Crypto and Digital Assets: US–France Tax Treatment
US citizens holding crypto-assets while living in France face dual compliance obligations that operate independently and, in some cases, pull in opposite directions. France taxes crypto disposals under its own statutory framework. The United States taxes the same disposals under US federal income tax rules. The two regimes do not mirror each other — they differ on what counts as a taxable event, how gains are calculated, and how losses are treated. Neither regime was designed with the other in mind.
French Crypto Taxation: CGI Article 150 VH bis
France taxes gains from crypto-asset disposals under CGI Art. 150 VH bis. The regime applies to French tax residents who are occasional investors. It does not apply to professional or habitual traders, who are subject to a separate framework (see Professional Trader Risk, below).
Terminology note: An ordinance issued in October 2024 (Ordonnance n° 2024-936) renamed “actifs numériques” to “crypto-actifs” in the CGI, effective 2026-07-01, following MiCA nomenclature. The substantive rules of Art. 150 VH bis are unchanged.
Taxable Events Under French Law
| Event | French Treatment |
|---|---|
| Disposal of crypto for fiat currency (euros, dollars) | Taxable |
| Exchange of crypto for goods or services | Taxable |
| Exchange of crypto for other crypto with cash consideration (soulte) | Taxable (on the cash element) |
| Pure crypto-to-crypto exchange without cash | Not taxable (sursis d’imposition — basis carries forward) |
The non-taxability of crypto-to-crypto exchanges is a defining feature of the French regime and its most important difference from US treatment.
Annual Exemption
Persons whose total disposal proceeds (excluding tax-deferred crypto-to-crypto exchanges) do not exceed €305 for the calendar year are fully exempt. The threshold applies to gross proceeds, not net gains — a taxpayer with €400 in proceeds and a net loss still exceeds the threshold and must report.
Tax Rate
| Regime | Income Tax | Social Charges | Total |
|---|---|---|---|
| Default flat tax (PFU) | 12.8% (CGI Art. 200 C) | 17.2% | 30% |
| Progressive barème election | Marginal bracket rate | 17.2% | Variable |
The progressive rate election must be made at the time of the annual declaration. It is irrevocable for the year and applies globally to all investment income — it cannot be selected for crypto gains alone.
Loss treatment: Net losses in a year may offset gains of the same nature in the same year only. Losses cannot be carried forward or backward.
How the Gain Is Calculated: The Portfolio Method
France does not use specific identification, FIFO, or LIFO. The taxable gain on each disposal is computed as:
Gain = Disposal price − (Total portfolio acquisition cost × Disposal price ÷ Total portfolio value)
| Variable | Definition |
|---|---|
| Disposal price | Net proceeds received (fiat or FMV of non-crypto consideration), after documented fees |
| Total portfolio acquisition cost | Sum of all amounts paid in legal tender for all crypto-assets ever acquired, reduced by capital already recovered in prior disposals |
| Total portfolio value | FMV of all crypto-assets held immediately before the disposal |
The acquisition cost denominator covers the entire portfolio across all platforms and wallets, not individual lots. Taxpayers with holdings across multiple exchanges must aggregate the full history. Lost records cannot be approximated — the DGFiP defaults to a zero acquisition cost for undocumented purchases, which maximizes the taxable gain.
US Crypto Taxation
The IRS treats crypto-assets as property. Every disposal is a taxable event. There are no exceptions for crypto-to-crypto exchanges, and no French-style tax deferral on swaps.
Taxable Events Under US Law
Every one of the following is a reportable disposal:
- Sale of crypto for fiat currency
- Exchange of one crypto-asset for another
- Payment for goods or services using crypto
- Staking or mining rewards received (taxable as ordinary income at FMV on receipt)
Gain Character
Gain or loss equals the amount realized (FMV of the proceeds) minus the adjusted basis of the asset disposed of.
| Holding Period | Character |
|---|---|
| 1 year or less | Short-term capital gain (ordinary rates) |
| More than 1 year | Long-term capital gain (preferential rates: 0%, 15%, or 20%) |
Gains and losses are reported on Form 8949 and Schedule D of Form 1040. Taxpayers must track the cost basis and acquisition date of every lot held.
Crypto-to-Crypto: The Critical Asymmetry
The most significant US–France mismatch involves crypto-to-crypto swaps. Under French law, a pure swap with no cash element is not a taxable event. Under US law, the same swap requires recognition of gain or loss equal to the difference between the FMV of the asset received and the adjusted basis of the asset surrendered. A US citizen living in France who swaps ETH for BTC:
- France: No taxable event; original ETH basis carries into the BTC position.
- United States: Taxable event; gain or loss recognized based on FMV differential.
This asymmetry means the two regimes will frequently apply to different sets of transactions in any given year, making a one-to-one credit offset difficult.
Foreign Tax Credit: Partial Relief with Structural Limits
French income tax paid on crypto disposals may generate a foreign tax credit on Form 1116.
