5 April 2026 · 3 min read

Do I need SAL authentication?

SAL authentication is mandatory for documents going overseas. Here's how to tell whether yours needs it.

Since 1 October 2019, every notarised document produced in Singapore for use overseas must carry a Singapore Academy of Law (SAL) authentication stamp. It's a short coloured sticker attached alongside the Notarial Certificate, costing a statutory $80 plus 9% GST, or $87.20 per stamp.

When is SAL authentication needed?

Any document notarised for use in a foreign country, embassy or consulate.
Documents going through the apostille / legalisation chain in countries that recognise Singapore's notarial framework.
Foreign employment offers, school applications, visa support letters, powers of attorney overseas. Essentially anything leaving the country.

When is it NOT needed?

The document stays in Singapore, for a local court, HDB, bank, or government agency.
You're using a Commissioner for Oaths (not a Notary Public) for a purely local statutory declaration.

If a document needs SAL authentication, you must use a Notary Public. Commissioners for Oaths cannot produce the underlying Notarial Certificate that SAL authenticates.

Most firms handle the SAL step on your behalf. Expect an additional day for the stamp to be issued; some providers offer same-day turnaround for an admin fee.