1978 – The Aa Register was established.

2011 – The register was expanded to include maritime employment.

2015 – The a-ordning reporting scheme was introduced, allowing employment and income information to be reported jointly to the Norwegian Tax Administration (Skatteetaten), Statistics Norway (SSB), and Nav. At the same time, the Aa Register was expanded with many new data elements.

2021 – Freelancers became part of the register.

For ordinary employment (arbeidsforhold), the following information must be reported:

a) the organization number of the main unit

b) the organization number of the subunit

c) the employees or freelancers national identity number or D number

d)  arbeidsforholdsID (employment relationship ID)

e) type of employment relationship

f) occupational code

g) start date of the employment relationship

h) end date of the employment relationship*

i) end cause*

j) form of employment

k) the number of hours per week that a full-time position corresponds to

l) agreed vacancy rate

m) hours worked for hourly employees*

n) working time arrangement

o) date of last salary change

p) date of last change of employment percentage

q) country code for income earned in a country other than Norway*

r) leave* (leave ID, leave type, start date and end date and leave percentage)

s) layoff* (layoff ID, layoff type, start date and end date and layoff percentage)

Data elements marked with * must be reported if they exist / are known.

Maritime employment

For maritime employment, the reporting obligation includes the same data elements as for ordinary employment. In addition, the following information must be reported:

• Ship register
• Type of vessel
• Trading area

Other employment types

For employment types such as freelancers, contractors, remunerated individuals, elected officials, and similar categories, the information listed under a. to h. must be reported.

For employment reported through the Simplified Settlement Scheme (Forenklet oppgjørsordning), the data elements listed under a., b., c., e., f., g., and h. must be reported.

No reporting obligation to the Aa register

There is no obligation to report to the Aa Register:

• when salary payments to an employee do not exceed NOK 1,000 during the income year
• when the employee is a foreign national working for an international organization based in Norway
• when the employee must be reported to the Norwegian Tax Administration's Register of Clients and Employees (Tax Administration Act, Section 7-6);
• for sole proprietors and their spouses, as self-employed persons are not considered employees. Any other employees of the sole proprietorship must be reported.

The register is used by most government agencies, many municipalities and county authorities, as well as certain private entities.

See examples of organizations with access to the Aa Register:

Nav

Nav uses information from the Aa Register for purposes including:

• processing applications for benefits;
• paying and reimbursing sickness benefits and parental benefits;
• reducing sickness absence;
• preventing and detecting welfare fraud;
• compiling statistics.

The Norwegian Labor Inspection Authority

The Norwegian Labour Inspection Authority (Arbeidstilsynet) uses the register when carrying out inspections of pay and working conditions. The authority also uses the register to issue HSE cards to employees in the construction, civil engineering, and cleaning industries. 

The police

The police use the register in the performance of police duties and in their role as enforcement authorities in debt enforcement proceedings.

Pension providers

Pension providers have access to the Aa Register to calculate occupational pensions (OTP) and contractual retirement pensions (AFP) for employees.

Estate administrators

Estate administrators who require access to the Aa Register in connection with estate administration or bankruptcy proceedings must apply for access in writing. The same applies to public authorities in other countries.

Research purposes

Private entities may be granted access to the Aa Register for research purposes when this serves the public interest.