What Is Creditable
The 12.8% PFU income tax component of the French levy under CGI Art. 200 C is a creditable foreign income tax. It is an income tax imposed by France and paid or accrued by the US taxpayer on French-source gain.
The 17.2% social charges component (prélèvements sociaux) creditability is contested. The IRS has denied creditability of certain French social charges in the past. See [fr_social_charges_context.md] for the current position. Do not state creditability of social charges as certain.
The Passive Income Basket
Crypto gains are generally passive income for Form 1116 purposes. The foreign tax credit limitation for the passive basket is:
(Foreign-source passive income ÷ Worldwide taxable income) × US tax
If the taxpayer has limited other passive-category foreign income, the passive basket limitation may restrict how much of the French crypto tax can actually offset US tax.
Structural Limits on Credit Effectiveness
Several factors reduce the practical value of the credit in crypto-heavy years:
-
Crypto-to-crypto timing mismatch. A gain recognized in the US but not in France produces no French tax to credit, yet the US gain increases US tax. This dilutes the effective credit rate.
-
Loss asymmetry. France permits same-year offset of losses; the US permits loss carryforward. In years with mixed gains and losses, the two regimes may produce different net taxable amounts.
-
Character differences. Short-term capital gains are taxed at ordinary rates in the US; the French PFU applies uniformly at 12.8% regardless of holding period. High-bracket US taxpayers may face a residual US tax liability above the French credit.
-
Basket limitation. The passive category credit limitation may be insufficient to absorb the full French tax credit if other passive income is limited.
Unused foreign tax credits carry back 1 year and forward 10 years within the same passive basket.
Professional Trader Reclassification Risk
Art. 150 VH bis applies only to occasional investors. If the DGFiP determines that a taxpayer’s crypto activity constitutes a professional activity, gains are reclassified as bénéfices non commerciaux (BNC) — non-commercial profits. BNC treatment:
- Applies the progressive income tax scale instead of the 12.8% flat rate
- Subjects the activity to self-employed social contributions (not the flat 17.2% social charges)
- Treats the activity as self-employment for US federal income tax purposes, potentially triggering US self-employment tax (subject to Totalization Agreement coverage; see Social Charges article for limits)
There is no safe-harbor transaction count. The DGFiP evaluates frequency, organization, and scale. Reclassification can be applied retroactively following an audit.
Staking, Mining, and Airdrop Income
France
- Mining: Typically classified as BNC (professional/habitual activity) due to the systematic nature of the operation. Mining income is recognized at receipt at FMV.
- Staking: Not explicitly addressed in Art. 150 VH bis. DGFiP guidance treats staking rewards as income at receipt. Character (BNC or capital income) depends on the facts and remains an evolving area.
- Airdrops: No specific French guidance; general income principles apply.
United States
- Mining: Ordinary income at FMV of the mined coins on date of receipt. Classified as self-employment income if conducted as a trade or business.
- Staking: Ordinary income at FMV on date of receipt (Rev. Rul. 2023-14). Subsequent disposal triggers capital gain or loss based on the FMV at receipt as the cost basis.
- Airdrops: Ordinary income at FMV on date of receipt if the taxpayer exercises dominion and control over the tokens.
Reporting Obligations
French Foreign Account Declaration (CGI Art. 1649 bis C)
French tax residents must declare all accounts held on foreign crypto-asset platforms annually on their income tax return. The obligation covers each account opened, held, used, or closed during the year.
| Penalty | Amount |
|---|---|
| Failure to declare (general) | €750 per undeclared account |
| Failure to declare (non-cooperative jurisdiction) | €1,500 per undeclared account |
Accounts held with French-regulated PSAN (Prestataire de Services sur Actifs Numériques) platforms are reported automatically by the platform to the DGFiP and are not subject to the individual declaration.
Form 8938 (FATCA)
Foreign crypto exchange accounts where the taxpayer holds assets are specified foreign financial assets under IRC §6038D. The maximum value during the year counts toward the Form 8938 threshold. For US citizens living abroad, the Form 8938 filing thresholds are $200,000 at year-end or $300,000 at any point during the year (single filers), and double for married filing jointly.
FBAR (FinCEN Form 114)
FinCEN has proposed extending FBAR reporting to virtual currency accounts. As of the date of this article, final rules have not been issued. The IRS has indicated that it considers FBAR reporting of crypto exchange accounts to be required under the proposed rules, but practitioners should monitor FinCEN rulemaking before relying on a position of non-applicability.
Form 8949 and Schedule D
All US crypto disposals must be reported on Form 8949, which feeds into Schedule D of Form 1040. Each disposal requires the acquisition date, disposal date, proceeds, and adjusted basis. The IRS has included a question on Schedule 1 of Form 1040 requiring disclosure of whether the taxpayer received, sold, exchanged, or otherwise disposed of any digital assets during the year.
