Monitor the income amount on which your prepayment calculation is based
The total prepayment amount is based on an estimate of taxable income. During the year, compare your actual income with the estimate. If they do not seem to match, request changes to your prepayment amount. You can request changes more than once a year.
Example: If the calculated prepayment is too high, you can request adjustment. Do not leave the tax unpaid, and do not pay a smaller amount than what is imposed in the prepayment decision.
Request a prepayment calculation or a change to your prepayment
Request a prepayment calculation or a change to your prepayment amount in MyTax. You can also submit the application through software that uses a technical interface.
You can request a new prepayment calculation, make changes to your tax prepayment or request cancellation of the prepayment until the tax assessment process is finished. You can find the end date for tax assessment on your tax decision.
After you have submitted the request, you will receive a prepayment decision. The decision includes payment instructions.
If you are setting up a business, see the instructions for new businesses
Instructions for payment
The prepayment decision includes the number of payment instalments, their due dates and instructions for payment. You will receive the decision in your MyTax mailbox. If you are an individual taxpayer (such as a self-employed individual with a business name) and have not activated Suomi.fi Messages, i.e. you have not switched to electronic communications, you will also receive the prepayment decision and payment instructions by post.
The previous decision and payment intalments are valid until you receive a new decision and new payment instalments. If you have not received a new decision by the due date, pay your prepayment in accordance with the previous decision.
You can also make the prepayment in MyTax, in which case all the necessary details are pre-filled on the payment template. When you pay in MyTax, however, the due date is always the current day. Individual taxpayers can request e-invoices.
- The due date for tax prepayment is the 23rd of the month. A due date falling on a Saturday, Sunday or a public holiday is moved to the next business day.
- The number of instalments depends on the prepayment amount.
If you pay the tax after the due date, you will have to pay late-payment interest. Read more about consequences of late payment.