How is a Turkish TC Kimlik No validated?

Three rules apply. The first digit cannot be zero, the tenth digit equals ((sum of the odd-position digits times 7) minus the sum of the even-position digits) modulo 10, and the eleventh digit equals the sum of the first ten digits modulo 10.

Does the TC Kimlik No contain a date of birth?

No. Unlike many national ID numbers, the Turkish T.C. Kimlik No encodes no date of birth or sex — it is a sequential number with two arithmetic check digits.

Is my ID number uploaded anywhere?

No. The validator runs entirely in your browser with client-side JavaScript — your number is never uploaded or stored.

Turkey TC Kimlik No Validator

Turkish T.C. Kimlik No validator

Validate a Turkish T.C. Kimlik No by applying its three official rules: the first digit must not be zero, and the two trailing check digits are derived arithmetically from the preceding digits. This tool reports each rule’s result so you can pinpoint a typo immediately.

Everything runs in your browser, so the number you enter is never uploaded. The T.C. Kimlik No carries no personal data, and this is a check-digit validator only — it does not confirm the number against the MERNIS civil register.