SINGTAX

18/05/2026

Dear SINGTAX Corporate users,

A cumulative service update to SINGTAX Corporate 2026 (Build 26.2.0) has been released. This update includes:

1. Forms->Form C for YA 2026.
2. Forms->Form C-S for YA 2026. However, direct e-filing of Form C-S via API from SINGTAX is not available pending testing with IRAS.
3. Forms->Form C-S (Lite) for YA 2026.

N.B. Re-generate your tax computations for data to populate the forms.

Existing users (using dongles and 1-user software activation) will be prompted to download patch upon starting SINGTAX Corporate 2026.

All other software activation (2 or more) users will receive an email with a link to download the patch.

Team SINGTAX.

05/05/2026

Dear SINGTAX Corporate 2026 Users,

We need time to implement the new data requirements by IRAS for YA 2026 Form C / C-S / C-S (Lite) into SINGTAX and formulate the relevant data transmission from the respective entry modules into the tax form templates accordingly.

We are targeting to release the Form C / C-S (without the seamless filing function) / C-S (Lite) templates in SINGTAX by 22 May 2026. When this is ready, you will receive an alert (when you log in to SINGTAX) to download an update patch.

We have yet to receive IRAS YA2026 Form C-S API for our Annual Readiness Testing (“ART”) for the seamless filing (which is expected to be released after mid-May 2026). Only upon IRAS clearance of our “ART” will we then receive IRAS approval to release YA 2026 Form C-S seamless filing in SINGTAX. As IRAS is in the midst of migrating their APIs to a new Whole-of-Government API platform (known as APEX Cloud), the Annual Readiness Testing for the YA2026 Form C-S API seamless filing may take up to August 2026 to complete (based on IRAS timeline).

For urgent cases (before Form C-S seamless filing is available in SINGTAX), we recommend for you to login to IRAS myTax Portal to e-file your clients’ YA2026 Form C-S.

We hope for your patience and thank you in advance for your understanding in this matter.

Team SINGTAX.

12/04/2026

Dear SINGTAX Corporate Users,

Some users have written in to ask when the latest announced updated CIT Rebate for the Year of Assessment ("YA") 2026 and CIT Rebate Cash Grant will be implemented in the software.

UPDATE: A patch for this will be released early this week.

Some users have also started to ask for Form C/ C-S/ C-S (Lite) features for YA2026. The reason is because clients started receiving notices to e-file Form C-S/ C for YA2026.

UPDATE: Try logging in to IRAS Tax Portal to e-file. You will see a "This form is currently unavailable" message.

The patch for Form C/ C-S/ C-S (Lite) will only be available 2 weeks after e-filing at the IRAS Tax Portal is opened. The reason is we need to check and compare our Forms' entries against the corresponding entries in the Tax Portal to make sure there are no errors before we release the updates.

Therefore, please refrain from sending us emails requesting status updates on the 2 items above.

We check IRAS website everyday. We are also a digital partner of IRAS and IRAS will update us when there are changes.

Thank you for your patience and understanding.

Most of all, thank you all for your wonderful support for SINGTAX all these years .

Team SINGTAX.

28/02/2026

A cumulative service update to SINGTAX Corporate 2026 (Build 26.1.1) has been released.

This update implements the Corporate Income Tax (“CIT”) Rebate and Cash Grant announced in Budget 2026, as well as other enhancements.

Existing users (dongle version & 1-user software activation version) will be prompted to download patch upon starting SINGTAX Corporate 2026. For all other users, a link to download the patch will be emailed to you.

Team SINGTAX

07/01/2026

Dear SINGTAX Corporate users,

Tax Connection is pleased to announce the release of SINGTAX Corporate 2026.

Two enhancements are added to this new version:

1. Tax non-resident company feature added.

2. Transferring Fixed Assets under Section 24 feature added.

More details regarding version 2026 changes can be found in the Help->Version History (version 2026) option of SINGTAX Corporate 2026 upon installation.

All existing SINGTAX Corporate 2025 users will receive an email notification with regard to this new version release.

Thanks for your support 🙂
Team SINGTAX

07/01/2026

Dear SINGTAX Personal users,

Tax Connection is pleased to announce the release of SINGTAX Personal 2026.

The Overseas Humanitarian Assistance Tax Deduction Scheme (YA2026 to YA2029) announced in Budget 2024 has been included in this version.

FORMs IR8A, APPENDIX 8A, APPENDIX 8B for YA 2026 has been added. FORM 1R8S has been discontinued from YA2026 onwards.

FORMs IR21, APPENDIX 1, APPENDIX 2 and APPENDIX 3 for YA2026 onwards was created using templates released by IRAS in July 2025. As there are significant changes to the forms, please regenerate any YA 2026 tax computations done using SINGTAX Personal version 2025 for data to populate the new fields in the YA2026 forms properly.

More details regarding version 2026 changes can be found in the Help->Version History (version 2026) option of SINGTAX Personal 2026 upon installation.

All existing SINGTAX Personal 2025 users will receive an email notification with regard to this new version release.

Thanks for your support 🙂
Team SINGTAX

21/11/2025

14/11/2025

The same rule pertaining to filing of Form C-S on IRAS tax portal applies to seamless filing of Form C-S from SINGTAX Corporate software.

The filing deadline of 30 Nov 2025 is fast approaching.

Ensure that you or your staff has been assigned with the “Approver” role for “Corporate Tax (Filing and Applications)” digital service in Corppass before filing Form C/ Form C-S/ Form C-S (Lite) at mytax.iras.gov.sg.

Failure to file the tax return by the deadline is an offence under the Income Tax Act 1947, and you may be subject to penalties of up to $5,000.

23/09/2025

Dear all,

Join us at SMEs Go Digital Day 2025, IMDA’s flagship SME event to help SMEs grow and scale your business through digital! Visit the event to see how you can reduce cost, boost profit, improve customers’ experience and cyber protect your business through digital.

Tax Connection has a booth (No. 2) at the Accountancy Sector.

For more details, visit https://services2.imda.gov.sg/ctoaas/smes-go-digital-day?utm_source=google&utm_medium=cpc&utm_campaign=smesgd_day_2025&gad_source=1

Team SINGTAX.

03/07/2025

A cumulative service update to SINGTAX Corporate 2025 (Build 25.1.2) has been released.

This update implements the Pre-Fill API and seamless filing ( ) of Form C-S API for YA 2025.

Existing users (dongle version) will be prompted to download patch upon starting SINGTAX Corporate 2025. For non-dongle users, a link to download the patch will be emailed to you.

Team SINGTAX