Hiring Romanian Employees in Denmark: Requirements, Documentation and Compliance Explained

Hiring Romanian employees in Denmark is in many ways simpler than hiring non‑EU nationals, but it is far from a formality. Danish employers must navigate EU free movement rules, Danish registration procedures, tax and social security rules, and strict labour law standards. The process is manageable, but only if you understand the sequence of steps, the correct documentation and the compliance risks.

This article focuses on what Danish companies and foreign businesses operating in Denmark need to know when they hire Romanian nationals to work on Danish territory.

EU Free Movement and What It Means for Romanian Workers

Romania is part of the European Union, and Romanian citizens benefit from the EU principle of free movement of workers. For Danish employers this has one critical practical effect: Romanian employees do not need a Danish work permit in the way that non‑EU workers do. As long as they have a valid Romanian passport or ID card, they have the right to travel to Denmark and seek or take up work.

However, “no work permit” does not mean “no rules.” After more than three months in Denmark, an EU citizen must have a legal basis for staying, such as employment, and must obtain an EU residence document (often called an EU registration certificate) from the Danish Agency for International Recruitment and Integration (SIRI). For employers, this means that employment contracts, start dates and documentation of real work are crucial pieces in the compliance puzzle.

Direct Employment Versus Posting: Two Different Legal Frameworks

The first strategic decision is whether the Romanian person will be employed directly by a Danish company or posted to Denmark by a foreign (for example Romanian) company. The legal consequences of these two models differ significantly.

In direct employment, the Danish company is the employer. Danish employment law, Danish tax rules and Danish social security rules normally apply from day one. This model simplifies some aspects (for example, no A1 certificate is required), but it gives the Danish company full responsibility for payroll, taxes and working conditions.

In a posting scenario, the Romanian worker remains employed by a company established in another EU country and is temporarily sent to Denmark to perform services. Then, EU posting rules apply: the host country's core working conditions must be respected, but social security may remain in the home country if an A1 certificate is issued. This can bring cost advantages but also more complex compliance, including RUT registration and documentation of genuine posting.

As a rule of thumb, if the work is of longer duration, integrated in the Danish organisation and controlled daily by Danish management, direct Danish employment is often the more robust option from a compliance perspective. Posting is better suited to genuinely temporary, project‑based assignments where the employment relationship clearly remains centred in the home country.

Step-by-Step: Hiring a Romanian Employee Directly in Denmark

When a Danish business decides to hire a Romanian citizen as an employee, the process can be broken down into a series of practical steps:

1. Clarify position and contract terms

Define the job description, place of work, expected working hours, salary level and whether collective agreements apply. Check sectoral agreements (for example in construction, cleaning, hospitality) to ensure your wage offer meets Danish standards, as underpayment can trigger claims and reputational risk.

2. Verify identity and EU nationality

Ask for a valid Romanian passport or national ID card. Keep a copy in your HR files in line with data protection rules. This is important not only for KYC purposes, but to document that the person is actually an EU citizen with free movement rights.

3. Prepare an employment contract

Under Danish law, employees working at least an average of eight hours per week for more than one month must receive written employment terms. Include job title, workplace, salary, working hours, probation period, termination rules, holiday rights, and reference to any collective agreement.

Assist with obtaining the EU residence document (if stay exceeds three months)

If the employee will stay and work in Denmark for more than three months, employment is one of the grounds for obtaining an EU registration certificate from SIRI. The employee usually books an appointment and brings the employment contract and ID. While the obligation formally rests with the employee, in practice, many employers assist with information and timing to avoid gaps.

5. Register the employee with the Danish Civil Registration System (CPR)

Once the EU registration document is granted (or if the stay is short but registration is still possible), the Romanian employee must obtain a CPR number from the local Citizen Service (borgerservice). The CPR number is essential: without it, tax registration, NemKonto, e‑Boks and access to health services are complicated or impossible.

6. Register for tax (Skattestyrelsen) and request a tax card

The employee must register with the Danish Tax Agency and obtain a tax card. As the employer, you cannot withhold tax correctly until the tax card is in place. Until then, you may be required to withhold a higher preliminary tax rate. In many cases, this can be done digitally by the employee using MitID, which again requires the CPR number.

