Asked about Finland prepayment tax (ennakkovero) for self-employed individuals.
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General reference only
This Guide is general tax/accounting reference material for AI-assisted workflows. It has not been reviewed for your personal facts, documents, elections, deadlines, residency, filing status, or local procedures. Do not rely on it to file, pay, amend, or take a tax position without review by a qualified professional in the relevant jurisdiction.
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Tax year period
1 January – 31 December (calendar year)Act on Tax Prepayments (ennakkoperintälaki 1118/1996)
Act on Tax Prepayments
ennakkoperintälaki 1118/1996Act on Tax Prepayments (ennakkoperintälaki 1118/1996)
Income Tax Act
tuloverolaki 1535/1992Income Tax Act (tuloverolaki 1535/1992)
Capital income tax standard rate
30%Income Tax Act (tuloverolaki 1535/1992)
Capital income tax higher rate
34%Income Tax Act (tuloverolaki 1535/1992)
Instalment due date (monthly)
23rd of each month (or next business day)Act on Tax Prepayments (ennakkoperintälaki 1118/1996)
Number of instalments — under €170 annual ennakkovero
1 instalment; due MarchAct on Tax Prepayments (ennakkoperintälaki 1118/1996)
Number of instalments — €170–€500 annual ennakkovero
2 instalments; due March and SeptemberAct on Tax Prepayments (ennakkoperintälaki 1118/1996)
Number of instalments — over €500 annual ennakkovero
Up to 12 monthly instalments; due 23rd of each monthAct on Tax Prepayments (ennakkoperintälaki 1118/1996)
Annual tax assessment completion (typical)
October–November of the assessment yearAct on Tax Prepayments (ennakkoperintälaki 1118/1996); Income Tax Act (tuloverolaki 1535/1992)
Residual tax (jäännösvero) payment deadline
Typically December of the assessment year or February of the following year (in two instalments if >€170)Act on Tax Prepayments (ennakkoperintälaki 1118/1996)
Residual tax threshold for two instalments
>€170Act on Tax Prepayments (ennakkoperintälaki 1118/1996)
Late payment interest rate on residual tax
Base rate + 7 percentage pointsAct on Tax Prepayments (ennakkoperintälaki 1118/1996)
Tax refund (veronpalautus) payment timing
Typically August–December of the year following the tax yearAct on Tax Prepayments (ennakkoperintälaki 1118/1996)
Tax increase (veronkorotus) for deliberate underestimation
2–10% on additional taxAct on Tax Prepayments (ennakkoperintälaki 1118/1996); Laki verotuksen toimittamisesta
Section 1 -- Quick Reference
| Field | Value |
|---|---|
| Country | Finland (Republic of Finland / Suomen tasavalta) |
| Tax | Prepayment Tax (ennakkovero / förskottsskatt) |
| Currency | EUR only |
| Tax year | Calendar year (1 January -- 31 December) |
| Primary legislation | Act on Tax Prepayments (ennakkoperintälaki 1118/1996); Income Tax Act (tuloverolaki 1535/1992) |
| Tax authority | Finnish Tax Administration (Verohallinto / Vero) |
| Portal | OmaVero (https://www.vero.fi/omavero) |
| Applies to | Self-employed (elinkeinonharjoittaja / ammatinharjoittaja), rental income, capital gains, other income not subject to withholding |
| Validated by | Pending |
| Validation date | Pending |
| Skill version | 1.0 |
Key Terms
| Finnish Term | English | Meaning |
|---|---|---|
| Ennakkovero | Prepayment tax | Tax paid in advance during the tax year |
| Ennakkoperintä | Tax prepayment / withholding | The system of collecting tax before final assessment |
| Jäännösvero | Residual tax | Tax still owed after prepayments are applied to the final assessment |
| Veronpalautus | Tax refund | Refund if prepayments exceed final tax liability |
| Ennakkoverolippu | Prepayment tax slip | The notice showing prepayment amounts and due dates |
| Huojennus | Reduction / relief | Applying for reduced prepayments |
2.1 Mandatory
| Category | Obligation |
|---|---|
| Self-employed sole traders (toiminimiyrittäjä) | Must pay ennakkovero on estimated business income |
| Freelancers (ammatinharjoittaja) | Must pay ennakkovero on estimated professional income |
| Rental income recipients | Must pay if rental income not covered by employer withholding adjustment |
| Capital gains recipients | Must pay on estimated gains if significant |
| Partners in partnerships (Ay/Ky) | Must pay on estimated share of partnership income |
2.2 Not Required
| Category | Reason |
|---|---|
| Employees (only wage income) | Employer withholding (ennakonpidätys) covers tax |
| First-year entrepreneurs with no prior estimate | Verohallinto cannot assess; must request prepayment registration |
3.2 Components Included
| Component | Included |
|---|---|
| State income tax (progressive rates) | Yes |
| Municipal tax (kunnallisvero) | Yes |
| Church tax (if applicable) | Yes |
| Health insurance contributions | Yes |
| Capital income tax (30%/34%) | Yes, on estimated capital income portion |
| YEL pension contributions | No -- paid separately to pension insurance company |
| VAT | No -- separate system |
4.1 Standard Schedule
| Total Annual Ennakkovero | Number of Instalments | Typical Due Dates |
|---|---|---|
| Under €170 | 1 instalment | March |
| €170 -- €500 | 2 instalments | March and September |
| Over €500 | Up to 12 monthly instalments | 23rd of each month (or next business day) |
Prepayments are divided into instalments across the tax year. The number of instalments depends on the total amount:
Most self-employed with meaningful income pay monthly instalments, typically due on the 23rd of each month.
