Finnish VAT (arvonlisävero, usually shortened to ALV) is a tax you add to your sales price, collect from your customer and pay to the Finnish Tax Administration (Verohallinto). The standard rate is 25.5%. You must register for VAT once your turnover goes over €20,000 in a calendar year, and the obligation starts on the day you cross that line. Your Finnish VAT number is FI followed by the eight digits of your Business ID (Y-tunnus). Returns and payments follow your tax period: on a monthly period they are due on the 12th of the second month after the month in question.

This guide covers the whole picture in one place, in English, under the 2026 rules: the threshold, the rates, the VAT number, the maths, deductions, deadlines, late fees and the mistakes that cost founders the most.

Why is Finnish VAT so confusing for English-speaking founders?

The rules themselves are not unusually complex. The problem is that the information is scattered, and much of it only exists in Finnish.

The threshold sits in one guide, the rates in another, the deadlines in a third. OmaVero, the Tax Administration's e-service (called MyTax in English), mixes Finnish and English terms. Several of the key rules changed in 2025 and 2026, and many pages you find through search still describe the old ones. A local founder has an accountant, a parent or a friend who already knows what "alv-kausi" means. An international founder usually does not.

So this page does one thing: it puts the current numbers side by side, with the Finnish term next to each English one, so you recognise it when you see it in OmaVero.

What is VAT in Finland and who actually pays it?

The end customer pays VAT. Your company collects it and passes it on.

When you sell, you add VAT on top of your price. When you buy for the business, you pay VAT to your suppliers, and you can usually deduct that VAT if the purchase relates to VAT-liable business. What you pay to Verohallinto is the difference between the two.

The formula is simple: VAT on your sales minus deductible VAT on your purchases equals the VAT you pay. If your deductible VAT is larger than the VAT on your sales, for example in a month with a big equipment purchase, the difference is refunded.

This is the most important mental shift for a new founder. VAT is not a cost of your business. It is money that passes through your business on its way to the state. Treat it as if it was never yours, and it will never surprise you.

When do you have to register for VAT in Finland?

You must register for VAT when your turnover exceeds €20,000 in a calendar year. Below that, your business counts as small-scale business activity (vähäinen liiketoiminta) and your sales are VAT-exempt. The threshold rose from €15,000 to €20,000 on 1 January 2025.

The threshold is checked against both the current and the previous calendar year. Your sales are exempt only if neither year goes over €20,000.

The biggest change in 2025 was timing. Under the old rule, crossing the threshold made the whole year's sales taxable retroactively. Under the current rule, VAT liability starts on the day the threshold is exceeded. The sale that takes you over the line is taxable in full, and every sale after it is taxable too. Earlier sales in the same year stay exempt.

The threshold is measured on turnover, not profit. Your costs do not reduce the number.

We cover the edge cases, the two-year rule and how to deregister in the article on when you have to register for VAT in Finland.

Can you register for VAT voluntarily?

Yes. A business under the €20,000 threshold can register voluntarily, as long as the activity has the characteristics of a business.

It usually makes sense when your customers are companies, because they deduct the VAT themselves and your price effectively stays the same for them. It also makes sense when you have significant deductible purchases, such as equipment or software at the start. If you sell mainly to consumers, voluntary registration means either a higher price or a thinner margin.

Voluntary registration is a commitment. You file a return for every tax period, including empty ones, until you deregister.

What is a Finnish VAT number and how is it formed?

A Finnish VAT number is FI followed by the eight digits of your Business ID (Y-tunnus), without the hyphen. If your Business ID is 1234567-8, your VAT number is FI12345678.

You do not apply for the VAT number separately. It is derived from your Business ID. What matters is that your company is entered in the VAT register (arvonlisäverorekisteri). An EU business customer will check your number in the EU's VIES system, and a Finnish VAT number is only confirmed there once you are VAT-registered.

You need the VAT number on invoices to business customers in other EU countries, and whenever you use the reverse charge in EU trade. On domestic invoices, the Business ID is the identifier you usually show.

Most confusion here comes from people treating the two numbers as different registrations. They are not. It is one company, one Business ID, and a VAT number that is the same digits in EU format.

What are the VAT rates in Finland in 2026?

Finland has three VAT rates in 2026. The standard rate is 25.5%, raised from 24% on 1 September 2024. The first reduced rate is 13.5%, lowered from 14% on 1 January 2026. The second reduced rate is 10%.

Two things to watch. Most goods and services that used to be at 10% moved to 14% on 1 January 2025, which is why they are now at 13.5%. And because the 13.5% rate only took effect on 1 January 2026, plenty of calculators and guides online still show 14%.

