The Norwegian tax return 2025: Pre-filled, but not problem-free

Norwegian tax return 2025 – April 30 deadline
The Norwegian tax return is pre‑filled – but not final. Learn what to check, deadlines, refunds, penalties and how to correct past tax returns in this practical Q&A.

The Norwegian tax return is pre‑filled – but not final. Learn what to check, deadlines, refunds, penalties and how to correct past tax returns in this practical Q&A.
The Norwegian tax return season has started

The first Norwegian tax returns were released on 9 March. Tax returns are sent out in batches until 30 March to 5.3 million employees, pensioners and sole proprietors.

Although the tax return is pre‑filled, it is not final. It is a starting point that must be reviewed, corrected if necessary, and submitted before the 30 April 2026 deadline.

At Nomadexus, our experience from reviewing the 2024 personal tax returns clearly demonstrates the value of a thorough review. On average, we saved our clients NOK 34,932 per submitted personal tax return.

That alone is a strong reason to take the tax return seriously – and not assume that “pre‑filled” means “correct”.

Below, we answer the most common questions individuals have about the Norwegian tax return and what you should be aware of this year.

Questions and Answers

What is the Norwegian tax return (skattemelding)?
The Norwegian tax return is an annual overview of your income, deductions, assets and liabilities for the previous income year. It forms the basis for your tax assessment and determines whether you are entitled to a tax refund or will receive additional tax to pay.

This article concerns personal taxation, meaning individuals such as employees, pensioners and others who are personally taxable to Norway.

If you are taxed under the PAYE scheme, you are generally exempt from submitting a tax return.
When will I receive my tax return?
Tax returns are sent out in batches between 9 March and 30 March 2026.

The Norwegian Tax Administration

You will receive an email or SMS from the Norwegian Tax Administration when your tax return is ready.

Until you receive this notification, your tax return is not available, and there is no need to log in.

If the tax return is pre‑filled, do I still need to check it?
Yes – without exception.

The tax return is pre‑filled using information collected from employers, banks, pension providers and other third parties. While this makes the process easier, it does not guarantee that all information is correct or complete.

You are personally responsible for checking that:

all income is correctly reported
deductions you are entitled to are included
assets and liabilities are correct

What do people most often need to change or add?
Although the Norwegian tax return is pre‑filled, experience shows that certain areas deserve extra attention. This is particularly relevant for individuals with international work patterns or financial ties outside Norway.

Common areas that often require review include:

income or assets from abroad,
cross‑border or offshore work arrangements,
periods spent outside Norway during the income year, and
interest on loans or mortgages held outside Norway
Deductions are a frequent source of uncertainty, as several deductions must be actively claimed and are not automatically included in the tax return.

Taking the time to review these areas can help reduce the risk of paying too much tax and ensure that the tax return is complete and accurate.

What is the deadline for submitting the 2025 tax return?
For employees and pensioners (personal taxpayers), the deadline is: 30 April 2026.

For self‑employed individuals, the ordinary deadline is 31 May. As this falls on a Sunday in 2026, the deadline is extended to 1 June 2026.

How many people receive a tax refund or additional tax?
Preliminary figures from the Tax Administration indicate that:

Around 2.7 million individuals are expected to receive a tax refund, averaging NOK 15,200 per person
Approximately 1.2 million individuals are expected to receive additional tax, averaging NOK 43,200 per person
These figures are only indicative. The final result is confirmed after the tax return has been reviewed, submitted and processed.

When will I receive my tax refund?
If you are entitled to a refund, the amount will be paid once your tax assessment (skatteoppgjør) has been completed.

Processing time varies:

Most individuals receive their tax assessment before the summer
Some cases take longer, for example if documentation is missing or the case is selected for review
All tax assessments are finalised no later than 1 December
If you do not submit your tax return by the deadline, your tax assessment will normally not be issued until June or later.

What are the consequences of submitting an incomplete or incorrect tax return?
The Norwegian tax system is based on self‑assessment, which means that you are personally responsible for ensuring that the information reported in your tax return is correct and complete. If income is missing or reported incorrectly, the Norwegian Tax Administration may adjust your tax assessment once the issue is identified.

This may result in additional tax to pay, interest on unpaid tax, or delays in the tax assessment. If the Norwegian Tax Administration identifies incorrect or incomplete information before you correct it yourself, additional tax (penalty tax) may also be imposed under the applicable rules.

For this reason, it is generally advisable to act as soon as you become aware of an error. The good news is that discovering a mistake does not necessarily mean it is too late to correct it.

What if I discover that I should have made changes for previous income years?
If you discover that your Norwegian tax return 2022, 2023 and 2024 contains errors or missing information, it is usually still possible to make corrections.

As a general rule, you can correct Norwegian personal tax returns for up to three years back, even if the tax return has already been processed and a tax assessment has been issued. Corrections are submitted digitally through the Norwegian Tax Administration’s portal.

For the current tax year, this means that:

The 2022 tax return can be corrected until 30 April 2026
The 2023 tax return can be corrected until 30 April 2027
The 2024 tax return can be corrected until 30 April 2028
Tax returns from previous years

If a correction results in a change to your tax position, the Norwegian Tax Administration will issue an updated tax assessment. If the correction does not affect the tax calculation, a new assessment will normally not be issued.

Correcting previous tax returns can be particularly relevant where income, deductions or tax residency were not assessed correctly at the time. Identifying and correcting such issues may help ensure that your tax position is accurate – even after the original filing deadline has passed.

How can Nomadexus assist?

Reviewing a Norwegian personal tax return can be straightforward for some, but more complex for others – particularly where there is foreign income or assets, cross‑border work, offshore activity, or changes in tax residence or personal circumstances.

Nomadexus assists individuals with personal taxation by reviewing and correcting Norwegian tax returns, identifying missing deductions and reporting obligations, and ensuring that the tax return is both accurate and compliant. Where relevant, we also handle dialogue with the Norwegian Tax Administration on behalf of our clients.

Our goal is to ensure that you pay the correct amount of tax – no more and no less – and to help reduce the risk of additional tax, delays or unnecessary follow‑up from the authorities.

If you would like assistance with your Norwegian tax return, or simply want a professional review before submission, you are welcome to contact us.

Got questions? Get in touch today!

Tax adminstration