If you are holding a physical copy of the marriage certificate, the marriage certificate number is stated on the top right-hand corner of the certificate.

If you are holding a digital copy of the marriage certificate, the marriage certificate number is indicated beside the marriage date in the certificate.

If you have misplaced your marriage certificate, you may log in to your Singpass to retrieve your marriage certificate number which is found under 'Family' of 'My Profile'. Alternatively, you may consider applying for a duplicate marriage certificate here to know your marriage certificate number.