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Tax return for companies, foundations and associations

When the financial year ends, you have to report all relevant information for the year in your tax return in E-tax for companies (DIAS) and you do so in E-tax for businesses. The information your report forms the basis of the tax assessment notice of the company, foundation or association.

Deadlines

The reporting deadline of the tax return is usually 6 months after the end of the financial period.

You can see your tax return deadline in E-tax for business > Skat for selskaber m.fl. (Tax for companies, etc.) > Selskabsskat (Corporation Tax) > Selskabsskat (Corporation Tax) > Oplysningsskema (Tax Return).

You can start reporting as soon as the financial year of the company, the foundation or the association has ended.

 

How to do your tax return

More about tax return

The tax return first, then the tax assessment notice

When you have filed the tax return, we calculate the tax payable for the company, foundation or association and generate a tax assessment notice (årsopgørelse).

The tax assessment notice is always released each year in October via Digital Post. The tax assessment notice for income year 2024 was released via Digital Post in October 2025.

Please note that it's only the management company of joint taxation companies that receives the tax assessment notice.

You can also find the tax assessment notice in E-tax for businesses (TastSelv Erhverv) > Contact > Message Archive.

Outstanding tax and overpaid tax

The deadline of paying possible outstanding tax is 20 November. If the deadline is a weekend or a holiday, the deadline will be the coming weekday.

Refund of possible overpaid tax will be made to the company's Tax Account on 20 November. If the overpaid tax is not used for paying other charges in the Tax Account, it will be transferred to the NemKonto of the company subsequently.

For further legal information in Danish see our legal guide .