Why source-of-funds matters (and where delays happen)
Even when the closing is in EUR, crypto-origin capital can trigger extra questions. Delays usually happen when:
- the history is complex (many wallets, transfers, exchanges), and
- documentation is prepared late, under time pressure.
Start with the overview:
/en/guide/crypto
A practical “SoF pack” (what to prepare)
Use this as a practical checklist. Exact requirements vary by bank/notary.
| Item | Why it matters | Who typically asks |
|---|

Proof of ownership (wallet / exchange / account)
The core requirement is often simple: reviewers need confidence that you control the assets you claim, and that the trail is consistent.
If your history includes multiple wallets, prepare a clear mapping (addresses → owner → exchange account).
Conversion records (crypto → EUR)
In most French closings, EUR must arrive in the notary chain. Keep:
- conversion confirmations,
- invoices/receipts where provided,
- bank statements showing EUR proceeds,
- dates and references consistent across documents.
Legal/compliance context:
/en/guide/crypto/legal-framework
Practical note: reporting accounts (forms 3916 / 3916 bis)
If you are tax resident in France and use foreign exchanges or custodial accounts, you may need to declare them via forms 3916 / 3916 bis. This is separate from the property transaction but often comes up in compliance discussions. Confirm your obligations with a qualified advisor.
Red flags (and how to avoid them)
Common red flags that slow down deals:
- unclear P2P origin with missing counterparties;
- missing acquisition evidence (no records, no consistent story);
- last-minute conversion planning with no time buffer;
- inconsistent amounts/dates across documents.
Avoid them by preparing the pack early and keeping a clean conversion path.
Timeline: what to do before you choose a property
If you want speed in execution:
- Build your SoF pack first.
- Pre-check conversion rails and timeline.
- Only then shortlist and negotiate properties.
Purchase flow overview:
/en/how-it-works
Next step: we can review your pack
If you want, we can do a quick pre-check to identify gaps and reduce the risk of delays during the closing chain.
- Start here:
/en/contact - Buyer-side service:
/en/buyer-agent
Sources
- AMF — regulator context (PSAN)
- service-public.fr — official public guidance
- impots.gouv.fr — French tax administration
Disclaimer: Educational checklist only (not AML, legal, or tax advice). Requirements vary by institution and case profile. Always confirm with qualified professionals.