Understanding Sick Leave Rules in Denmark 2026

Kristian Ole Rørbye

Updated July 22, 2026

Worried about losing pay or your job when you call in sick? This guide explains what you must do on day one, who pays, what paperwork to expect, and your legal protections as an employee in Denmark.

Key facts

Most employers pay full salary for the first 30 days of illness – check your contract or collective agreement.
Municipal sickness benefits can pay after employer-paid period; standard guidance often cites 22 weeks but rules vary.
Notify employer immediately (preferably before your shift starts). Keep a written record of the notification.
Doctors’ certificates may be required for longer absences; costs in the first 30 days are usually covered by the employer if they request it.

The Basic Right to Sick Leave

Denmark’s labour system protects employees who cannot work for health reasons. Your right to take sick leave exists regardless of whether you work full-time, part-time or on a fixed-term contract – but how pay and formalities work depends on your contract, collective agreement and local municipality rules.

What Constitutes the Right to Sick Leave?

Sick leave covers inability to perform work due to physical or mental illness. If a medical condition prevents you from working (including certified mental health issues), you have the right to take sick leave and to be treated fairly at work while you recover.

Conditions for Taking Sick Leave

Immediate notification: Tell your employer as soon as possible on the first day you cannot work. Some workplaces require notification before the start of your shift – check your contract.
Proof and trust: Denmark operates on trust, but employers can request medical documentation if they have reasonable doubt or when absences are repeated or prolonged.
Length of employment: Your entitlement to employer-paid sick salary and the specific procedures may depend on how long you have worked there and any collective agreement that covers your sector.

Notification and Documentation

Clear, timely communication preserves your right to pay and protects you against misunderstandings. Below are practical steps and what documentation you might be asked to provide.

How to Notify Your Employer

Call (or use the company’s preferred channel) before your shift starts – follow any procedure in your contract or staff handbook.
State that you are unable to work due to illness, the expected length if known, and whether you can be reached for urgent questions.
Follow up with an email or message so you have a written record of the time and content of your notification.

The Importance of Timely Notification

Timely notice allows the employer to plan cover and reduces disputes about entitlements. Repeated late notifications or unexplained no-shows can be treated as misconduct, so keep communication clear even when you are very unwell.

Requirements for Providing Medical Documentation

Typical rules regarding medical certificates:

Short absences: Employers generally do not request a doctor’s note for a single-day absence, unless there is a pattern of repeated short-term sick days.
Longer absences: Employers commonly ask for a medical certificate when sickness continues past a set period (often specified in company policy or collective agreements).
Costs for certificates: If an employer requests a certificate within the first 30 days, they normally pay for it. After that, practice varies.
Privacy: A doctor’s note should confirm your inability to work, not your full medical history.

Duration and Pay during Sick Leave

How long you can be absent and how much you are paid depends on employer rules, collective agreements, and municipal social benefits for extended illness.

Duration of Sick Leave

There is no single universal maximum for how long you can be on sick leave. In practice:

Employers frequently pay salary for the initial sick period (commonly up to 30 days) – check your contract or collective agreement.
If you cannot return to work after the employer-paid period, the local municipality may assess you for sickness benefits. Municipal rules and maximum benefit periods can change; contact your municipality for the precise current limits.

Pay during Sick Leave

Who pays you depends on several layers:

Your employer: Many employers pay full salary for a limited period. Some collective agreements provide better terms.
Collective agreements: Unions and employer organisations negotiate specific sick pay rules – members should check the relevant agreement.
Municipality: If employer-paid sick pay ends and you are still unable to work, you may apply to your municipality for sickness benefits. The amount is calculated case by case.

The Role of the Employer and the Local Municipality

Employers must follow contract and legal obligations: pay agreed sick salary, document the case, and attempt reasonable reintegration measures. Municipalities administer sickness benefits, assess work capacity and may offer vocational support or rehabilitation programs if long-term absence continues.

Sick Leave Rules in Denmark: Special Cases

Certain life stages and contract situations change how sick leave works. Below are the common special cases relevant to expats and local employees.

Sick Leave during the Probationary Period

You still have the right to sick leave during probation. However, probationary employment often makes dismissals easier for the employer. If you suspect dismissal was solely because you were ill, seek advice from HR, a union or legal counsel promptly.

Sick Leave during Maternity or Paternity Leave

If you fall ill while on parental leave, the sick period normally runs at the same time as parental leave – it does not automatically extend the parental leave period. Compensation during this time follows the rules for parental benefits rather than standard sick pay. For details on parental benefits and interaction with sick leave see guidance on parental leave.

