construction site or in any other sector. This guide walks through the process step by step.

Step 1: Establish Who Is Liable, and Under Which Law

Liability for a workplace accident in Denmark is primarily governed by Danish law, regardless of the worker's nationality. The key piece of legislation is the Danish Act on Workers' Compensation (Lov om arbejdsskadesikring), which obliges every Danish employer to insure all employees against occupational injuries and diseases. If the injured worker is a posted worker, meaning they were sent from Poland by a Polish employer and hold a valid A1 certificate, the situation becomes more layered.

A valid A1 certificate confirms that the worker remains covered by Polish social security (ZUS) during the posting period. However, Danish workplace accident insurance is a separate obligation that applies to work performed on Danish soil. In practice, this means a posted worker may have entitlements under both systems simultaneously. The Danish insurer handles the occupational injury claim under Danish law, while ZUS handles any parallel Polish social security benefits. Coordination between the two is governed by EU Regulation 883/2004 on the coordination of social security systems.

If you are unsure about your A1 status or how a site transfer affects your coverage, the article on Transferring a Posted Worker to a New Site in Denmark 2026 explains the administrative steps involved in keeping documentation current across multiple Danish worksites.

Step 2: Immediate Actions After the Accident

The first hours after an injury are critical. Seek medical attention immediately, Danish emergency services (skadestue) or a general practitioner must document the injury. This medical record becomes a cornerstone of any subsequent claim. Do not delay treatment in the hope of resolving matters informally; undocumented injuries are far harder to compensate.

Notify your employer or site manager on the same day, or as soon as physically possible. Under Danish rules, the employer is required to report the accident to their workplace accident insurer. Serious accidents, those resulting in hospitalisation, permanent injury, or death, must also be reported to Arbejdstilsynet (the Danish Working Environment Authority) within a short timeframe. Arbejdstilsynet can be reached and accidents reported via their official portal at at.dk.

Step 3: Gather the Required Documents

Before filing any formal claim, collect the following documentation:

• Medical certificates and hospital discharge papers from the Danish healthcare provider
• A copy of your employment contract or posting agreement
• Your valid A1 certificate issued by ZUS
• Proof of Danish workplace accident insurance (ask your employer for the insurer's name and policy number)
• Witness statements from colleagues present at the time of the accident
• Photographs of the accident scene, if safely obtainable
• Any internal incident report completed by the employer

Polish workers employed directly in Denmark, not posted, but hired locally, should also check whether they are registered correctly with the Danish tax authority Skat and whether their employer has taken out the mandatory insurance. Gaps in insurance do not eliminate your right to compensation; the Danish Labour Market Insurance (Arbejdsmarkedets Erhvervssikring, AES) acts as a safety net in such cases.

Step 4: File the Claim With AES and Notify ZUS

The formal compensation claim in Denmark is handled by Arbejdsmarkedets Erhvervssikring (AES), the public authority that processes all workplace injury cases. If the employer's private insurer refuses the case or if no insurer can be identified, AES takes over directly. Claims can be initiated through the employer's insurer or via AES. Detailed guidance on the process is available at the Danish Ministry of Employment's information portal at bm.dk.

Simultaneously, a posted worker should inform ZUS in Poland about the accident. ZUS administers Polish social insurance benefits, including sickness allowance and rehabilitation benefits, which may run in parallel with Danish compensation during recovery. The ZUS online portal and relevant forms are available at zus.pl. Your Polish employer is also obliged under the Polish Labour Code (Kodeks Pracy) to prepare an internal accident protocol (protokół powypadkowy) and submit it to the relevant Polish authorities, even when the accident occurred abroad.

Consider also how your employment structure was arranged. Agencies that recruit and send workers abroad increasingly use digital tools to manage documentation, and understanding those processes can help you verify that your paperwork is in order before an incident ever occurs. The article on How AI Is Changing Recruitment in Agencies Sending Polish Workers to Denmark 2026 provides useful context on how modern agencies handle worker records.

Step 5: Wait for the Decision, and Know Your Appeal Rights

AES will assess the injury, review medical documentation, and issue a decision on whether the event qualifies as a workplace accident under Danish law. This process can take several months depending on the complexity of the case. During this period, keep all correspondence, do not discard any medical records, and attend any medical examinations requested by AES.

If the decision is unfavourable, you have the right to appeal. The appeal goes to the Danish Appeals Board for Industrial Injuries (Ankestyrelsen). Legal aid is available in Denmark for workers who cannot afford representation. Polish workers can also seek advice from the Polish Labour Inspectorate (PIP), which has a dedicated unit for workers employed or posted abroad.

Common Mistakes to Avoid

One of the most frequent errors is failing to report the accident to the employer on the day it happens. Workers sometimes fear dismissal or complications with their posting status. In reality, Danish law prohibits retaliation against workers who report injuries, and the obligation to report rests primarily with the employer, not the worker.

Another common mistake is assuming that the A1 certificate alone covers all Danish obligations. As explained above, Danish workplace accident insurance is a separate layer. Workers who rotate between sites should pay particular attention to ensuring their documentation reflects the correct worksite at all times, an issue explored in depth in the guide on Construction Worker Rotation Every 183 Days: A1 Status Guide 2026.

Finally, do not sign any settlement offer from an insurer without understanding its full implications. A lump-sum payment may close your right to future compensation if the injury worsens. Seek legal or union advice before accepting any final settlement.

Actionable Advice for 2026

Save the contact details for Arbejdstilsynet, AES, and your Polish ZUS branch before you start work in Denmark, not after an accident. Carry a copy of your A1 certificate and employment contract at all times on site. If your employer cannot name the workplace accident insurer on your first day of work, ask in writing and keep the response. These simple steps take minutes but can make the difference between a smooth claim and a prolonged legal dispute when you are most vulnerable.