For most founders selling consulting, design, software or other professional services, the rate is 25.5%. The details of each category are in our guide to Finnish VAT rates in 2026.

How do you calculate Finnish VAT?

To go from a price without VAT to a price with VAT, multiply by the rate's multiplier. At 25.5% the multiplier is 1.255, so a €1,000 price becomes €1,255, of which €255 is VAT.

To go the other way, divide by the same multiplier. A €1,000 price including VAT is €796.81 without VAT, with €203.19 of VAT in it. So at the 25.5% rate, VAT makes up about 20.32% of a VAT-inclusive price, not 25.5%.

Taking 25.5% off a VAT-inclusive receipt is the single most common calculation error we see. It gives €745 instead of €796.81 on a €1,000 receipt. Worked examples for all three rates are in our article on how to calculate Finnish VAT in both directions.

What can you deduct VAT on?

You can deduct the VAT on purchases you make for your VAT-liable business. The deduction needs a valid purchase invoice or receipt that shows the VAT amount, and the seller must be liable for VAT in Finland.

Some costs are excluded even when they are genuine business costs. Entertainment expenses (edustuskulut) are not deductible, and costs of a passenger car are generally not deductible either. Any private-use share must always be separated out.

This matters more than it sounds. A deduction you claim wrongly is VAT you underpaid, and it will be corrected later, often with interest. The full lists and borderline cases are in our guide to which purchases you can deduct VAT on.

When is the Finnish VAT return due?

You file the VAT return and pay the VAT on the same day, according to your tax period (verokausi). On a monthly period, the due date is the 12th of the second month after the month you are reporting. VAT for March is due on 12 May.

If the due date falls on a weekend or public holiday, it moves to the next business day. For example, the annual return for 2025 was due on 2 March 2026. VAT return due dates cannot be extended.

You file in OmaVero (MyTax). A VAT-registered business files for every tax period, including periods with no sales at all.

Which tax period should your company use?

By default, the tax period is one calendar month. You can choose a quarterly period if your annual turnover is no more than €100,000, and an annual period if it is no more than €30,000.

You must keep a chosen tax period for at least one year. A move to a longer period takes effect from the start of the following calendar year. You change it in OmaVero, on form 4071, or with a change notification through the Business Information System (YTJ).

A longer period means fewer returns but a bigger single payment. Choose it on cash flow, not just on convenience. If VAT money easily ends up funding day-to-day operations, a monthly rhythm keeps it separate. The full comparison is in our article on Finnish VAT return deadlines and late-filing fees.

What happens if you file your VAT return late?

A late VAT return costs €3 for every day it is late, up to €135. Days are counted from the day after the due date to the day you file, weekends and public holidays included.

If you file more than 45 days late, a further 2% of the VAT payable reported on the return is added on top of the €135. That part is capped at €15,000 per tax period.

Late payment is a separate thing. Unpaid VAT accrues late-payment interest (viivästyskorko) from the day after the due date. In 2026 the rate is 9.5%.

The practical rule: file on time even if you cannot pay in full yet. The late-filing fee follows the return, not the payment.

What happened to the VAT relief for small businesses?

The VAT relief for small businesses (alarajahuojennus) was abolished from 1 January 2025. Before that, a business with turnover under €30,000 could get part of the VAT it had paid back on a sliding scale. The last year it could be claimed for was 2024.

The consequence is straightforward. Once you cross €20,000, you pay VAT in full from the first euro after the threshold. If you read an older guide that still talks about the relief, the rest of it is probably out of date too.

How does VAT change your pricing?

VAT affects your price differently depending on who your customer is. For a business customer, VAT passes straight through, because they deduct it. For a consumer, VAT is part of the final price.

That is why crossing €20,000 feels completely different from one business to the next. If you sell to companies, you usually lose no margin at all. If you sell to consumers, you either raise your prices by about a quarter or absorb the VAT from your margin. Review your pricing before the threshold gets close, not after.

Is VAT different for a toiminimi and an Oy?

The VAT rules are the same. A toiminimi (a Finnish sole trader, formally a private trader) and an osakeyhtiö (Oy, a limited company) have the same €20,000 threshold, the same rates, the same deadlines and the same late fees.

What differs is everything around it. A toiminimi owner often mixes business and private spending on the same card, which makes separating deductible costs harder. An Oy tends to have more deductible purchases earlier and more reasons to register voluntarily. We go through the sole-trader view in VAT for a toiminimi in practice.

