Tax return 2025:
Tips and advice on deductions
New loan, refinanced or sold property? See our tips and advice
about what you should check on your tax return.
You can lose thousands by not checking your tax return.
Also check the tax calendar further down the page.
March 18, 2026
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What's new in the tax return for 2025?
- Among the most significant changes is the increase in the personal allowance, which is now NOK 108,550 (88,250 in 2024). This is the amount you can earn without paying tax.
- New share statement: Shares (excluding Aksjesparekonto/ASK) will be moved to a new, combined overview showing Norwegian shares, equity certificates and foreign shares registered on the Oslo Stock Exchange.
- Pre-filled travel deduction: The travel deduction amount can be pre-filled based on last year’s tax return.
- Increased control of deductions: Focus on control of deductions, especially domestic interest deductions and travel deductions.
- Refinancing deduction: Set-up fees and loan refinancing costs must be pre-populated.
- Parental deduction: Check that deductions for care of children under the age of 12 are correct, max £25,000 for one child.
Changes 3 years back: You can still change and submit information up to 3 years back in time if you discover errors
It is also important to note that The Norwegian Tax Administration has improved its digital tools to make it easier for you to check and change the information in your tax return.
Checklist: Deductions you must not forget
There are many deductions you may be entitled to, and it’s crucial to check that everything is correct. Here’s a checklist of the most important deductions:
Deduction for interest on home loans and refinancing
If you have a mortgage, you can deduct 22% of the interest you have paid. One example is a deduction for the costs of establishing or refinancing of loans. Here you are entitled to a deduction for the costs of taking out a new mortgage or refinancing an existing loan . of an existing loan.
You can get a deduction for what you have paid in interest on debt, interest on late payments and/or interest on reasonable loans from your employer.
Travel allowance and commuting
If you have a long commute to work, you may be entitled to a travel deduction. This applies both if you use your own car or public transport. The deduction is calculated based on the distance between your home and workplace, and you must document your travel expenses.
Personal allowance and other fixed items
The personal allowance is NOK 108,550 for the income year 2025 and will be increased to NOK 114,540 for 2026. Make sure that this amount is correctly registered in your tax return. In addition, there may be other fixed items that can give you a deduction, such as expenses for a trade union and work tools.
How to submit your tax return
To make changes to your tax return, you must log in to Skatteetaten.no. Once you’re logged in, you can review the pre-completed information. If you find any errors, you can easily edit them. When everything looks good, you can submit your tax return directly from the online portal. Remember that the deadline for submission is 30. April.
The property's tax value
The property’s tax value, also known as the assessment value, is the taxable value of your property.
For the home you live in, the tax value must be 25 percent of the market value for homes worth less than NOK 10 million. This value is based on the size of the property and the current property values in the local area, and errors may occur.
In the case of homes with a value of more than NOK 10 million, the value that exceeds this limit is taxed at 70 percent of the actual value. This may be one of the reasons why the taxable value has increased. Calculating the tax value of your home can be foundhere.
Parental deduction
One child: 25 000
Supplement for children beyond the first: 15,000 per child
If you have costs related to childcare for children aged 11 or younger at the end of the income year, or for children aged 12 or older with special care needs, you may be entitled to a deduction for these expenses. In addition, you may also be entitled to a deduction for expenses for after-school programs that function as a fully-fledged alternative to the after-school program in primary school.
Are all your properties listed
Check that your primary residence, rental property and cabin are listed.
Deduction for taxable rental property
If you own a home or apartment that you rent out and you tax the rental income, you have the right to deduct maintenance expenses related to the rental unit, as well as other expenses related to the rental relationship.
As a rule, all costs you incur in connection with the rental can be claimed as a deduction.
Examples of costs:
- Municipal fees
- Insurance for the rental unit
- Paid property tax on the rental property
- Costs for electricity, heating, cleaning (if the tenant does not pay for this)
- Expenses for necessary maintenance
- Costs in connection with driving to the rental property
Tax on short-term rental (AirBnB)
Rental income from short-term letting is tax-free up to NOK 15,000, provided that the letting lasts for less than 30 days. This 30-day limit applies to each individual rental relationship. If the income exceeds NOK 15,000, 85 percent of the amount will be considered taxable income.
Example:
- Rental income from Airbnb: NOK 20,000
- Free amount: NOK 15,000
- Remaining amount: NOK 5,000
- Taxable amount: 5,000 x 85% = NOK 4,250
- Tax rate: 22%
- Total tax: 4,250 x 22% = NOK 935
Skattekalender 2026
| Dato | Hendelse | Beskrivelse |
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Deductions for mortgages and refinancing:
You can claim tax deductions for:
- Costs of raising loans, including set-up fees.
- Costs in connection with refinancing of loans in order to obtain a lower interest rate, including costs for an appraiser.
- Fees to housing companies related to special repayment of IN loans (joint debt with individual repayment)
- interest on loans from the employer and from private lenders (e.g. family members)
- interest paid on late payment of interest on debt, and interest and costs of credit purchases
- interest on loans abroad
If you change, delete or add information about interest on debt, you must be able to document this with an annual statement or confirmation from the credit institution. You don’t need to enclose the confirmation, but you must be able to show it if the tax authorities request it.
You cannot claim tax deductions for:
- Interest that is due but which you have not paid by the end of the year in which it is due (unless it is part of a bookkeeping activity). Such interest is not deductible until the year in which you pay it. For student loans in Lånekassen, deductions are also only granted for interest that has been paid.
- debt collection fees and costs in connection with debt collection.
- interest surcharge on residual tax (does not apply to interest on arrears).
Distribution of interest on debt:
Distribution of debt interest between spouses/cohabitants/co-borrowers
The loan is only reported on one of you, even if you have the loan together with someone else. The distribution and how this can be done depends on whether you are married or not. The distribution must be repeated every year, and both of you must actively make the change. A change by one of you does NOT automatically result in a change by the other borrower.
The total amount must be the same regardless. In other words, if the interest on the debt is reduced by NOK 8,000 for one, it must increase by NOK 8,000 for the other. You must change or add information about the lender, debt, debt interest and the reason for the change. Both borrowers are entitled to a 22 percent deduction of what you have paid in debt interest.
Spouses with joint loans
When you are married and have loans together, the spouses can distribute the deduction for the debt and interest on the debt between themselves as they see fit. It doesn’t matter what has been reported by the bank or what the actual relationship of responsibility is between the spouses. It is also irrelevant which of you has actually paid the interest.
Cohabitants or co-borrowers with joint loans
When cohabitants/co-borrowers have a loan together and the bank has reported the amount for only one of them, both must amend their tax returns. They must allocate the deduction for the debt and the interest on the debt according to the actual relationship of responsibility. In this case, it’s also irrelevant which of the cohabitants/co-borrowers has actually paid the interest.
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