Record-Keeping
Dual-regime compliance requires complete transaction records maintained in two separate frameworks:
For US purposes: Date acquired, acquisition price (FMV in USD), date disposed, proceeds (FMV in USD), method used for cost basis (specific identification, FIFO, or other IRS-accepted method).
For French purposes: Total portfolio acquisition cost from inception, total portfolio FMV at each disposal date, proceeds from each disposal. The portfolio proportional method requires a running aggregate of all purchases since the taxpayer first acquired crypto-assets.
A US citizen who acquired crypto-assets before becoming a French tax resident must determine the French-law acquisition cost for positions carried into French residency. Positions acquired as a French resident must be tracked under both systems from acquisition.
Technical References
French statutory framework: CGI Art. 150 VH bis (occasional investor gains); CGI Art. 200 C (12.8% flat tax rate); CGI Art. 1649 bis C (foreign account declaration). LEGIARTI references: Art. 150 VH bis — LEGIARTI000038612228 (current); LEGIARTI000050366751 (effective 2026-07-01, terminology update only).
US statutory framework: IRC §1001 (recognition of gain or loss); IRC §1221 (capital asset definition); IRC §1222 (short-term and long-term capital gain and loss); Rev. Rul. 2023-14 (staking income taxable at receipt); IRS Notice 2014-21 (crypto-as-property classification).
US reporting: Form 8949 (individual capital gain transactions); Schedule D (aggregate capital gain summary); Form 1116 (foreign tax credit); IRC §6038D and Form 8938 (FATCA); 31 U.S.C. §5314 (FBAR, pending FinCEN virtual currency rulemaking).
US–France treaty: The treaty does not contain specific provisions addressing crypto-asset gains. Treaty Article 24 provides for double taxation relief via the credit method, but characterization and basket-limitation issues limit relief on mismatched transactions. The saving clause (Art. 29(2)) preserves US domestic law application for US citizens.
Frequently Asked Questions
Is a crypto-to-crypto swap taxable in France?
No — under CGI Art. 150 VH bis, a pure exchange of one crypto-asset for another without any cash or non-crypto consideration is a tax-deferred event (sursis d’imposition). The cost basis of the original holding carries forward. This differs from US treatment, where every disposal, including a crypto-to-crypto swap, is a taxable event.
Is a crypto-to-crypto swap taxable in the United States?
Yes. The IRS treats every disposal of a crypto-asset as a taxable event, including exchanges for other crypto-assets. The gain or loss is measured by the difference between the fair market value of the asset received and the adjusted basis of the asset disposed of. The holding period determines whether the gain is short-term or long-term.
Does France tax crypto gains for US citizens living in France?
Yes. French tax residents — including US citizens resident in France — owe French income tax on crypto-asset disposals under CGI Art. 150 VH bis at a combined rate of 30% (12.8% income tax + 17.2% social charges). An annual exemption applies if total disposal proceeds do not exceed €305.
Can the French tax paid on crypto reduce my US tax bill?
Partially. The 12.8% French income tax component (PFU) paid on crypto disposals is a creditable foreign income tax and may generate a foreign tax credit on Form 1116 (passive income basket). However, characterization differences and the crypto-to-crypto timing mismatch between the two regimes can reduce or eliminate the credit’s usefulness in a given year.
Do I need to report my foreign crypto exchange account to the IRS?
Yes, under Form 8938 (FATCA) if the total value of all specified foreign financial assets exceeds the applicable threshold. FBAR reporting for crypto exchange accounts is subject to a pending FinCEN rulemaking; FinCEN has indicated an intent to require FBAR reporting for virtual currency accounts, but final rules have not been issued as of the date of this article.
How does France calculate the taxable gain on a crypto disposal?
France uses a portfolio proportional method under Art. 150 VH bis. The gain equals the disposal price minus a proportional fraction of the total acquisition cost of the entire portfolio, where the fraction is disposal price divided by total portfolio value at the time of disposal. France does not use FIFO, LIFO, or specific identification — each disposal draws on the full portfolio’s aggregate cost basis.
How is staking income taxed in France and the United States?
In France, staking income treatment is not explicitly resolved by Art. 150 VH bis. DGFiP guidance treats staking rewards as income at receipt, but characterization as capital income or BNC (non-commercial profits) is still evolving. In the United States, the IRS treats staking rewards as ordinary income at their fair market value on the date of receipt (Rev. Rul. 2023-14), regardless of whether the tokens are subsequently sold.
What is the professional trader reclassification risk in France?
Reclassification is a real risk. The DGFiP may reclassify a taxpayer’s crypto activity from occasional investor (Art. 150 VH bis) to professional trader (BNC) based on frequency, organization, and scale. There is no bright-line transaction count. Reclassification applies the progressive income tax scale and self-employed social contributions to the entire activity, retroactively on audit.