In 2026, France taxes most cryptocurrency capital gains at a flat 31.4% rate. This consists of 12.8% income tax and 18.6% social contributions on net gains. The tax applies when cryptocurrency is converted into euros or used to purchase goods or services.
French tax authorities also require detailed reporting, and the introduction of the DAC8 directive means exchanges and wallet providers now share extensive transaction data with the tax office. As a result, accurate reporting and proactive tax planning are more important than ever.
1. Flat Tax on Capital Gains
France’s default treatment for personal crypto capital gains in 2026 is a flat 31.4% tax, made up of:
- 12.8% income tax
- 18.6% social contributions
This tax applies when you:
- Sell crypto for euros, or
- Use crypto to pay for goods or services
2. €305 Annual Exemption Threshold
- Total taxable gains under €305 per year are exempt from tax.
- If your gains exceed €305, the entire amount becomes taxable, not just the excess.
3. Progressive Tax Scale Option
Instead of the flat tax, taxpayers may elect the progressive income tax scale if:
- Their marginal income tax rate is below 12.8%, and
- The combined tax (income tax + social contributions) results in a lower overall rate.
This option can significantly reduce tax for lower-income taxpayers.
4. Foreign Accounts and Reporting Obligations
- Crypto accounts held on foreign platforms must be declared using Form 3916-bis, even if no gains were realised.
- From 1 January 2026, DAC8 requires crypto service providers to automatically report transaction data to French tax authorities.
Accurate self-reporting must now align with third-party data.
5. Loss Offsetting Rules
- Capital losses may offset gains realised within the same tax year.
- Losses cannot be carried forward to future years.
1. Harvest Losses Before Year-End
Strategy
- Sell underperforming assets before year-end to realise losses.
- Offset those losses against gains realised in the same year.
This reduces net taxable gains subject to the 31.4% tax.
2. Take Advantage of the €305 Exemption
Strategy
- Keep annual gains below €305 where feasible.
- Avoid triggering taxable status for the year.
This is particularly useful for small or occasional investors.
3. Elect the Progressive Tax Scale When Advantageous
If your marginal income tax rate is below 12.8%, the progressive scale may be cheaper.
Strategy
- Compare flat tax vs progressive tax annually.
- Choose the option with the lowest total tax burden.
4. Track Cost Basis Accurately Using the PCVT Method
France requires the PCVT (Plus-Values de Cessions) method:
- Sale price minus proportional acquisition cost
- Includes fees and historical valuation in euros
Accurate PCVT tracking prevents overstating gains and overpaying tax.
5. Separate Crypto Income from Capital Gains
Crypto received as income (staking, mining, airdrops, referral rewards) must be treated separately.
Strategy
- Record fair market value at receipt.
- Treat income as ordinary taxable income where applicable.
- Do not mix income events with capital gains calculations.
6. Plan Around DAC8 Transparency
DAC8 significantly increases reporting accuracy.
Strategy
- Keep complete transaction records, including swaps, DeFi activity, and wallet transfers.
- Ensure your reported data matches what platforms submit to tax authorities.
7. Use Tax-Free Events to Defer Tax
The following are not taxable events:
- Holding crypto without disposal
- Swapping crypto for stablecoins
Strategy
- Delay euro conversion until strategically beneficial.
- Use stablecoins to rebalance without immediate taxation.
8. Monitor Large Holdings and Potential Wealth Taxes
Future proposals may target large crypto holdings as “unproductive wealth.”
Strategy
- Stay informed about legislative changes.
- Consider early wealth-planning strategies if thresholds apply.
- Misreporting cost basis or gains
- Not harvesting losses before year-end
- Ignoring the €305 exemption
- Failing to declare foreign accounts (Form 3916-bis)
- Mixing income and capital gains
- Underestimating DAC8 reporting accuracy
Kryptos simplifies French crypto tax optimisation by:
- Automatically importing wallet and exchange transactions
- Applying France’s PCVT cost-basis method
- Tracking realised gains, losses, and income events
- Identifying tax-saving opportunities before year-end
- Monitoring foreign account reporting obligations
- Generating ready-to-file French tax summaries
- Maintaining full audit-ready documentation
With Kryptos, you reduce errors, save time, and optimise tax outcomes before filing season.
1. What is the crypto tax rate in France in 2026?
The default flat tax rate is 31.4% (12.8% income tax + 18.6% social contributions).
2. Are crypto-to-crypto swaps taxable?
No. Swaps are not taxable until crypto is converted to euros or used for purchases.
3. Can I offset crypto losses?
Yes, but only losses realised in the same tax year.
4. Is there a small-gain exemption?
Yes. Gains under €305 per year are exempt.
5. Do I need to report foreign crypto wallets?
Yes. Foreign accounts must be reported via Form 3916-bis.
6. How does Kryptos help reduce crypto tax in France?
Kryptos automates PCVT calculations, tracks gains and losses, flags exemptions, and prepares compliant reports.
Saving crypto tax in France in 2026 requires proactive planning, accurate cost-basis tracking, and strict compliance with reporting rules. By harvesting losses, choosing the optimal tax regime, tracking foreign accounts, and using automation tools like Kryptos, you can significantly reduce your crypto tax liability while remaining fully compliant under DAC8 and French tax law.
