Social Site

Skip to main content

A Singapore Government Agency Website How to identify

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.

Who We Are
Taxes
Schemes
Digital Services
Digital Collaboration

Social Site
Digital Gallery
Life at IRAS
Partnering for Progress (Resources)

Home
Who We Are
Social Site

Digital Gallery

Explore the history of taxes in Singapore and follow our transformation journey over the years.

Head to the gallery

Life at IRAS

Learn more about the people, culture and career opportunities at IRAS. Plus, meet the #IRASFam.

Find out more

Partnering for Progress (Resources)

Access a collection of useful educational resources and learn about our public engagement and feedback initiatives.

Go to resources

Follow @irassg

irassg

2026-11-03

Why is your GST filing period different from your friend’s?

The answer is simple: Your prescribed accounting period determines your GST filing schedule.

Find out more at https://go.gov.sg/gst-filing-deadlines.

Why is your GST filing period different from your friend’s? 🤔 The answer is simple: Your prescribed accounting period determines your GST filing schedule. Find out more at https://go.gov.sg/gst-filing-deadlines. ...Read More

irassg

2026-11-03

✅ Prepare your company’s Corporate Income Tax (CIT) Return with greater clarity – use the Business Expense Deductibility Checker to check whether common business expenses are tax-deductible.

Try it now at https://go.gov.sg/iras-ctexpense-checker.

✅ Prepare your company’s Corporate Income Tax (CIT) Return with greater clarity – use the Business Expense Deductibility Checker to check whether common business expenses are tax-deductible. 🔎 Try it now at https://go.gov.sg/iras-ctexpense-checker ...Read More

irassg

2026-11-02

Do you need help filing your Corporate Income Tax Return? Learn more at https://go.gov.sg/CITGuidance or check out our comprehensive playlist of e-Learning videos at https://go.gov.sg/CITeLearning.

Remember to file your Corporate Income Tax Return (Form C-S/ Form C-S (Lite)/ Form C) at myTax Portal by 30 Nov 2026.

#CorporateIncomeTax2026

Do you need help filing your Corporate Income Tax Return? Learn more at https://go.gov.sg/CITGuidance or check out our comprehensive playlist of e-Learning videos at https://go.gov.sg/CITeLearning. Remember to file your Corporate Income Tax Return ...Read More

irassg

2026-11-02

Don’t miss out on important updates relating to #CorporateIncomeTax2026. Update your email addresses and notification preferences at https://go.gov.sg/irasnoticepreferences to be notified when your company’s notices are ready for viewing at myTax Portal.

Don’t miss out on important updates relating to #CorporateIncomeTax2026. Update your email addresses and notification preferences at https://go.gov.sg/irasnoticepreferences to be notified when your company’s notices are ready for viewing at myTax Por ...Read More

irassg

2026-10-30

The myTax Portal Troubleshooting Assistant for Corporate Income Tax (CIT) is a new self-help resource for companies, providing instant, step-by-step guidance to help resolve technical issues when accessing Corporate Income Tax digital services in myTax Portal.

Access it at https://go.gov.sg/iras-cit-mtp-selfhelp.

As a friendly reminder, the filing deadline for CIT is 30 Nov 2026 - do file early to avoid the last-minute rush.

#CorporateIncomeTax2026

The myTax Portal Troubleshooting Assistant for Corporate Income Tax (CIT) is a new self-help resource for companies, providing instant, step-by-step guidance to help resolve technical issues when accessing Corporate Income Tax digital services in myT ...Read More

irassg

2026-10-30

Need help understanding your Corporate Income Tax (CIT) filing obligations?

Watch our e‑Learning video at your own pace for step‑by‑step guidance on CIT filing requirements, so you can file with confidence when filing season arrives.

Find out more in the e-Learning video at https://go.gov.sg/cit-ya2026video.

#CorporateIncomeTax2026

Need help understanding your Corporate Income Tax (CIT) filing obligations? Watch our e‑Learning video at your own pace for step‑by‑step guidance on CIT filing requirements, so you can file with confidence when filing season arrives. Find out more ...Read More

irassg

2026-10-29

Considering a new business arrangement or a deal that seems too good to pass up? Take a closer look. If it sounds too good to be true, it probably is.

Learn about possible red flags highlighted in a real case where GST input tax claims were denied because the underlying transactions could not be proven genuine. Read the case: go.gov.sg/beyondtaxinvoices

These are only some of the warning signs. Stay alert, know who you are doing business with and take active steps to protect your business.

#SGBusiness #GSTCompliance

Considering a new business arrangement or a deal that seems too good to pass up? Take a closer look. If it sounds too good to be true, it probably is. 🚩 Learn about possible red flags highlighted in a real case where GST input tax claims were deni ...Read More

irassg

2026-10-29

If your company qualifies for Form C-S (Lite), IRAS’ Record‑Keeping Assistant (RKA) can help organise your records for filing.

This new tool helps companies maintain proper records throughout the year by consolidating information required for Form C‑S (Lite) filing in a single file, reducing preparation time and risk of errors.

Find out more at https://go.gov.sg/iras-rka.

#CorporateIncomeTax2026

If your company qualifies for Form C-S (Lite), IRAS’ Record‑Keeping Assistant (RKA) can help organise your records for filing. This new tool helps companies maintain proper records throughout the year by consolidating information required for Form ...Read More

irassg

2026-10-28

New business owners, take note. To support businesses in enterprise development, some of your pre-commencement expenses incurred (including rental and utilities) may be tax-deductible.

Find out if they qualify for tax deduction at https://go.gov.sg/precommencementexpenses.

#CorporateIncomeTax2026

New business owners, take note. To support businesses in enterprise development, some of your pre-commencement expenses incurred (including rental and utilities) may be tax-deductible. Find out if they qualify for tax deduction at https://go.gov.sg ...Read More

irassg

2026-10-28

Started a new company and unsure of what you need to do this #CorporateIncomeTax2026 season?

Here are some useful resources:
➡️ Check whether you need to file using the Filing Obligations Checker under the IRAS Chatbot function: https://go.gov.sg/companiestaxfiling
➡️ Check out the basic guide to Corporate Income Tax for new companies: https://go.gov.sg/companiestaxfiling
➡️ Use the Basic Corporate Income Tax Calculator to guide you in preparing your company’s YA 2026 tax computation and tax schedules: https://go.gov.sg/BCTC

Started a new company and unsure of what you need to do this #CorporateIncomeTax2026 season? Here are some useful resources: ➡️ Check whether you need to file using the Filing Obligations Checker under the IRAS Chatbot function: https://go.gov.sg/c ...Read More

IRAS Social Site

A one-stop portal for taxpayer education as well as career and engagement opportunities for the community.

Inland Revenue Authority of Singapore

Careers
News & Events
Useful links

SUBSCRIBE TO OUR eALERTS

Contact Us
Feedback

IRAS Facebook
IRAS Instagram
IRAS TikTok
IRAS Twitter
IRAS LinkedIn
IRAS Youtube
Add Telegram Icon to IRAS Website
IRAS Whatsapp

Sitemap
Report Vulnerability
Privacy Statement
Terms of Use & Browser Compatibility

© 2026, Government of Singapore

Last updated 25 August 2022