A Singapore Government Agency Website
Official website links end with .gov.sg
Government agencies communicate via .gov.sg websites (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.
askgov

Inland Revenue Authority of Singapore
Inland Revenue Authority of Singapore

Hello!
How can we help?

Quick links

Check if you need to file a tax return (Individual)
Check if you need to file a tax return (Individual)
Request filing extension (Individual)
Request filing extension (Individual)
Understanding Provisional Instalment Plan (Individual)
Understanding Provisional Instalment Plan (Individual)
Making changes after filing/after receiving tax bill (Individual)
Making changes after filing/after receiving tax bill (Individual)
Apply/withdraw owner-occupier tax rates (Property)
Apply/withdraw owner-occupier tax rates (Property)
Available payment modes (Stamp Duty)
Available payment modes (Stamp Duty)
Interactive calculator (Stamp Duty)
Interactive calculator (Stamp Duty)
Retrieving stamp certificate (Stamp Duty)
Retrieving stamp certificate (Stamp Duty)
Check if you need to file a tax return (Individual)
Check if you need to file a tax return (Individual)
Request filing extension (Individual)
Request filing extension (Individual)
Understanding Provisional Instalment Plan (Individual)
Understanding Provisional Instalment Plan (Individual)
Making changes after filing/after receiving tax bill (Individual)
Making changes after filing/after receiving tax bill (Individual)
Apply/withdraw owner-occupier tax rates (Property)
Apply/withdraw owner-occupier tax rates (Property)
Available payment modes (Stamp Duty)
Available payment modes (Stamp Duty)
Interactive calculator (Stamp Duty)
Interactive calculator (Stamp Duty)
Retrieving stamp certificate (Stamp Duty)
Retrieving stamp certificate (Stamp Duty)

Topics


4 articles in

Will there be changes to the technical format when IRAS makes changes to the Form IR8A and/ or appendices?

Updated 11mo ago

There are differences between the hardcopy forms and the requirements stated in the technical format/ specifications. Which template should I follow to customise the printouts from my software?

Updated 11mo ago

Are there any requirements for API integration?

Updated 2y ago

Must the files be encrypted as a security feature?

Updated 2y ago

Need more help?

Describe your issues to us.

Contact us
irasVisit Inland Revenue Authority of Singapore website
FeedbackPrivacyTerms of UseReport Vulnerability
Created with
askgov
Built by

©2026 Open Government Products