The technician (montør) logs 8.5 hours on the building site. A few days later they're paid. In between, something happens that most people in a management role are only vaguely aware of: an a-melding. If it fails, it isn't just pay that fails — it's the sick pay calculation, the pension basis and the employer's national insurance contribution. It's worth understanding the flow.

In short

  • The a-melding is a monthly report to the Norwegian Tax Administration (Skatteetaten), NAV and SSB covering pay, employment and tax deductions for every employee.
  • The deadline is the 5th of the month following the pay month (the A-melding Regulations (a-opplysningsforskriften) §2-1).
  • An incorrect or late a-melding triggers a daily coercive fine — and has direct consequences for employees' sick pay and pension.
  • The flow from timesheet to a-melding should be automated, not manual.

What is the a-melding?

The a-melding (the a-ordningen scheme) is Norway's shared reporting regime for employers. Every month, every employer with staff sends a report to the Norwegian Tax Administration (Skatteetaten), NAV and Statistics Norway with details of:

  • Every employee's pay and allowances for the month in question
  • Employment percentage and employment relationship (start, end, type)
  • Tax deductions (advance tax)
  • Employer's national insurance contribution
  • Benefits in kind and any perks

Even months without a pay-out — for example if an employee is on unpaid leave — must be reported if the employment relationship is active.

The deadline you can't miss

The deadline for submitting the a-melding is the 5th of the month following the pay month, per the A-melding Regulations (a-opplysningsforskriften) §2-1. If the 5th falls on a Saturday, Sunday or public holiday, the deadline shifts to the next working day (Skatteetaten, 2025).

For a trades business (håndverkerbedrift) with a January pay period, that means the a-melding must be submitted by 5 February. Pay for December is reported by 5 January.

Consequences of late submission: the Directorate of Taxes can impose a daily running coercive fine under the A-melding Act (a-opplysningsloven) §10. Errors in the report can incur a penalty and have direct consequences for employees: an incorrect sick pay calculation, an incorrect pension basis and potentially errors in their tax return.

The flow from hours to a-melding

Simplified, the flow looks like this:

1. Time registration. The technician logs working time per job through the month. Times, overtime, absence and leave are recorded.

2. Approval. The employer checks and approves timesheets (timeliste) at the end of the period — typically weekly or at month-end.

3. Payroll run. The payroll system calculates pay due, deducts tax and the employer's national insurance contribution, and generates payslips.

4. A-melding. The payroll system sends the report to the a-ordningen scheme. In most Norwegian accounting systems (Tripletex, Visma, Fiken, PowerOffice) this happens automatically on the payroll run.

5. Payout. Net pay is transferred to the employee's account.

The problem typically arises between steps 1 and 2: hours that aren't logged as you go, or that are logged but not approved in time, delay the payroll run — and thereby the a-melding.

What connects time registration to the a-melding?

The a-melding is based on what the payroll system reports. The payroll system is based on approved timesheets. Approved timesheets are based on what the technician logs.

The chain is therefore:

  • Incomplete time registration → wrong payroll basis (lønnsgrunnlag) → wrong a-melding → wrong outcome for the employee
  • Unrecorded overtime → wrong overtime supplement → potential breach of the working hours rules

Automated, integrated flows — where the time-tracking app sends data straight to the payroll system — reduce the risk of errors at every link. Manual transfers increase it.

Overtime and supplements in the a-melding

Overtime and various supplements (evening and weekend supplements, risk supplements, subsistence allowance) must be reported separately in the a-melding and are taxable. Your system must be able to distinguish ordinary pay (lønn) from supplements, and code them correctly.

Incorrect coding — for example reporting an overtime supplement as ordinary pay — can trigger an audit from the Norwegian Tax Administration (Skatteetaten) and a recalculation of the employer's national insurance contribution.

How to minimise the risk

Automate the link between time registration and payroll system. The fewer manual steps, the fewer errors.

Approve timesheets at least weekly. Don't wait until month-end. Gaps are spotted faster and are easier to fix.

Check the a-melding against the timesheets. Before you submit, verify that total pay matches approved hours and current rates.

Use a payroll system that submits the a-melding automatically. Most Norwegian systems do this, but confirm it when you buy.

Frequently asked questions

Can we submit the a-melding late just the once?

Formally, you can apply for an extension in special cases. In practice it's very tight — and a late a-melding may already have triggered a coercive fine. Build routines that make the 5th uncontroversial.

What happens if an employee leaves mid-month?

You report pay up to the leaving date and mark the employment relationship as ended in the a-melding. A missing end-of-employment report is a common error that creates unnecessary administrative work.

Does the a-melding distinguish between fixed pay and an hourly rate?

The a-melding has its own code sets for pay designation. An hourly rate and fixed pay are coded differently, and correct coding matters for a correct pension and sick pay basis for employees.

Summary

The a-melding is the monthly report that connects time registration to employees' sick pay, pension and tax return. The deadline is the 5th of the month following the pay month; an error or a delay triggers a daily coercive fine and consequences for employees. An automated flow from time registration to payroll system to a-melding is the safest option — manual transfers are sources of error.

See also: Time tracking for tradespeople: requirements and consequences · Digital time registration on the building site

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