Why Do Exchanges Ask for Your ID?
Identity checks feel at odds with crypto. Here is what they are for, what happens to your documents, and when to be suspicious.
People arrive at crypto expecting anonymity and immediately meet a request for a passport photograph. It feels contradictory, and the reason is worth understanding.
What the requirement is
Businesses that convert traditional money into crypto are, in most countries, treated as financial institutions. That brings obligations to verify who their customers are and to report suspicious activity — the same rules banks operate under, applied to a newer industry.
The blockchain itself does not know who you are. The exchange does, because the law requires it to.
What you will usually be asked for
Typically a government identity document, proof of address, and sometimes a photograph taken at the moment of signing up to show the document belongs to you. Larger withdrawal limits often require more.
This is normal. A platform that lets you deposit conventional currency with no checks at all is more likely to be operating outside the rules than to be respecting your privacy — and a platform operating outside the rules is a poor place to keep money.
The real risk
The danger is not being asked. It is being asked by the wrong people. Fake exchanges and cloned websites collect identity documents precisely because they are valuable for identity theft, and you have handed over everything needed to impersonate you.
Before uploading anything: confirm you are on the genuine site by navigating there yourself rather than through a link. Check the platform is registered with the relevant authority in your country. Be wary of any platform that asks for identity documents over chat, email or a messaging app rather than through its own verified process.
What it does not do
Providing identification does not make a platform safe to leave money on indefinitely. It is a legal requirement, not a guarantee of solvency or competence, and exchanges holding fully verified customers have failed before.
Verification also does not make your on-chain activity private. Once an exchange links your identity to addresses you withdraw to, that connection exists. It is worth knowing this rather than assuming otherwise.
If you want to understand what leaving funds on a platform actually risks, our explainer on whether crypto is safe on an exchange covers it directly.
Robyn Alcaraz
Wallets, safety and scams
Covers wallets, account security and the scams aimed at people who are new — how they work, what they look like in practice, and the habits that stop them.
A standing byline of the Bright Start News desk, not an individual journalist. Everything published under it is written and edited by the desk, which is accountable for it.
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