Finland Crypto Tax 2026

Most EU crypto regimes give you one cost-basis calculation and one rate. Finland gives you a choice on the first and a band on the second. Gains are capital income, taxed at 30% up to €30,000 and 34% above, but Finland also lets you swap your actual purchase cost for a deemed percentage of the sale price — the hankintameno-olettama. For an old or poorly-documented position, that single option can be the difference between a large taxable gain and a modest one. This guide walks through the bands, the deemed-cost lever, how losses fit, and what the new DAC8 reporting means for a Finnish filer.

In short

• Crypto gains are capital income: 30% up to €30,000 of total capital income, 34% on the portion above.
• The band applies to your total capital income, not crypto in isolation, so crypto gains stack with dividends, rental income, and other asset gains.
• The deemed acquisition cost (hankintameno-olettama) lets you deduct a presumed percentage of the sale price instead of actual cost basis — often the better outcome on long-held or low-basis holdings.
• Losses are generally deductible against capital gains and can be carried forward.
• DAC8 reporting starts for 2026: there is no holding-period exemption to claim, so the cross-check turns on whether disposals and proceeds were declared.

The 30% / 34% capital-income bands

Finland taxes crypto gains as capital income (pääomatulo). The rate is banded:

The key subtlety: the €30,000 boundary applies to total capital income, not crypto in isolation. Crypto gains stack with other capital income (dividends, rental, other asset gains) to determine how much sits in the 30% band versus the 34% band. A taxpayer with substantial other capital income reaches 34% on crypto sooner than one with none.

The deemed acquisition cost — the Finnish lever

Finland's distinctive feature is the deemed acquisition cost (hankintameno-olettama). Instead of deducting actual cost basis, a taxpayer may deduct a presumed percentage of the sale price:

• A higher presumed percentage applies to assets held for a long period.
• A lower presumed percentage applies otherwise.

For a long-held position with a very low or undocumented actual cost — early Bitcoin, for instance — the deemed acquisition cost can produce a lower taxable gain than actual cost basis, because the presumed deduction exceeds the tiny real cost. It is an option compared per disposal: use whichever (actual cost or deemed cost) yields the lower taxable gain, subject to the rules.

This is a genuine planning lever that most EU regimes lack (contrast Sweden's rigid 30% with no such option). It also means a correct Finnish computation is not a single cost-basis calculation but a per-disposal comparison.

Losses and carry-forward

Capital losses on crypto are generally deductible against capital gains, with carry-forward of unused losses for a number of years (confirm the current carry-forward length with Vero). Losses and the deemed-cost option interact — you would not apply deemed cost to a loss-making disposal — so the optimal per-disposal treatment is a comparison, not a default rule.

The small-gains threshold

Finnish practice references a general low-value threshold (commonly cited around €1,000 of total transfer proceeds/gains for the year) below which tax/reporting may not arise. This is a general rule, not a crypto-specific allowance, and the exact figure and basis should be confirmed with Vero for the filing year rather than assumed. Do not treat it as a guaranteed crypto exemption.

DAC8 and Finland

From 1 January 2026, CASPs report Finnish residents' crypto activity, exchanged to Vero by 30 September 2027 for FY 2026 (Finland was among the early DAC8 transposers — see DAC8 transposition by country). Finland has no holding-period exemption (only the deemed-cost option), so the cross-check centres on whether disposals and proceeds were declared — not on an exemption claim. Under-declaration is materially more detectable against CASP-reported data (see DAC8 impact on individuals).

Practical workflow for Finnish residents

1. Reconstruct per-disposal history with proceeds and actual cost basis in EUR.
2. For each disposal, compare actual cost vs deemed acquisition cost — use the better outcome.
3. Aggregate into total capital income and apply the 30% / 34% bands (remember other capital income stacks).
4. Apply losses and carry-forward appropriately (not in combination with deemed cost on the same loss).
5. Confirm the small-gains threshold with Vero rather than assuming.
6. Reconcile against DAC8-reported data.

Choosing and configuring a tool for Finland

Koinly and Divly both produce Finnish reporting, but the Finnish regime has two settings worth checking before you rely on any number a tool generates:

• Does it model the deemed acquisition cost (hankintameno-olettama) and pick the better of actual versus deemed cost per disposal? A tool that only ever uses actual cost basis will overstate tax on long-held, low-basis positions — the exact case where the deemed cost helps most.
• Does it apply the 30%/34% band to your total capital income rather than to crypto alone? If it bands crypto in isolation, it will understate the rate for anyone with other capital income.

