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All you need to know about the Norwegian tax report system – a-melding

Foreign enterprises with business activities in Norway must declare employment- and income information for their personnel by using the a-melding.

Do you have employees working in Norway? Foreign enterprises with business activities in Norway are obligated to declare employment and income information for personnel working in Norway. This also applies to personnel who are non-taxable to Norway. All foreign contractors must report information in the Assignment and employee register.

The system for reporting tax in Norway is called a-melding and must be submitted electronically every month.

What must be reported on the a-melding

The a-melding should contain information about the following:

Status of employment must be declared, even if the employees have not received a salary/remuneration.

An income recipients’ leave of absence must also be declared if it continues for 14 days or more. Both paid and unpaid leave of absence must be declared.

Download free guide: Individual income tax return to Norway

How to submit the a-melding

The a-melding is submitted through Altinn – the official Norwegian online portal.

Please note that the tax office has a new solution for direct registration of the a-melding. This is a simplified solution called A10. 

This solution is not yet up and running for all employments but is recommended to be used by the employers who report their employees in the Assignment register. The solution and this guidance are works in progress and will be continuously updated.  

The a-melding can be submitted in one of the following ways:

  1. An accountant, advisor, solicitor, or another representative with access to Altinn can submit the a-melding for you 
  2. You can register the a-melding directly in Altinn 
  3. You can submit the a-melding from an Altinn-integrated payroll system 
  4.  You can submit the a-melding in the new solution, called A10

Please note that you are no longer allowed to submit the a-melding on paper.

The a-melding is sent from the legal unit (organization) registered in the Register of Legal Entities. Consequently, the system can only be used if the enterprise has applied for and received a Norwegian organization number.

Also read: A brief guide to your Norwegian tax return

Due dates

The a-melding must be submitted by the 5th of the month after the payouts were made. The deadline is the next working day if the 5th is a Saturday, Sunday, or public holiday.

Example: Information about salaries paid out on the 21st of March must be submitted on or before the deadline,  the 05th of April. It does not matter if these salaries are March salaries or payments in arrears for February. The a-melding submission deadline is determined by the payout date.

The employer can submit the a-melding as often as they want. This is usually done if they have several payout dates in a month.

Note that tax amounts must be transferred to the tax office bi-monthly within the 15th of the following tax period.

For more information: Do the right things when doing business in Norway


The tax office carries out automatic checks for every a-melding that is submitted.

The feedback states what was reported and highlights errors which must be corrected. The feedback also contains information on payments of the employer`s National Insurance contributions and payroll withholding tax, accountant number, and KID number. It is therefore important to check the feedback.


Source: Guidance - Direct registration of a-melding in Altinn

You are welcome to contact us if you have any questions.


Article first published 19 February 2018 - Updated February 2023

Find out more about Magnus Legal’s tax services on our webpage: Corporate tax in Norway

eBook_Cover_Tax return

Individual income tax return to Norway

This guide is for everyone who works in Norway or on the Norwegian continental shelf and is liable to submit a tax return to the Norwegian tax administration.

This guide includes:

  • Who, what and when?
  • Is it possible for you to claim any deductions?
  • A-message reporting

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