Last Updated: 08 Jan 2026
We are sorry that the S1 Internet System is currently busy or temporarily unavailable. Please try again later.
In the meantime, you can find out how to prepare your submission using the S1 Option Form.
A Singapore Government Agency WebsiteHow to identify 
Official website links end with .gov.sg
Government agencies communicate via .gov.sg website
(e.g. go.gov.sg/open). Trusted websites
Secure websites use HTTPS
Look for a lock (
) or https:// as an added precaution.
Share sensitive information only on official, secure websites.