Norway BSU Calculator 2026 (Home Savings for Under-34s)

BSU (boligsparing for ungdom, young people's housing savings) is Norway's tax-favoured savings account for a first home. You can deposit up to NOK 27,500 a year and NOK 300,000 in total, and you get 10%of each year's deposit as a deduction from your tax, up to NOK 2,750 a year. It runs up to and including the year you turn 33. This calculator shows the deduction, how many years you can save, and the balance on the account when saving stops, with tax on the interest taken into account.

How BSU works in 2026

• Up to NOK 27,500 a year and NOK 300,000 in total. Interest does not count towards the total.
• The deduction is 10% of what you deposit, taken off the tax you pay, so it cannot be larger than your income tax and national insurance contributions combined.
• You can save up to and including the year you turn 33.
• You get no deduction for a year in which you own a home on 31 December.
• The bank must report the deposit to the Tax Administration before the end of the year.

Deduction by yearly deposit

Assumes you pay at least that much tax in the year.

Worked example: saving the maximum from age 22

You are 22, deposit NOK 27,500 a year and earn 5% interest. Because the deposits add up to NOK 300,000 after 11 deposits, you can save for 11 years. You receive NOK 30,000 in tax deductions. The account then holds NOK 366,458, of which NOK 66,458 is interest after tax at 22%. The last deposit is only NOK 25,000, because that is all that is left before the NOK 300,000 limit, so the last deduction is NOK 2,500. In the first year the deduction and the interest after tax together are worth 13.9% of your deposit. The balance ends above NOK 300,000 because interest is not counted towards the limit.

If you start late, or pay little tax

The age limit can be tighter than the NOK 300,000 limit. Someone who starts at 30 with the same plan can save for only 4 years, deposits NOK 110,000, gets NOK 11,000 in deductions and ends with NOK 116,604. And a student who pays only NOK 1,200 in tax gets NOK 1,200 for a NOK 27,500 deposit, instead of NOK 2,750. If you have no income yet, depositing earlier than you must only earns interest, not a deduction.

Common mistakes

• Depositing too late in the year. The bank must report the deposit before the year ends, so leave time in December for the payment to be registered.
• Buying a home without checking the date.If you own a home on 31 December you lose that year's deduction, even if you deposited the money before you bought it. Both direct and indirect ownership count.
• Using the money for something else. Money spent on anything but your own permanent home triggers an addition to your assessed tax equal to the tax you were given a deduction for.
• Depositing more than the limits. The excess is returned and gives no extra deduction.

When you are ready to buy, see how much a bank will lend you with the mortgage borrowing calculator, add up the one-off costs on the cost of buying a home in Norway page, and see how your salary is taxed in the Norway income tax calculator.

What this calculator does not cover

It uses the interest rate you type in and assumes the rate stays the same and that interest is added at the start of each year. It does not compare BSU with investment funds, it does not check whether you own a home in each year, and it does not model the tax on interest for anything other than the standard 22% rate. If you are a newcomer, or own property abroad, it cannot tell whether you qualify. The deduction is granted by the Tax Administration based on what your bank reports.