Businesses and corporations
Value added tax
If your company is in the VAT register, remember to file VAT returns regularly even if you have not had any business activities.
Income tax returns from corporate taxpayers
Corporate entities with the accounting year ending December 2023 must submit their tax returns by 30 April 2024.
Real estate tax
If there are errors or missing information in the real estate tax decision, correct the information in MyTax by 30 April 2024 at the latest.
Important Dates and Deadlines
23.4.2024 Due date for prepayments of income tax
30.4.2024 The income tax return of corporate taxpayers
30.4.2024 Due date for first CESOP reports
30.4.2024 Due date for tax return on profit in the electricity and fossil fuel sectors
13.5.2024 Due date for VAT and other self-assessed taxes
13.5.2024 Employer's contributions
Tax prepayment
The amount of the current year's total prepayments is based on an estimate of taxable profits. If your income or expenses do not match the estimate you had made, you can request an adjustment of your prepayment in MyTax.
Business in Finland
Are you bringing your business operations to Finland? Your tax liabilities in Finland will depend on your company type and the scope of your operations.
Entrepreneurs: send information for household tax credits on your customer’s behalf
Self-employed professionals and companies providing renovations and other services to households can use an API to send information on the expense amounts to the Tax Administration directly.