Chronic Illnesses or Longer-Term Health Issues

Chronic conditions require planning with your employer and municipal case workers:

Expect a dialogue about workplace adjustments (reduced hours, changed duties, ergonomic changes).
Municipalities and job centres can arrange rehabilitation or gradual return-to-work programs.
Discrimination because of a chronic illness is illegal; document communications and seek union or legal help if needed.

Returning to Work After Sick Leave

Returning safely helps protect your health and your job. Use a planned approach: medical clearance if required, a clear agreement with your employer on duties/hours, and documentation of any adjustments.

Steps and Processes for Rejoining

Confirm fitness for work with your GP if requested or if the job has health risks.
Tell your employer your intended return date and any limitations.
Agree on a phased return if needed – reduced hours, temporary duties or work-from-home arrangements.

Rights of the Employee During the Transition Phase

You can request reasonable adjustments and must be protected from unfavourable treatment during reintegration. Keep medical advice and agreed return plans in writing.

Termination Due to Prolonged Sickness

Termination is a last resort. An employer must show that they have explored reasonable accommodations and that the absence makes continued employment impossible. Proper documentation and attempts to reintegrate you should exist in the employer’s records. If termination occurs, seek immediate advice from a union or legal counsel.

Protection Against Unfair Dismissal

Denmark balances employers’ freedom to manage operations with strong employee protections. Illness alone is generally not valid grounds for dismissal unless the employer can justify it with clear evidence about the impossibility of continued employment.

The Grounds for Fair Dismissal

Legitimate reasons include business-related redundancies, serious misconduct, or proven and lasting inability to perform core job tasks even after reasonable adjustments.

Illness and Dismissal: What’s Protected?

Short-term sickness is normally protected. For long-term sickness, employers must show attempts to accommodate you and that dismissal is necessary. Keep all medical documentation and communications to support your case if this situation arises.

Legal Recourse in Cases of Unfair Dismissal

Start with mediation if available. Unions can represent members and often handle cases with employers. If mediation fails, you can bring a legal claim – remedies can include compensation. For non-union members, seek legal advice quickly because time limits can apply.

Additional Resources

Your HR department – ask for the written sick leave policy and how to document absences.
Trade unions – support, representation and collective agreement information. See your union if you are a member.
Local municipality and job centre – for sickness benefits, rehabilitation and return-to-work plans.
The Danish Working Environment Authority (Arbejdstilsynet) – workplace guidance and helplines. External: Arbejdstilsynet.
For newcomers, check rules affecting residency and work status if you are on a visa or permit – see guidance on work permit in Denmark.
How sick leave interacts with holiday rules – read about annual leave rules if you are ill while on vacation.
General employee leave entitlements and work-life balance information: employee leave entitlement.

Keep a simple log of every sick-day notification (date, time, who you told and how). This helps if a dispute arises about timeliness or pay.

If you fail to notify your employer according to company policy (for example, not calling before your shift), you risk losing sick pay for that period – check your contract and act quickly if you missed the required procedure.

FAQs

Do I need to provide a medical certificate for a one-day sick leave?

No – for a single short absence most employers do not demand a doctor’s note. If short absences recur, an employer may ask for documentation.

Can my employer refuse to grant sick leave?

An employer cannot lawfully refuse your right to be absent due to genuine illness. They can, however, request proof and follow disciplinary rules for failure to follow notification procedures.

What happens if I fall sick during my vacation?

If a doctor certifies you were ill during holiday, you can usually have those days reclassified as sick leave rather than vacation days – notify your employer and submit the medical certificate promptly. See also the rules on annual leave rules.

Can I take sick leave for mental health reasons?

Yes. Mental health conditions that prevent you from working are treated the same as physical illness. Confidentiality rules apply; a doctor’s note should confirm inability to work without disclosing detailed diagnoses.

How do I approach long-term sick leave due to chronic conditions?

Start early: talk to your GP, employer and municipality about adjustments and benefits. Ask for a phased return plan and get written agreements for changes to duties or hours.

Are part-time or temporary workers entitled to sick leave?

Yes – you have the right to sick leave. Pay and procedural details depend on your contract, hours worked and any collective agreement covering your job.

If I’m pregnant and face health complications, can I take sick leave?

Pregnancy-related health problems can justify sick leave. If you are on leave, also check how this interacts with parental leave rules at parental leave. Keep medical notes and inform HR early so suitable adjustments are made.

Do this today

Notify your employer in writing for any current illness, keep a copy, and check your contract or union agreement for sick pay terms – then contact your local municipality if the absence looks likely to extend beyond the employer-paid period.