You should submit an a-melding when total salary payments made to a person in the course of the year are more than NOK 1,000. The a-melding must be submitted electronically (or as a paper copy) at least once a month. A-messages should be submitted at the latest on the 5th of the month after payment of salary or benefits.
If salary payments relate to work in association with the home or holiday home of the employer, then Message of paid work in the home must be submitted when the salary payments to the employee exceed NOK 6,000. The message is submitted at the same time as you pay the salary to the employee.
The employer must however send an a-melding of tax that is deducted from an amount which is exempted from reporting. Withholding tax deductions are reported, but not the salary.