Do you wonder whether you need to tell tax authorities about the crypto you keep in your own wallet? This article explains the reporting obligations that can apply to self‑custodied assets, how the rules are calculated, and what you should do to stay compliant.
What “wallet reporting” actually means
When you own cryptocurrency, you can store it in two main ways: on an exchange or a custodial service (where a third party holds the private keys for you), or in a personal wallet that you control yourself. The latter is called self‑custody. Because a self‑custodied wallet does not involve a regulated service provider, tax authorities cannot automatically obtain information about the holdings. To close that gap, some jurisdictions introduce a reporting requirement that obliges individuals to disclose the value of crypto assets held in personal wallets above a certain threshold.
The reporting rule typically works like this:
- Threshold: A specific monetary amount (for example, €100,000) is set. If the total value of all self‑custodied crypto you own on the reporting date exceeds that amount, you must file a declaration.
- Valuation date: Authorities choose a fixed date each year—often the end of the calendar year—to assess the market value of each asset. Prices are taken from recognized exchanges or price indices.
- Declaration method: You report the aggregate value on your annual tax return or on a dedicated crypto‑asset form, depending on the country’s tax code.
- Penalties: Failure to report can result in fines, which vary by jurisdiction but can be several thousand euros or dollars.
These rules are designed to prevent tax evasion by ensuring that gains from crypto are captured in the same way as gains from stocks, real estate, or other assets.
Real‑world illustration: France’s 2026 amendment
In October 2026, the French National Assembly’s Finance Committee adopted amendment I‑CF821, which would add a provision to France’s general tax code requiring holders of self‑custodied crypto assets to report holdings of €100,000 (about $112,000) or more as of December 31 each year. The amendment also set a fine of up to €10,000 for non‑compliance. The proposal aims to address a gap identified in a parliamentary inquiry that found €3.5 billion in crypto capital gains in 2021, while only €400 million in crypto holdings were declared.
Although the amendment still needs to pass the full National Assembly, it serves as a concrete example of how governments are moving from voluntary disclosure to mandatory reporting for large self‑custodied wallets.
What this means for you
If you keep crypto in a hardware wallet, a software wallet on your phone, or any other form of self‑custody, you may be subject to reporting rules once your holdings cross the local threshold. The impact is twofold:
- Tax compliance: You must include the reported value in your taxable income calculations. Capital gains are still taxed when you sell, but the reporting requirement ensures the tax authority knows you own the assets.
- Record‑keeping: Accurate records of purchase dates, amounts, and the market value on the reporting date become essential. Poor documentation can lead to disputes or penalties.
Even if you are below the threshold, keeping good records is advisable because thresholds can change and you might exceed them later as crypto prices rise.
How to check whether you need to report
- Calculate the total value: Add up the market value of every cryptocurrency you hold in self‑custodied wallets on the designated valuation date. Use a reputable price source such as CoinMarketCap or a major exchange’s closing price.
- Compare to the threshold: Look up the reporting threshold for your country. In France, it is €100,000; other jurisdictions may have different limits or none at all.
- Review filing requirements: Find the specific form or section of the tax return where crypto holdings must be declared. In France, this would be an amendment to the general tax code, likely a dedicated line on the annual declaration.
- Prepare documentation: Keep screenshots or CSV exports of wallet balances, transaction histories, and the price data you used for valuation. Store them securely for at least the period required by local tax law (often five years).
- Seek professional advice: If you are unsure about the calculation or the filing process, consult a tax professional familiar with crypto assets.
FAQ
Do I need to report crypto I keep on an exchange?
Most reporting rules target self‑custodied assets. However, many tax authorities also require you to disclose balances held on exchanges, especially if the exchange is a domestic service provider. Check your local regulations.
What if the value of my crypto drops below the threshold after I have reported?
Reporting is typically required once per year based on the valuation date. If your holdings fall below the threshold later in the year, you are still compliant for that reporting period. You will need to reassess the next year.
Are stablecoins included in the reporting threshold?
Yes. Stablecoins are treated like any other cryptocurrency for reporting purposes, even though their price is pegged to a fiat currency. Their market value is counted at the peg (e.g., $1 per USDC).
What happens if I forget to report and get fined?
Penalties vary, but they can include monetary fines (e.g., up to €10,000 in France) and, in severe cases, further legal action. Promptly correcting the omission and paying any assessed fine can mitigate additional consequences.
This article references reporting from cointelegraph.com.
