Danish Wage Supplements for Polish Workers: 2026 Guide

Understanding Danish wage supplements, known locally as tillaeg, is one of the most practical skills a Polish construction worker can develop before setting foot on a Danish site. Whether you are employed directly by a Danish contractor or posted through a staffing agency, your right to overtime pay, unsocial-hours supplements, and other wage additions is protected under Danish collective agreements and EU law. Getting these calculations wrong can cost you hundreds or even thousands of Danish kroner over the course of a single project.

Step 1: Check Your Eligibility

Before you can claim any supplement, you need to understand which legal framework governs your employment. Workers posted from Poland to Denmark fall under the EU Posted Workers Directive, which Denmark has implemented through national legislation. This means Danish minimum pay conditions, including tillaeg, apply to you from your first working day, regardless of which country your employer is registered in.

In practice, most Danish construction work is covered by collective agreements negotiated between the Danish Construction Association (Dansk Byggeri) and the relevant trade union. These agreements set out not just a base hourly rate but a range of supplements: for work performed in the evening, at night, on weekends, in difficult conditions, and beyond the standard weekly hours. If your employer has not told you which collective agreement applies, you have every right to ask, and Arbejdstilsynet, the Danish Working Environment Authority, can confirm whether a worksite is covered. You should also make sure your posting paperwork is in order; a valid A1 Certificate and RUT registration are prerequisites for working legally in Denmark and for any subsequent wage claim.

Step 2: Gather the Required Documents

A successful supplement claim rests on documentation. You will need your employment contract or posting letter, all payslips received during the work period, and a complete record of your working hours. Danish law requires employers to maintain time-registration records, and since a landmark ruling by the Court of Justice of the European Union in the CCOO case, EU member states are expected to ensure systematic time tracking. If your employer has not provided you with access to a time-registration system, this is itself a compliance issue, one that carries serious financial consequences for the employer, as explained in our article on fines for missing time registration in Denmark 2026.

Alongside your hours records, keep copies of any written instructions you received about shift patterns or weekend work. These become crucial evidence if a dispute arises about whether overtime or unsocial-hours supplements were owed.

Step 3: Calculate Your Tillaeg and Overtime

Tillaeg calculations follow a clear logic once you know the rules. Standard working hours under most Danish construction agreements are 37 hours per week. Hours worked beyond that threshold attract an overtime supplement, typically expressed as a percentage added on top of the base hourly rate. Evening and night shifts, as well as Saturday and Sunday work, carry their own separate supplement rates. These percentages are set out in the relevant collective agreement and can vary between agreements, so always refer to the specific document that covers your worksite rather than relying on general figures heard from colleagues.

To illustrate the method without inventing figures: imagine a hypothetical worker who completes 42 hours in a given week, with 5 of those hours falling on a Saturday. He would first identify his base hourly rate from his contract, then apply the overtime supplement rate (from the agreement) to the 5 hours beyond 37, and separately apply the Saturday supplement rate to the 5 hours worked on that day, checking whether those two supplements are additive or whether only the higher one applies, which again depends on the specific agreement text.

SKAT, the Danish tax authority, provides guidance on how wage income is reported and taxed in Denmark, which is relevant once you have established the gross amounts owed. You can find current information at skat.dk.

Step 4: Submit Your Claim or Raise the Issue

If you believe supplements have not been paid correctly, the first step is a written request to your employer or the staffing agency placing you on site. Put everything in writing and keep copies. If the employer does not respond or disputes your calculation, you can contact the relevant trade union, membership gives you access to legal support at no extra cost. Alternatively, Arbejdstilsynet can be contacted at at.dk for guidance on working conditions, though wage disputes are primarily handled through the union or the courts.

Polish workers who are also managing their ZUS social insurance contributions from the Polish side can find current posting and contribution rules at zus.pl. Keeping your Polish obligations in order runs parallel to, and does not replace, your Danish wage rights.

Step 5: Follow Up and Keep Records

Once a claim is submitted, response times vary. A written employer response should arrive within a reasonable period; if it does not, escalate through the union channel. Throughout this process, maintain a running file: every email, every payslip, every shift schedule. Danish labor disputes can be resolved relatively quickly when the documentation is solid, but they stall when records are incomplete.

The broader context matters too. The Danish labor market in 2026 remains competitive for skilled tradespeople, and employers are increasingly aware that transparent, correctly calculated pay is a retention tool, not just a legal obligation. As our analysis of how Polish staffing agencies attract workers to Denmark in 2026 shows, pay structure and supplement clarity are now central to how agencies differentiate themselves.

Common Mistakes to Avoid

The most frequent error Polish workers make is assuming that the rate on their payslip already includes all supplements. It often does not. Always cross-reference the payslip line items against the collective agreement. A second common mistake is waiting too long to raise a discrepancy, Danish limitation periods for wage claims are not indefinite, so act promptly. Finally, never rely on verbal assurances from a foreman or site manager about what you are owed; the collective agreement text and your written contract are the only authoritative sources.

Getting your tillaeg and overtime right is not bureaucratic pedantry. For a Polish construction worker spending weeks or months in Denmark, correctly claimed supplements can represent a meaningful share of total earnings. The rules are clear, the institutions are accessible, and the documentation requirements are manageable. Start with your contract, identify the applicable agreement, track your hours meticulously, and do not hesitate to ask for help from the union or the relevant authority when something does not add up.