4.2 Payment Methods
| Method | Detail |
|---|---|
| OmaVero | View amounts, due dates, and pay directly |
| Bank transfer | Using the reference number from OmaVero / prepayment decision |
| Direct debit (suoramaksu) | Can be set up via OmaVero for automatic monthly payments |
| e-Invoice | Available through some banks |
After the annual tax return is filed and assessed (typically by October-November):
6.1 After Filing
| Scenario | Outcome |
|---|---|
| Prepayments < final tax liability | Residual tax (jäännösvero) is due |
| Prepayments > final tax liability | Tax refund (veronpalautus) is issued |
| Prepayments = final tax liability | No further action |
6.2 Residual Tax (Jäännösvero)
| Item | Detail |
|---|---|
| Notification | Via OmaVero and/or mail |
| Payment deadline | Typically December of the assessment year or February of the following year (in two instalments if >€170) |
| Interest | Late payment interest at base rate + 7 percentage points (Verohallinto publishes the annual rate) |
| Penalty-free threshold | Minor residual tax (under certain limits) may not incur interest |
6.3 Tax Refund (Veronpalautus)
| Item | Detail |
|---|---|
| Timing | Typically paid in August-December of the year following the tax year |
| Method | Direct deposit to bank account registered in OmaVero |
| Interest on refund | Verohallinto pays a small credit interest on overpaid amounts |
Section 7 -- Penalties for Underpayment
| Situation | Consequence |
|---|---|
| Insufficient prepayments (honest estimate) | Residual tax + interest at prescribed rate |
| No prepayment registration at all | Verohallinto may impose prepayments retrospectively; penalty interest applies |
| Deliberate underestimation | Tax increase (veronkorotus) of 2-10% on additional tax may apply |
| Late payment of instalment | Interest accrues from due date; persistent non-payment may lead to enforcement (ulosotto) |
Situation: Freelance designer, second year of business. Prior year final tax was €12,000.
Situation: Software consultant starts business in March 2025. Estimates €50,000 gross revenue, €10,000 expenses.
Section 9 -- Interaction with Other Taxes
| System | Interaction |
|---|---|
| Employer withholding (ennakonpidätys) | If self-employed person also has employment income, employer withholding reduces the amount of ennakkovero needed |
| YEL pension insurance | Paid separately; not included in ennakkovero but is tax-deductible |
| VAT (ALV) | Completely separate system; VAT payments and refunds do not affect ennakkovero |
| Municipal tax | Included in ennakkovero calculation |
Key Actions in OmaVero for Prepayments
| Action | Path |
|---|---|
| View prepayment decision | OmaVero → Ennakkovero → Current year |
| Request adjustment | OmaVero → Ennakkovero → Muuta ennakkoveroa (Change prepayment) |
| View payment schedule | OmaVero → Ennakkovero → Maksuerät (Instalments) |
| Pay ennakkovero | OmaVero → Maksaminen (Payments) |
| Set up direct debit | OmaVero → Maksaminen → Suoramaksu |
| View residual tax | OmaVero → Verotuspäätös (Tax assessment decision) |
| Check refund status | OmaVero → Veronpalautus (Tax refund) |
This skill and its outputs are provided for informational and computational purposes only and do not constitute tax, legal, or financial advice. Open Accountants and its contributors accept no liability for any errors, omissions, or outcomes arising from the use of this skill. All outputs must be reviewed and signed off by a qualified professional (such as a CPA, EA, tax attorney, or equivalent licensed practitioner in your jurisdiction) before filing or acting upon.
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Other Finland computations in the OpenAccountants Tax Library.
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