Validates a Sri Lankan VAT Registration Number issued by IRD. Formats: 9 digits + optional '-7000' suffix (e.g. '123456789-7000' or '1234567897000') or 12 digits.
VAT registration number.
true for a recognised VAT number format.
true
isValidVAT('123456789-7000'); // trueisValidVAT('invalid'); // false Copy
isValidVAT('123456789-7000'); // trueisValidVAT('invalid'); // false
Validates a Sri Lankan VAT Registration Number issued by IRD. Formats: 9 digits + optional '-7000' suffix (e.g. '123456789-7000' or '1234567897000') or 12 digits.