Payment deadlines for tax assessment

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If you received your tax assessment in June, the first payment deadline is 20 August.

Underpaid tax of more than 1000 NOK


If your underpaid tax exceeds NOK 1,000, it will be split into two instalments.

This means:

  • If you received your tax assessment on 22 June, the payment deadline for the first instalment is 20 August and the second instalment is due 24 September.
  • If you received your tax assessment on 2 August or later, the deadline for the first instalment is three weeks after the date your tax assessment was ready, and the second instalment is due eight weeks after the tax assessment was ready.
  • When the payment deadline is on a Saturday or Sunday, you can pay the following Monday (first working day after the deadline).
  • If you do not pay by the deadline for the first instalment, the second instalment will also be considered as overdue at the same time as the first instalment. If you need assistance, you should contact the tax collector in your municipality.

Underpaid tax of less than 1000 NOK


The deadline for paying underpaid tax of less than 1000 NOK is three weeks after your tax settlement was ready, but no earlier than 20 August.

This means:

  • If you received your tax assessment on 22 June, the payment deadline is 20 August.
  • If you received your tax assessment on 2 August or later, the payment deadline is three weeks after the date your tax assessment was ready.

How to pay?

As a user of electronic services, you will receive in Altinn an invoice for unpaid tax and other payment information. This will be sent with sufficient time before the payment deadline. If you are not registered to use electronic services, you will receive an invoice, including payment information, in the post. 

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