UDK 155 Early Pension: Report Changes (Tidlig Pension)

What is UDK 155 — Early pension: report changes?

UDK 155 is the form Udbetaling Danmark uses for changes that can affect the payment of early pension (tidlig pension). Its guidance explains that when you are paid early pension you have a duty to report (oplysningspligt): you must tell Udbetaling Danmark straight away about changes that can matter for the payment. If you don't, or if the information is wrong or incomplete, you may have to pay back some or all of the pension.

The form has five questions. Have you had income from personal work that isn't in the Danish income register, such as fees, B income or pay from abroad? Do you run your own business abroad? Have you been paid holiday pay? Are you planning a stay of more than two months outside the EU/EEA and Switzerland? Are you planning to move to another country? For each yes, it asks for the amounts, currencies and dates.

FileIt guides you through it in English with the Danish terms, types your answers into Udbetaling Danmark's own PDF, including names and foreign addresses with letters such as ł, ș or ø, and saves it in your vault. The form says you can send it with Digital Post from borger.dk or by post. FileIt never sends anything to Udbetaling Danmark.

Who fills it: Someone who is paid Danish early pension (tidlig pension)
Given to: Udbetaling Danmark, Tidlig Pension — Digital Post from borger.dk, or post to Kongens Vænge 8, 3400 Hillerød
When: Straight away when something changes; for income, the guidance says by the 15th of the following month
Signatures: You date and sign it
Edition: UDK 155, Version 12/25
Pages: 2 (1 to fill in, 1 of guidance)

Who needs to fill out UDK 155 — Early pension: report changes?

People paid early pension who earn fees, B income or pay from abroad that doesn't show in the Danish income register.
Early pensioners who run a business abroad, or who are a co-working spouse in one and receive income for taxation.
Early pensioners who take holiday and are paid holiday pay (feriegodtgørelse).
Early pensioners planning a stay of more than two months outside the EU/EEA and Switzerland, or a move to another country.

When to use UDK 155 — Early pension: report changes

As soon as you know about a change. The guidance says you must tell Udbetaling Danmark straight away.
For fees, B income, pay from abroad or income from self-employment abroad: the guidance says that if Udbetaling Danmark doesn't have the information by the 15th of the following month, payment stops from the 1st of that month, and can restart at the earliest from the 1st of the month after the information arrives.
Before you leave on a stay of more than two months outside the EU/EEA and Switzerland. Stays in Greenland and the Faroe Islands don't count.
When you plan to move abroad. The guidance says you must tell Udbetaling Danmark by the 15th of the following month.

What you need before you start

Your name, CPR number, address and phone number.
For income not in the register: the amount before tax, the currency and the period it covers.
For self-employment abroad: the expected yearly income from the business, its currency and the year.
For holiday pay: the amount in Danish kroner, whether it is before or after tax, and your first and last holiday day.
For a stay abroad: the country, and the expected departure and return dates.
For a move: the country, the date and your new address.

What’s on UDK 155 — Early pension: report changes

The 2025 edition has 2 pages. FileIt asks for it in 7 parts, and it is signed by Pensioner:

Your details (Dine oplysninger)Pensioner
Fees, B income and pay from abroad (Honorarer, B-indkomst og udenlandsk lønindtægt)Pensioner
Self-employment abroad (Selvstændig virksomhed i udlandet)Pensioner
Holiday pay (Feriegodtgørelse)Pensioner
Temporary stay abroad (Midlertidigt ophold i udlandet)Pensioner
Moving to another country (Flytning til et andet land)Pensioner
Date and signature (Dato og underskrift)Pensioner

How to fill out UDK 155 — Early pension: report changes, step by step

1 Dine oplysninger (your details)

Your name, CPR number, address, phone number, and the country if your address is outside Denmark. The CPR number goes digit by digit into the ten boxes, six before the printed dash and four after.

2 Honorarer, B-indkomst og udenlandsk lønindtægt (fees, B income and pay from abroad)

Answer whether you have had income from personal work that isn't in the income register. If yes, give the income before tax in the local currency, the currency, and the period from and to.

