# Detect tampered and deepfake Turkish ID Card (T.C. Kimlik Kartı) > The T.C. Kimlik Kartı is Turkey's national identity card, issued under the Ministry of Interior through its population and citizenship affairs directorate (NVI), and it anchors onboarding at banks, telcos, and government services. Its eleven-digit T.C. Kimlik No ends in two computed check digits, so invented numbers fail arithmetic, and the same number is repeated in the machine-readable zone on the back for a second cross-check. **Canonical URL:** https://tampercheck.ai/documents-support/turkey_id_card **API document class:** `turkey_id_card` **Last updated:** 2026-10-04 --- ## What a genuine Turkish ID card contains The number runs eleven digits, the first of which cannot be zero, and the last two are check digits derived from the digits before them. The credit-card-size bilingual Turkish and English card, issued since 2017, carries photograph, surname, given names, date of birth, sex, nationality, document serial number, valid-until date, and signature, with a three-line machine-readable zone on the back. Older gender-coloured booklet cards remain genuine and valid for life, and they print fields such as marital status, religion, and blood type that the newer card omits. Turkish letters such as ç, ğ, ı, ö, ş, and ü appear in names and are transliterated to plain A to Z in the machine-readable zone, so a card that mixes old-booklet fields into the new card layout, or whose printed lines disagree with the zone, was assembled rather than issued. ## How Turkish ID card forgeries are made ### Check-digit recomputation The tenth and eleventh digits are deterministic functions of the digits before them. A number that fails either computation, is not eleven digits, or starts with zero was typed rather than issued. ### MRZ-to-front agreement The T.C. number, date of birth, expiry, and sex are printed on the front and repeated in the machine-readable zone. Any disagreement between the two means one side was edited. ### Layout and edition conformance The new card and the old booklet carry different field sets, and the analysis scores each against its own design. Religion or blood-type lines on a new-layout card signal a spliced template. ### Diacritic and font consistency Names print Turkish characters that the machine-readable zone flattens. A name line whose font, baseline, or glyph shapes differ from its neighbours is a typical edit signature. ### Photo and date-line patching Portrait swaps and altered valid-until or birth lines leave cut-line edges, resolution steps, and font passes that localise the substituted region. ## What TamperCheck checks on a Turkish ID card TamperCheck runs 200+ forensic checks across three layers and returns a risk score from 0 to 100 with plain-English findings tied to specific regions of the document. These three carry the most weight on this document class. ### Machine-readable zone validation Check digits across every MRZ field are recomputed, and the encoded name, number, and dates are compared against the values printed on the face of the document. Forgers routinely update one and forget the other. ### Portrait substitution and face-swap analysis The document is isolated from whatever it was photographed on, then the portrait region is assessed against the card surface around it. A pasted or generated face rarely matches the substrate it was placed onto. ### Date and validity consistency Issue, expiry, and period dates are checked against one another and against the file's own creation metadata, which catches backdating and validity extension. ### And many more checks The three above are the layers that carry the most weight on a Turkish ID card. Every upload runs the full suite of 200+ checks regardless of document class, spanning file structure and metadata, pixel-level forensics, font and text rendering, optical and print characteristics, provenance signals, AI-generation signatures, and many more checks. ## Who verifies a Turkish ID card, and why Turkish banks, fintechs, and eKYC platforms. In each case the document is being used to unlock money, access, or a legal status, which is exactly what makes it worth forging. ## How to verify a Turkish ID card in 4 steps 1. **Photograph both sides.** Capture the front and the machine-readable zone on the back flat and at full resolution so every digit and chevron survives close analysis. 2. **Validate the T.C. number.** Check that it has eleven digits, does not start with zero, and passes both check-digit computations. 3. **Compare front and zone.** Confirm the number, date of birth, expiry, and sex match between the printed fields and the machine-readable zone, allowing for transliterated letters. 4. **Run a forensic check on the file.** The number carries the structural story, and the print carries the edit history. TamperCheck runs 200+ forensic checks including T.C. number check-digit recomputation and patch detection, returning a risk score from 0 to 100 with findings tied to specific regions of the image. ## Frequently asked questions ### How is a Turkish T.C. Kimlik No validated? It has eleven digits, cannot start with zero, and ends in two check digits computed from the earlier digits. A number that fails either computation was not issued, whatever the quality of the card print. ### Does the T.C. number encode date of birth or gender? No. Unlike several other national numbers, it carries no birth date or gender, so the date of birth must be checked against the printed field and the machine-readable zone instead. ### Why does an older Turkish ID look so different? Turkey issued gender-coloured booklet-style cards between 1976 and 2017, and they remain valid for life. They print extra fields such as marital status and blood type that the credit-card-size card omits, so their presence on an old booklet is normal. ### How does TamperCheck verify a Turkish ID card? TamperCheck recomputes the T.C. number check digits, compares the front with the machine-readable zone, and inspects the portrait and date lines for patching. Uploads run through a single REST endpoint, are processed ephemerally and not stored, and findings tie to specific regions. ## Related document types - TamperCheck Forensic Report: https://tampercheck.ai/documents-support/forensic_analysis_report - Unknown: https://tampercheck.ai/documents-support/unknown --- Try TamperCheck now: https://tampercheck.ai/dashboard · Docs: https://tampercheck.ai/docs · Pricing: https://tampercheck.ai/pricing