How does VAT work on sales to other EU countries?

Cross-border trade has its own rules on top of the domestic ones. Sales of services and goods to VAT-registered businesses in other EU countries usually use the reverse charge, where the buyer accounts for the VAT, and they are reported on an EU sales list called the EC sales list (yhteenvetoilmoitus).

Since 1 January 2025 there is also an EU-wide small business scheme with a €100,000 threshold, measured on combined EU turnover across the current and previous calendar year. If you exceed it, you cannot use VAT exemption in other member states, even if you stay under Finland's €20,000.

This is its own topic, and we cover it in VAT on EU and export sales from Finland.

What does a VAT year look like in practice?

VAT is a rhythm, not a one-off event. Here is what the year looks like on a monthly period.

On a quarterly period the rhythm is the same, every three months. Keep the bookkeeping up to date monthly anyway. Three months of receipts at once is three times the work of one.

What are the most common Finnish VAT mistakes?

Five mistakes come up far more often than the rest.

1. Using the wrong percentage on a VAT-inclusive price. At 25.5%, VAT is about 20.32% of the total, not 25.5%.

2. Noticing the threshold too late. Liability starts on the day you cross €20,000, so every invoice from then on needs VAT. If you missed it, the mandatory registration is made retroactively from that date.

3. Skipping the zero return. A VAT-registered business files for every tax period, empty ones included. A missing zero return is a late return.

4. Using an outdated rate. The reduced rate has been 13.5% since 1 January 2026, not 14%.

5. Deducting non-deductible costs. Entertainment and, as a rule, passenger car costs stay outside the deduction.

What these have in common is that each one is usually discovered months later. By then, fixing it takes more work than getting it right would have.

How do you handle VAT without losing your evenings to it?

VAT becomes painful when the numbers have to be dug out by hand at the end of each period. Your bookkeeping, sales invoices and purchase invoices already contain everything you need. When they live in the same place and are up to date, the VAT figures are ready and nothing has to be assembled separately.

NoCFO is the all-in-one AI-native finance platform for entrepreneurs and founders. Bookkeeping, invoicing, payroll and reconciliation run on the same platform, and it connects to 2,500+ EU banks or a native NoCFO account. Your VAT figures for each period build up from the bookkeeping automatically. Luca, AI CFO, explains what the numbers mean and what to do next. You or your accountant stay in control: NoCFO suggests, a person reviews and approves.

A good accountant is a partner in this, not an obstacle. The problem was never the accountant. The problem is that a company's finances are a black box to the founder who runs it, and in Finland that box is often labelled in a language you are still learning.

Frequently asked questions

When do I need to register for VAT in Finland?

When your turnover goes over €20,000 in a calendar year. The obligation starts on the day you cross the threshold, and the sale that crosses it is taxable in full.

What is the VAT rate in Finland in 2026?

The standard rate is 25.5%. The reduced rates are 13.5% and 10%. The 13.5% rate replaced 14% on 1 January 2026.

What does a Finnish VAT number look like?

FI followed by the eight digits of your Business ID (Y-tunnus), with no hyphen. Business ID 1234567-8 becomes FI12345678.

When is Finnish VAT due?

On a monthly period, by the 12th of the second month after the reported month. On a quarterly period, 12 May, 12 August, 12 November and 12 February. On an annual period, by the end of February the following year.

How much does a late VAT return cost in Finland?

€3 per day, up to €135. If the return is more than 45 days late, 2% of the VAT payable on it is added on top, capped at €15,000 per tax period.

Get your VAT figures ready without the month-end dig

See what a VAT period looks like when the numbers are already there. Start free at nocfo.io.

Sources (checked 28 September 2026)

• Verohallinto: VAT exemption for small businesses (€20,000, current and previous year, liability from the day exceeded, EU €100,000)

• Verohallinto: The liability for paying VAT and registration for VAT (voluntary and retroactive registration, deregistration)

• Verohallinto: VAT number (FI + Business ID without the hyphen)

• Verohallinto: Instructions for filing (rates 25.5%, 13.5%, 10%; due dates; no extensions; zero return; 2 March 2026 example; relief abolished)

• Verohallinto: Tax period (€100,000 and €30,000, one-year minimum, form 4071)

• Verohallinto: Seuraamusmaksut oma-aloitteisessa verotuksessa (€3/day, €135, 45 days, 2%, €15,000)

• Verohallinto: If you pay late (late-payment interest 9.5% in 2026)

• Verohallinto: Arvonlisäverovelvollisen opas (13.5% rate from 1 January 2026)