How do I check an SA ID number?

Simply enter the 13-digit South African ID number into our free ID checker tool above. The SA ID number check validates the format, date validity, and Luhn checksum, and decodes birth date, age, gender, and citizenship status from the number itself instantly. It does not check the number against Home Affairs or verify a person's real-world identity.

Is this SA ID number check free?

Yes, our SA ID number check tool is 100% free to use. You can check up to 5 ID numbers for free without creating an account, and create a free account for 5 validations every month. For higher volumes, we offer affordable paid plans starting at R79/month.

What information can I get from checking an ID number?

Our ID checker decodes the following from the number itself: date of birth, current age, gender (male/female), and citizenship status (SA citizen or permanent resident). It also validates whether the ID number is structurally valid using the Luhn algorithm checksum.

Is my ID number data stored or shared?

We never store your ID numbers, and we never store the decoded personal details such as date of birth, age, gender, or citizenship. We do keep privacy-safe usage metadata — for example whether a check passed, the time it ran, and which feature was used — to operate the service. We do not sell or share your data with third parties. Privacy by design and POPIA compliant.

How does the SA ID checker validate a number?

It checks the format and length, confirms the embedded date of birth is a valid date, and verifies the structure using the official Luhn algorithm checksum. This confirms the number is structurally valid — it does not check the number against Home Affairs or confirm it belongs to a real, living person.

Free developer tool

Free SA ID Number Generator

Name: SA ID Checker
Author: SA ID Checker

Instantly generate valid-format South African ID numbers for testing and development. Choose gender, age and citizenship — every number passes format, date and Luhn checksum validation. Test data only: not issued by Home Affairs.

Generate a Test SA ID Number

Choose the options below — anything left on “Any” is randomised.

Gender

Citizenship

AgeSet a specific age

Random age between 18 and 80.

How many

Test data only. These numbers are randomly generated for software testing and development. They are not issued by Home Affairs and do not belong to any real person. Using a fabricated ID number for a real transaction or to impersonate someone is illegal.

What this SA ID number generator does

This free tool creates structurally valid South African ID numbers on demand. Each generated number is 13 digits long and follows the official format: a YYMMDD date of birth, a four-digit gender sequence, a citizenship digit, the standard eighth digit, and a final Luhn checksum digit. That means every number it produces will pass a structural SA ID number check.

The numbers are test data. They are generated at random and are not issued by the Department of Home Affairs, so they do not belong to a real person. They exist so developers and testers can work with realistic-looking ID numbers without ever touching real personal information.

How to generate a valid SA ID number

Choose a gender — Male or Female, or leave it on Any. This sets the gender sequence (0000–4999 for female, 5000–9999 for male).
Choose citizenship — SA Citizen or Permanent Resident, which sets the 11th digit (0 or 1).
Set an age — pin an exact age or leave it random between 18 and 80. This drives the date-of-birth in the first six digits.
Pick how many and click Generate. The tool builds the first 12 digits and calculates the Luhn checksum to complete a valid number.

Want to build this into your own code instead? Our developer guide on generating SA ID numbers for testing includes copy-paste JavaScript, a table of known test IDs, and best practices for test-data management.

Who uses a test ID number generator

Developers building or unit-testing ID validation, sign-up forms and KYC flows.
QA and test teams needing consistent, safe data for integration and end-to-end tests.
Demos and staging environments that should never contain real customer ID numbers.

For a full breakdown of what each digit means, read the SA ID number explained.

Important: test data only

Generating ID numbers for software testing is legal. Using a fabricated ID number for a real transaction, financial application, or to impersonate a real individual is fraud and may carry criminal penalties under POPIA, the Cybercrimes Act and fraud legislation. Keep generated numbers inside isolated development, test and demo environments.

Frequently asked questions

Are the generated ID numbers real?

No. Every number is randomly generated for testing and development only. It is structurally valid — it passes the format, date and Luhn checksum rules — but it is not issued by the Department of Home Affairs and does not belong to a real person.

Will a generated number pass ID validation?

Yes. Each number is built with a valid date of birth, a correct gender sequence and citizenship digit, and a Luhn checksum, so it passes structural validation. You can confirm this by running it through our free SA ID checker. Note that structural validation never confirms a number belongs to a real, registered person.

Can I choose the gender, age and citizenship?

Yes. Set gender to Male or Female, pin an exact age (or leave it random between 18 and 80), and choose SA Citizen or Permanent Resident. Anything you leave on “Any” is randomised, and the generated number will encode exactly the attributes you selected.

Is it legal to generate SA ID numbers?

Generating test ID numbers for software development, QA and demos is legal and common practice. What is illegal is using a fabricated ID number for a real transaction, a credit or financial application, or to impersonate a real person — which can carry criminal penalties under POPIA, the Cybercrimes Act and fraud legislation.

Can I generate ID numbers in bulk?

Yes. Pick 1, 5, 10 or 25 at a time and copy them individually or all at once. For automated or larger-scale test-data generation you can build the same logic into your own code — see our developer guide on generating SA ID numbers for testing.

Need to validate an ID number instead?

Run any 13-digit number through our free checker to verify its structure and decode date of birth, age, gender and citizenship.

Check an SA ID number →