Bitcoin is a financial tool and thus subject to financial regulation in most jurisdictions. Nearly everywhere Anti-Money-Laundering-Rules (AML) are applied to platforms that sell Bitcoins or enable users to buy and sell Bitcoins. Most of these platforms have to adopt Know Your Customer rules (KYC) to verify the identity of its users.
Since Bitcoin transactions are saved publicly visible on the blockchain and can be traced back, the degree of private information you disclose with buying Bitcoins can have serious implications on your privacy.
There are several grades of KYC with an increasing amount of private information you have to disclose. The following list starts with the lowest grade:
- No KYC: No KYC means that the platform or the seller of Bitcoins does not know who you are. You don‘t have to show an identity document, and you pay with a private means of payment like cash, Moneygram, Paysafecard or Western-Union. Buying Bitcoin without KYC is possible in some jurisdictions – for example with P2P-marketplaces like LocalBitcoins, ATMs or Gift Cards – but is usually more expensive than other options.
- KYC Light: This degree of KYC identifies you by your payment channel and/or your phone numbers. If you pay with your bank account, PayPal, credit card or other common means of payment, the payment providers know your identity. On most platforms, be it direct exchanges, exchange platforms or marketplaces, you can buy a limited amount of Bitcoins with KYC Light.
- Full KYC: On top of verifying your identity with your phone number and your bank account, Full KYC means that you provide documents that prove your identity. This can be a passport, an ID card, a driver‘s license, a utility bill or a combination of all of this. Some platforms demand that you provide approval of your identity documents by a notary or a trusted third party like your bank; some are satisfied if you submit a photo showing you holding your ID card or take part in the process of video identification. If you want to invest larger amounts of money or trade on exchanges, there‘s usually no way around Full KYC.
