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PricingAboutSupportIsraeli ID Validator
Check whether an Israeli teudat zehut number's check digit is valid, with the calculation shown step by step. Nothing you type here is sent or stored.
Type the number from the card to see whether the check digit is valid.
Where the Number Is Used
The teudat zehut (ת״ז) number is Israel's national identifier: nine digits, assigned at birth or on becoming a resident, and used on the ID card, in banking, on tax and government forms, for medical care, and on most contracts that need to tie a document to a specific person. A form's ת״ז field expects exactly this number.
Most Israeli forms and systems check the digit locally before accepting a number, the same calculation this page runs. A valid check digit rules out a typo; it is not proof the number was ever assigned to anyone or that it matches the person presenting it.
Frequently Asked Questions
How is the Israeli ID check digit calculated?
Spaces and dashes are ignored, then the number is padded to 9 digits. Each digit is multiplied alternately by 1 and 2, starting with 1 on the leftmost digit; when a product is two digits, its digits are summed. The ID is valid when the total of all nine results is a multiple of 10.
Does a valid check digit mean the ID belongs to a real person?
No. The check digit only catches typos and simple transcription errors; it does not confirm the number was ever issued to anyone, and it is not a substitute for verifying an ID against the Population Authority or the physical card.
What does the number tell you about the person?
Nothing beyond identifying them. It does not encode age, birth date, region, or gender; it is simply the identifier assigned at registration.