Neither tool will classify uncertain DeFi income for you, and neither replaces a Finnish adviser's read on a genuinely ambiguous position.

Where Wag3s fits

Wag3s Folio reconstructs per-disposal EUR history and runs the actual-versus-deemed-cost comparison the Finnish regime rewards, then reconciles the result against DAC8-reported activity. For Finnish entities operating on-chain, Wag3s Ledger provides audit-ready records and multi-chain reconciliation. Folio produces the figures and the supporting records; it is built to support, not replace, a qualified Finnish tax adviser's review.

Worked example: applying the deemed acquisition cost in Finland

A Finnish resident, Erika, acquired 0.5 BTC in 2016 for €280 (approximately €560 per BTC at that time). In 2026 she sells the 0.5 BTC for €22,000.

Actual cost basis calculation:

• Proceeds: €22,000
• Actual acquisition cost: €280
• Taxable gain: €22,000 – €280 = €21,720

Deemed acquisition cost calculation (Vero rules): Under the Finnish deemed acquisition cost rules, for an asset held for a long time, the taxpayer may deduct a presumed percentage of the sale price rather than the actual cost. For assets held for at least 10 years, the presumed deduction is 40% of the sale price. For assets held for a shorter period, a lower percentage applies (the exact thresholds and percentages should be confirmed with Vero for the filing year).

For Erika's 2016 BTC held 10 years to 2026: the 40% presumed deduction applies.

• Deemed deduction: €22,000 × 40% = €8,800
• Taxable gain under deemed cost: €22,000 – €8,800 = €13,200

Comparison: Actual cost basis gives a taxable gain of €21,720; deemed acquisition cost gives €13,200. Erika should use the deemed acquisition cost, which reduces her taxable gain by €8,520.

Effect on the rate bands: Erika has €5,000 of other capital income from dividends in the same year, making her total capital income:

• Under actual cost: €5,000 + €21,720 = €26,720 — all in the 30% band (below €30,000).
• Under deemed cost: €5,000 + €13,200 = €18,200 — all in the 30% band.

In this case the rate band is the same either way, but the tax saving is still substantial: 30% × (€21,720 – €13,200) = €2,556 saved by choosing the deemed acquisition cost.

If Erika had more capital income — say €20,000 from other sources — the picture would change: under actual cost, €26,720 of the gain would push into the 34% band; under deemed cost, it would not. The rate-band interaction is a second reason to run the comparison per disposal.

Step-by-step: filing Finnish crypto tax with the deemed cost option

1. Compile every disposal for the tax year, with proceeds in EUR (or EUR equivalent on the disposal date if in another currency).
2. For each disposal, compute two figures: the gain using actual acquisition cost, and the gain using the applicable deemed-cost percentage of proceeds.
3. Choose the lower taxable gain per disposal; the two methods can be mixed across different disposals within the same year — there is no requirement to apply the same method to all disposals.
4. Sum all selected gains and add to other capital income to determine the 30%/34% band split.
5. Apply capital losses and carry-forward where relevant. Note: the deemed acquisition cost cannot be applied to a loss-making disposal — it is an alternative to actual cost only where it produces a lower gain, not a deeper loss.
6. Check the small-gains threshold with Vero before concluding no reporting is needed.
7. Pre-completed return. Vero issues a pre-completed tax return that may include CASP-reported data from DAC8. The taxpayer's job is to ensure the correct gain computation (especially the deemed-cost election) is reflected. Vero's pre-completion will not automatically apply the deemed acquisition cost — that is the taxpayer's election.

Further reading

• How to Do Crypto Taxes
• Sweden Crypto Tax Guide 2026 — neighbouring Nordic, no deemed-cost option
• Denmark Crypto Tax Guide 2026
• Germany Crypto Tax Guide 2026
• DAC8 Impact on Individuals
• DAC8 Transposition by Country

Sources

• Vero (Finnish Tax Administration) — Income from crypto assets and virtual currencies: capital-gains treatment, the 30%/34% capital-income bands, and the deemed acquisition cost (hankintameno-olettama).
• Vero — Taxation of virtual currencies (detailed guidance): the full technical guidance, including the deemed-cost percentages and loss treatment.
• Vero — New obligation to provide information on crypto asset services in 2026: the Finnish DAC8 reporting obligation.
• Council Directive (EU) 2023/2226 (DAC8) — EUR-Lex.