What Is KYC (Know Your Customer)?
KYC, or Know Your Customer, is how a financial service provider verifies the identity of someone opening an account. On crypto exchanges it involves ID documents, facial checks and contact details, and it sets your limits.
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KYC, or Know Your Customer, is the process a financial service provider uses to verify the identity of the person opening an account. On crypto exchanges, it typically involves an ID document, facial verification and checks on contact details. You’ll sometimes see the older form “Know Your Client”; it means the same thing. KYC is a cornerstone of anti-money laundering (AML) rules.
Why do exchanges require KYC?
A platform can’t monitor suspicious activity or meet its legal obligations without knowing that each account belongs to a real, identifiable person. KYC makes it harder to open accounts with stolen identities, keeps sanctioned individuals out and makes it harder to launder the proceeds of fraud through the platform.
It benefits users too. A verified account can be recovered by proving your identity if you lose your password or someone takes over your account. Verified accounts also generally get higher limits for fiat deposits, withdrawals and crypto withdrawals.
How does the KYC process work?
- Basic details: you provide your name, date of birth, national ID or tax number, phone number and email.
- ID document: you upload a photo of your ID card, passport or driving licence; some platforms read the document’s chip directly.
- Liveness and face check: you record a short video or take a selfie, and the system matches your face to the document.
- Additional documents: higher limits or large transactions may require proof of address or information on the source of funds.
Many exchanges split verification into tiers. A basic tier allows limited activity, and as documents are approved, features such as bank transfers and crypto withdrawals unlock and limits rise. You’ll usually need at least basic verification to buy bitcoin on a platform.
The most common reasons for failed verification are blurry or glare-affected photos, expired documents and details that don’t match the ID. Uploading a well-lit image with all four corners visible and entering your details exactly as they appear on the document speeds things up. If an application is rejected, platforms usually explain why and let you try again.
KYC in Turkey
Crypto asset service providers operating in Turkey are required by MASAK regulations to verify their customers’ identities, so Turkish platforms won’t open lira transactions until verification is complete. The personal data collected must be protected under Turkey’s personal data protection law (KVKK), and each platform’s privacy notice explains how it is stored.
Staying safe during KYC
Only submit KYC information through a platform’s official app or website. Emails, text messages or social media messages asking you to “verify your account” by sending ID photos may be phishing attempts, and stolen ID images can be used to open accounts in your name.
Alongside KYC, turn on two-factor authentication to protect your account. Bear in mind too that transfers from a verified account to a personal wallet are visible on-chain, which can link that address to you.
Frequently asked questions
How long does KYC take? Automated checks can finish within minutes; manual reviews take longer.
Can I buy crypto without KYC? Decentralized exchanges generally don’t ask for ID, but buying with lira on a Turkish platform requires KYC, as does buying with fiat on most regulated exchanges. A platform not asking for ID doesn’t make legal obligations disappear.
Who sees my KYC data? Platforms may share identity data with the relevant authorities as required by law and with the verification providers they use. The details are set out in each platform’s privacy notice.