Do you wonder when you need to tell tax authorities about the crypto you hold in your own wallet? This article explains the reporting rules for self‑custodied cryptocurrency, what triggers a filing requirement, and how you can stay compliant while earning online.
What self‑custodied crypto reporting actually means
Self‑custody means you control the private keys to your crypto assets instead of keeping them on an exchange or with a third‑party service. Because the assets are not held by a regulated financial institution, tax authorities rely on the holder to disclose the value of those holdings.
Many jurisdictions set a threshold: if the total market value of your self‑custodied crypto exceeds a certain amount at the end of the tax year, you must report it. The report usually includes the types of assets, the amount held, and the valuation method (often the price on the last day of the tax year). The purpose is to ensure that any future gains or losses can be tracked for capital‑gain taxation.
Key terms:
- Self‑custody: Holding crypto in a wallet where only you have the private keys.
- Taxable event: Any transaction that creates a gain or loss, such as selling, swapping, or using crypto to pay for goods.
- Reporting threshold: The minimum total value that triggers a mandatory disclosure to tax authorities.
Real‑world illustration
In March 2026, the French National Assembly approved amendment I‑2701, which would require taxpayers to report self‑custodied crypto holdings of at least 100,000 euros (about $112,000) as of December 31 of the relevant tax year. The amendment is part of France’s 2027 Finance Bill and still needs final approval, but it shows how a government can set a concrete reporting threshold for personal wallets.
What it means for you
If you hold crypto in a hardware wallet, a software wallet, or any non‑custodial solution, you should check the total market value of those assets at the end of each tax year. When the value crosses the local reporting threshold, you must file a disclosure with the tax authority, even if you have not sold or otherwise realized a gain.
Failing to report can lead to penalties, interest, or audits. Conversely, accurate reporting protects you from future disputes and ensures that any capital gains you eventually realize are taxed correctly.
How to determine whether you need to report
- Identify all self‑custodied wallets: List every address you control, including hardware, mobile, and desktop wallets.
- Calculate the total value: Use a reputable price source (e.g., CoinGecko, CoinMarketCap) to find the market price of each asset on the last day of the tax year, then multiply by the quantity you hold.
- Compare to the threshold: Check the reporting threshold for your country. In France, it would be 100,000 euros; other jurisdictions have different levels or may require reporting of any amount.
- File the required form: Follow the tax authority’s instructions for disclosing crypto holdings. This often involves a specific schedule or annex to the standard tax return.
- Keep records: Store screenshots or CSV exports of wallet balances and price data in case the tax office requests proof.
FAQ
Do I need to report crypto that I keep on an exchange?
No, most reporting thresholds apply only to self‑custodied assets. However, many tax authorities also require you to disclose the total value of exchange‑held balances, so check local rules.
What if my crypto value fluctuates around the threshold?
Use the value on the last day of the tax year. If it is exactly at the threshold, you generally must report. Keeping a margin of safety by reporting when you are close can avoid accidental non‑compliance.
Are stablecoins included in the reporting calculation?
Yes. Stablecoins are treated like any other token for valuation purposes. In France, a separate amendment also proposes taxing gains from converting crypto into stablecoins, so they are definitely on the radar.
Can I use a crypto tax software to simplify reporting?
Many tax‑software tools can import wallet addresses and automatically calculate end‑of‑year values. Ensure the tool supports self‑custody reporting for your jurisdiction before relying on it.
This article references reporting from cointelegraph.com.