3 Selvstændig virksomhed i udlandet (self-employment abroad)

Answer whether you run a business abroad, also as a co-working spouse who receives income for taxation. If yes, give the expected yearly income from running the business, its currency and the year.

4 Feriegodtgørelse (holiday pay)

Answer whether you have been paid holiday pay. If yes, give the amount in Danish kroner, tick whether it is before or after tax (the guidance says you can choose), and give your first and last holiday day.

5 Midlertidigt ophold i udlandet (temporary stay abroad)

Answer whether you plan a stay of more than two months in a country outside the EU/EEA and Switzerland. If yes, give the country and the expected departure and return dates. When you are back, the guidance asks you to tell Udbetaling Danmark the actual return date.

6 Flytning til et andet land (moving abroad)

Answer whether you plan to move to another country. If yes, give the country, the date and your new address.

7 Dato og underskrift (date and signature)

Date and sign the form, then send it with Digital Post from borger.dk or by post.

Common mistakes to avoid

Waiting with the information. Payment stops if Udbetaling Danmark doesn't have income details by the 15th of the following month.
Giving foreign income in Danish kroner. The guidance asks for the amount in the local currency.
Forgetting to tell Udbetaling Danmark the actual return date after a long trip, or a new expected date if the trip gets longer than two months while you are away.
Moving outside the EU/EEA, Switzerland, the United Kingdom or Turkey without checking. The guidance says you have no right to early pension while you live elsewhere.

After you fill it out

Check the PDF in your FileIt vault, date and sign it, and send it to Udbetaling Danmark, Tidlig Pension, with Digital Post from borger.dk or by post to Kongens Vænge 8, 3400 Hillerød.

If you live in the EU/EEA, Switzerland, the United Kingdom or Turkey, the guidance says you must confirm your current address every month, by the 15th of the following month.

Keep the filled form in your FileIt vault with any letters from Udbetaling Danmark.

Fill out UDK 155 — Early pension: report changes online with FileIt

Pick the person. Choose someone from People and FileIt fills in their name, date of birth, address and other details it already knows.
Answer plain-language questions. One part of the form at a time, with the official help text beside each question — 30 fields in all. Your answers save as you go.
Check the live preview. Watch your answers land on the real Udbetaling Danmark (UDK), Tidlig Pension form, and let FileIt do any worksheet arithmetic.
Generate the official PDF. FileIt prints your answers into the agency’s own PDF and files it in that person’s folder in your vault. Sign it, or send it for e-signature.

FileIt fills the form — it never files or submits anything for you. Deliver the finished form to whoever asked for it, the way the form’s instructions say.

Start UDK 155 — Early pension: report changes now — it’s free

UDK 155 — Early pension: report changes: frequently asked questions

What is UDK 155?

It is Udbetaling Danmark's form for people paid early pension (tidlig pension) to report changes that can affect the payment: extra income, self-employment abroad, holiday pay, long stays outside the EU/EEA and moves abroad.

Can I fill in UDK 155 online?

Yes. FileIt lets you fill it in online free, in English with the Danish terms, and prints your answers into the official PDF saved in your vault. You then send it yourself with Digital Post from borger.dk or by post.

What happens if I don't report a change?

The guidance says you may have to pay back some or all of your early pension, also if you give wrong or incomplete information.

Do I need to report a holiday in Spain?

The stay question is only about stays of more than two months outside the EU/EEA and Switzerland. Holiday pay is a separate question: if you are paid holiday pay, report it.

Is this the form to apply for early pension?

No. You apply for the right to early pension on UDK 151 and for payment on UDK 153. UDK 155 is for changes once you are being paid.

Official sources

Blank form (PDF), published by Udbetaling Danmark (UDK), Tidlig Pension: https://www.klxml.dk/KLB/Blanket/Gaelder/udk155.pdf
Official instructions and guidance: https://www.borger.dk/pension-og-efterloen/tidlig-pension
Edition shown on this page: UDK 155, Version 12/25 (checked 2026-10-25).

FileIt is not affiliated with or endorsed by Udbetaling Danmark (UDK), Tidlig Pension or any government. This page explains the form in general terms and is not legal, tax or immigration advice. Always read the official instructions, and check that you are using the edition the recipient accepts. Page last reviewed 2026-10-25.