A-melding: monthly payroll reporting in Norway

The problem

Norway consolidated five separate employer reports into a single monthly filing: the a-melding. Every employer paying wages in Norway must file one — there is no exemption for foreign companies, no minimum employee count, and no grace period for new employers. The first a-melding is due the month after the first salary payment.

What it contains

Each a-melding reports, per employee: gross salary paid, tax withheld (table-based or PAYE), social security contributions (both employee and employer), pension contributions (see the true cost of hiring in Norway), employment start and end dates, working hours, and relevant income codes. The codes differ between ordinary taxation and PAYE, and between workers with and without A1 certificates.

Filing deadline

The 5th of the month following the salary period. January salaries are reported by February 5th. If the 5th falls on a weekend or holiday, the deadline moves to the next business day. There is no extension mechanism.

Penalties for late filing

Tvangsmulkt (compulsory fines) are issued automatically — the system does not warn before penalizing. The fine accumulates daily until the a-melding is filed. For a small employer this can quickly reach several thousand NOK per employee per month of delay.

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How foreign employers file

Via payroll software: most Norwegian payroll systems (Tripletex, Visma, PowerOffice, Duett) generate and submit a-melding directly to Altinn. This is the recommended approach. Via Altinn directly: possible but manual and error-prone, especially for employers unfamiliar with Norwegian income codes and contribution rules. Via an authorized accountant: the most reliable option for foreign employers — an accounting firm like Accounts Lab handles payroll setup, a-melding filing, and ensures correct codes from the first month.

Common mistakes

Using the wrong income code for PAYE vs ordinary taxation. Forgetting to report employer's social security contributions separately. Not reporting workers who started mid-month. Filing after the worker has left Norway without submitting the final a-melding with the end date. Each of these triggers corrections, penalties, or both.

Connection to other obligations

A-melding data feeds into the worker's tax assessment, the employer's contribution settlement, NAV (social security authority) records, and Statistics Norway. Getting a-melding wrong doesn't just create a penalty — it creates downstream problems in tax cards, social security membership, and pension records that are harder to fix than the original filing.

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The rhythm that keeps you compliant

The a-melding is not a form you file when convenient — it is a monthly heartbeat due by the 5th of the month after payroll. Miss it and enforcement fines accrue per day, per obligation. For a foreign employer three time zones away, the difference between calm and chaos is whether the routine exists before the first payroll run.

What must reconcile every month: employment relationships (who works, start/end dates), salary and benefits per income code, tax withheld, and employer's national insurance contribution. The data has to agree with the tax cards, the assignment reporting (RF-1198/1199) and — at year end — with what your workers see in their tax returns. Errors don't disappear; they compound into correction work.

Frequently asked questions

We already report payroll in our home country — does that count? No. The a-melding is a separate Norwegian obligation that applies because work happens in Norway, regardless of where your payroll system runs or where salaries are paid from.

What happens if we file late? Enforcement fines (tvangsmulkt) accrue automatically — per day, and scaled by the number of workers affected. It is one of the most mechanical penalty regimes in Norwegian compliance: the system doesn't call to warn you, it just charges.

Do we file if nothing was paid that month? If you have active employment relationships registered, reporting obligations generally continue — an employment relationship that has ended must be closed in the a-melding, or it keeps generating expectations.

Which income codes do posted workers use? It depends on the tax regime: PAYE workers are reported with PAYE-specific codes; ordinary-taxation workers with standard codes. Wrong codes are the most common correction we see in takeovers.

Can our foreign payroll provider file it? Technically anyone with the right Altinn access can — practically, the filings live in Norwegian systems, in Norwegian, with Norwegian deadlines. That is why foreign employers hand the a-melding to a Norwegian accountant and keep their home provider for the home country.

Related Services

This guide is part of FjordAzul's knowledge system for foreign companies operating in Norway. If you need professional support:

• Start your free cross-border assessment — 6 questions, reviewed by an authorized accountant
• Payroll for Foreign Employers — A-melding, tax deductions, holiday pay — handled at fixed pricing
• Accounting for Foreign Companies — full-service compliance for foreign operations in Norway
• Contact us directly — info@accountslab.no
• Go deeper on our accounting partner's site: Payroll in Norway for Foreign Companies