Important Dates and Deadlines for Individual Taxpayers

2018

January  |  February  |  March  |  April | May  |  June  |  July  |  August  |  September  |  October  |  November  |  December

January

Employers and employees continue to use the withholding instructions of 2017 tax cards in January 2018. However, the accumulation of 2018 wages and salaries starts from zero for purposes of payroll accounting and withholding.

3 January

Income tax prepayment invoices for 2018 have arrived to the taxpayers with 12 due dates.

15 January

Tax cards for 2018 have arrived to taxpayers.

23 January

Due date for prepayments of income tax

31 January

Last date to make a supplementary payment to add to 2017 withholding or prepayments.

February

1 February

  • Tax cards for 2018 become effective.
  • Due date for the second installment of 2016 back taxes.

23 February

Due date for prepayments of income tax.

March

The pre-completed return arrives by mid-March to the taxpayers for whom the last date to send back any corrections is 3 April 2018.

3 March

Taxpayers of Real estate tax receive their tax demand notes. 

8 March

  • The e-Service for online corrections to the Pre-completed tax return "Veroilmoitus verkossa" is available to all taxpayers who have 3 April 2018 as the deadline date for corrections and additions.
  • The e-Service for owners of real estate property "Kiinteistötiedot verkossa", opens at 12:00 noon (access to the interface is open to all customers including corporate taxpayers and partnerships managing a business). 

23 March

Due date for prepayments of income tax.

27 March

  • Real estate tax decisions and invoices have arrived to the taxpayers.
  • The e-Service for online corrections to the Pre-completed tax return "Veroilmoitus verkossa" is available to all taxpayers who have 8 May or 15 May 2018 as the deadline date for corrections and additions.

April

The pre-completed return arrives in April to the taxpayers for whom the last date to send back any corrections is 8 May 2018 or 15 May 2018.

3 April

Last date to send back Section One of the Pre-Completed Tax Return if your form has 3 April 2018 printed on it as the last date to send corrections.  If you have nothing to add or correct regarding your 2017 taxes, you do not have to send anything back.

23 April

Due date for prepayments of income tax.

May

8 May

  • Last date to send back Section One of the Pre-Completed Tax Return if your form has 8 May 2018 printed on it as the last date to send corrections.  If you have nothing to add or correct regarding your 2017 taxes, you do not have to send anything back.
  • For taxpayers whose deadline date is 8 May for submitting corrections to the Pre-Completed Tax Return, the e-filing interface for owners of real estate is now closed. You need not submit corrections or give details regarding your real estate if you haven't detected any errors with the calculations, facts and basis of your Real Estate Tax.

15 May

  • Last date to send back Section One of the Pre-Completed Tax Return if your form has 15 May 2018 printed on it as the last date to send corrections. If you have nothing to add or correct regarding your 2017 taxes, you do not have to send anything back.
  • For taxpayers whose deadline date is 15 May for submitting corrections to the Pre-Completed Tax Return, the e-filing interface for owners of real estate is now closed. You need not submit corrections or give details regarding your real estate if you haven't detected any errors with the calculations, facts and basis of your Real Estate Tax.

23 May

Due date for prepayment of income tax.

June

23 june

Due date for prepayment of income tax.

July

23 july

Due date for prepayment of income tax.

August

We start mailing the final, corrected 2017 tax assessment decisions in mid-August and continue until the end of October.

23 August

Due date for prepayment of income tax.

28 August

We start mailing the final, corrected 2017 tax assessment decisions and continue until the end of October.

September

September is the month when 2018 real estate tax assessment is completed.

3 September

Due date of the first installment of real estate tax.

23 September

Due date for prepayment of income tax.

October

15 October

Due date of the second installment of real estate tax.

23 October

Due date for prepayment of income tax.

31 October

  • All individuals can expect to have received their 2017 assessment decisions.
  • Closing date of the tax assessment processes for 2017.
  • If you need to pay a supplementary prepayment of tax, you can still do so today. Later, you'll have to submit a request for additional prepayment in MyTax (tax.fi/mytax).

November

MyTax will take over the e-services that relate to individuals' tax cards and income tax returns.

1 November

Release date of the 2017 tax information. Tax offices show the publicly disclosed facts to visitors who want to see them.

23 November

Due date for prepayments of income tax.

24 November

Submit a bank account number (vero.fi/mytax) for receiving the refunds for tax year 2017.

December

3 December

Due date to pay the first installment of 2017 back taxes (jäännösvero; restskatt)
(If you have a second installment to pay, its due date is 1 February 2018)

11 December

The 2017 refunds are paid as direct deposits to bank accounts. If the Tax Administration does not have the individual taxpayer's bank account number saved in the database, the refunds are paid in 19 December as a cashable money order at OP bank offices.

23 December

Due date for prepayments of income tax.

Note: If any due date falls on a Saturday, Sunday or a legal holiday, filing and payment are permitted on the following business day.