7. Set up payroll and social security contributions

Set up the employee in your payroll system with the correct tax card, labour market contributions (AM-bidrag), ATP contributions and any pension contributions required by collective agreements or standard practice in your industry. Denmark usually applies the “payroll principle”: income is taxed where the work is physically performed.

8. Provide mandatory workplace information and policies

Inform the employee about working hours, breaks, health and safety rules, and any internal regulations. If language is a barrier, consider providing summaries in English or Romanian to ensure understanding, especially of safety procedures.

This sequence may vary slightly depending on the municipality and whether the stay is clearly short‑term, but following it step by step usually keeps you on the safe side.

Taxation of Romanian Workers in Denmark

Taxation is one of the sensitive points in cross‑border employment. In typical direct employment, Romanian workers are taxed in Denmark on salary earned for work done in Denmark. Romania and Denmark have a double taxation treaty, which aims to avoid income being taxed twice. Usually, the Danish tax paid can be credited or taken into account in Romania if the employee remains tax resident there, but many workers become Danish tax residents once they move and stay for a longer period.

For employers, the key compliance obligations are to:

- Withhold correct income tax and labour market contributions from salary.

- Report salary and tax withheld to the Danish Tax Agency via e‑income systems.

- Provide annual income information that the employee can use for their tax assessment notice.

Failure to withhold and report correctly can lead to assessments, penalties and interest. Using a local payroll provider or a specialised consultant is often a cost‑effective safeguard, especially if you employ several foreign workers.

Social Security and the Role of A1 Certificates

Social security is handled separately from income tax and is often misunderstood. For directly employed Romanian staff whose normal work is in Denmark, Danish social security rules normally apply from the start, and there is no A1 certificate involved. They pay Danish social contributions via taxes and enjoy Danish social benefits in line with the applicable rules.

The A1 certificate becomes relevant in a posting context. If a Romanian company temporarily posts an employee to Denmark, and certain conditions are met, the employee can remain covered by Romanian social security for up to 24 months, extended in some cases. The Romanian institution issues an A1 certificate, which the worker must carry and the employer should keep a copy of.

For Danish companies, the pros and cons of relying on posting and A1 certificates compared to direct Danish employment are clear:

- Pros of posting: potentially lower total labour costs due to lower home‑country social contributions; continuity of home social security coverage for the worker.

- Cons of posting: complex documentation demands; risk of authorities reclassifying the situation as local employment if the posting is too long or not genuine; exposure to inspections focusing on “social dumping.”

In practice, if your business has stable, ongoing work in Denmark, relying heavily on posted workers can be riskier than building a properly registered Danish workforce.

Minimum Standards, Wages and Working Conditions

Although Denmark does not have a statutory minimum wage, pay levels are effectively set through collective agreements and labour market practice. Romanian employees must receive pay and conditions that are not significantly below those enjoyed by Danish or other EU workers performing similar tasks in Denmark. Under‑payment is a major focus area for trade unions and authorities, particularly in sectors like construction, agriculture, cleaning and transportation.

For posted Romanian workers, Danish “core conditions” must be respected, including minimum rates of pay where collective agreements are declared generally applicable, maximum working time, minimum rest periods, holiday entitlements and health and safety measures. In direct employment, general Danish labour law and any relevant collective agreements fully apply.

To compare your options:

- Direct Danish employment usually provides clearer legal footing and easier communication with unions and authorities, but can involve higher visible labour costs.

- Posting may reduce payroll costs on paper but comes with increased inspection risk, potential reputational damage if questioned, and complicated coordination between two sets of labour rules.

Many employers find that a mixed strategy-using posted workers for short projects and building a core of directly employed staff for permanent needs-strikes a better balance.

Documentation Employers Should Keep on File

Whether you employ Romanians directly or receive posted workers, documentation is crucial. In inspections, Danish authorities often request proof that workers are legally employed and that conditions meet Danish standards.

For direct Danish employment, you should keep at least:

- Copy of passport or national ID showing EU citizenship.

- Signed employment contract and any subsequent amendments.

- Records of working hours, overtime and shift schedules, especially in sectors with strict working time rules.

- Payroll records, payslips and evidence of tax and social contribution payments.

- Any correspondence about holidays, sickness absence and terminations.

For posted employees, you additionally need:

- Service contract between the foreign and Danish company describing the project and duration.

- A1 certificates issued by the competent authority in Romania.

- Posting documentation filed in the Danish Register of Foreign Service Providers (RUT).

- Evidence that basic working and wage conditions in Denmark are complied with, even if the payroll is run abroad.

Keeping this documentation for several years helps you manage retrospective audits. Digital archiving with controlled access is often the most efficient way to achieve this.

Registering Posted Romanian Workers in RUT

If your situation involves a Romanian company posting workers to Denmark to perform a service, Danish law requires the foreign service provider to register in the RUT system before the work begins. This applies to many sectors, including building and construction, cleaning, industry and agriculture.

The registration contains:

- Identification of the foreign company.

- Identification of the Danish recipient of the service.

- Location of the work site.

- Nature of the work and expected duration.

- Number of posted workers.

Not registering in RUT can trigger fines. From an employer's perspective, RUT registration is a relatively simple process but an important compliance marker: it shows that you recognise and follow Danish rules on posted workers.

Typical Compliance Risks and How to Avoid Them

Several recurring risk areas appear when Danish companies hire Romanian staff:

One common issue is misclassification. Workers are sometimes labelled as independent contractors or posted employees when in reality they function as regular employees integrated into the Danish business. Authorities may then reclassify them as employees, leading to retroactive social contributions, tax adjustments and penalties.

Another frequent problem is under‑documentation of working time and pay. Without clear records, it is difficult to prove that wages meet Danish standards and that workers receive proper overtime pay. This is especially risky in industries with rotating teams and long shifts.

A further issue is failing to coordinate tax and social security between Denmark and Romania. For example, a worker may contribute to Romanian social security based on an A1 certificate while Danish authorities consider that the criteria for posting are not met. This creates uncertainty and potential double claims.

To minimise these risks:

- Use written contracts that match the real situation and keep them updated when roles change.

- Invest in transparent time‑tracking and payroll systems.

- Seek early advice on whether a planned arrangement qualifies as posting or should be structured as local employment.

- Inform Romanian workers openly about their rights and obligations in Denmark so that misunderstandings do not lead to complaints.

Strategic Reflections for Employers

Looking at the whole picture, hiring Romanian employees in Denmark can be an effective way to access skilled and motivated labour. EU free movement lowers formal barriers, and many Romanians already have experience in Nordic working environments.

However, this flexibility comes with responsibility. Danish authorities and trade unions watch cross‑border employment closely, particularly in sectors with previous “social dumping” cases. Businesses that invest upfront in robust contracts, accurate registrations and fair wages usually face fewer inspections and maintain better relationships with staff.

When comparing options-direct hiring versus posting, in‑house payroll versus outsourcing, short‑term assignments versus long‑term integration-the most sustainable solutions tend to be those that are easiest to explain and document. If you can clearly show which rules apply, which authority is responsible and how you meet each requirement, you are likely on the right path.

FAQ

1. Do Romanian citizens need a work permit to work in Denmark?

No. As EU citizens, Romanians can work in Denmark without a traditional work permit. If they stay longer than three months, they generally need an EU residence document based on employment and then a CPR number for tax and social purposes.

2. Can a Romanian company post workers to Denmark instead of hiring them locally?

Yes, a Romanian company can post workers temporarily to Denmark under EU posting rules, provided the employment relationship remains primarily in Romania and the posting is genuinely temporary. An A1 certificate for social security and RUT registration in Denmark are usually required.

3. Do Romanian employees pay Danish tax on salaries earned in Denmark?

In most cases, yes. Salary for work performed in Denmark is taxed in Denmark, with tax withheld by the employer. The double taxation treaty between Denmark and Romania aims to prevent the same income from being fully taxed twice.

4. Are Danish wage levels mandatory for Romanian workers?

Romanian workers in Denmark must receive pay and conditions that meet Danish standards for the sector and type of work, often set by collective agreements and market practice. Paying substantially less than local levels can lead to legal claims, union action and reputational damage.