Our area of Taxation Services:

1. CORPORATE INCOME TAX FILING

Computation and timely filing of all corporate tax returns:
- Form C-S (Lite) – For qualifying small companies with revenue ≤ S$200,000. Simple filing with only essential fields.- Form C-S – For companies with revenue ≤ S$5 million that meet simplified criteria (e.g. no group relief, no foreign tax credit).- Form C – For larger companies or those claiming specific tax benefits. Requires full tax computations and financial statements.
2. ESTIMATED CHAREABLE INCOME (ECI) FILING
- Preparation and submission of ECI to IRAS within 3 months of your company’s financial year-end.- Ensures compliance and avoids penalties for late/non-filing.
3. TAX COMPUTATION & SCHEDULES PREPARTION

- Drafting detailed tax computations based on audited or management accounts.- Includes capital allowances, unutilised losses, donations, and other relevant adjustments.- Prepares supporting schedules for IRAS review.
4. WITHHOLDING TAX SERVICES

- Filing and payment of withholding tax for cross-border transactions (e.g. interest, royalties, technical services).- Advice on applicable rates, treaty benefits, and IRAS exemptions.
5. TAX ADVISORY STRATEGIC PLANNING

- Tailored guidance to optimize your tax position under Singapore’s territorial tax system.- Advice on tax exemptions, deductions, group relief claims, and start-up incentives.- Assistance with advance rulings and scenario planning.
6. TAX AUDIT & INVESTIGATION SUPPORT
- Representing and supporting your company during IRAS tax queries, audits, or investigations.- Preparing requested documents, explaining positions taken, and handling negotiations.
7. CORPORATE TAX RESIDENCY & CERTIFICATE APPLICATIONS
- Assistance with determining and maintaining tax residency status.- Preparation and submission of Certificate of Residence (COR) applications to enjoy tax treaty benefits.

Overview of the Corporate Tax environment

Singapore offers one of the most attractive and business-friendly tax regimes globally, designed to support enterprise growth, innovation, and international expansion. The corporate income tax rate remains at a flat 17%, with no capital gains tax and no tax on dividends, making it highly favorable for both local and foreign companies. To ease compliance and reduce the tax burden on businesses, especially startups and SMEs, Singapore provides a range of tax exemptions, incentives, and reliefs, such as the Start-up Tax Exemption (SUTE), Partial Tax Exemption, and enhanced deductions for R&D and IP development.
The Inland Revenue Authority of Singapore (IRAS) requires companies to maintain proper records, file annual income tax returns (Form C, C-S, or C-S Lite), and submit Estimated Chargeable Income (ECI) within three months of the financial year-end, unless exempt. With increasing digitalization, the IRAS has streamlined filing procedures through online platforms and implemented stricter enforcement on transfer pricing, foreign-sourced income, and economic substance requirements. Staying compliant not only avoids penalties but also unlocks access to valuable government grants and tax incentive schemes for qualifying activities.

Who needs to file Corporate Tax Returns

All Singapore registered Companies must file their Corporate Income Tax Returns even if they are making losses or have no income during the financial year. This is done so electronic submission via the https://www.iras.gov.sg/ office IRAS website. Unlike the Form C which requires the submission of financial statements and tax computation, the Form C-S (Lite) and Form C-S do not require the submission of financial statements and tax computations. However, companies are still obligated to prepare financial statement, tax computation and retain them for submission upon  IRAS' request. Choosing the correct form depends on the company's annual revenue, nature of income, and whether it is claiming specific tax benefits. In Singapore, every company must electronically submit their Corporate Income Tax Returns through either Form C or Form C-S.

CONSEQUENCES FOR LATE OR NON-FILING OF TAX RETURNS

Failure to file your Corporate Income Tax Returns together with financial statements and tax computation by the due date is an offence.
IRAS may take the following recovery actions if you fail to file by the due date:

- Issue an estimated Notice of Assessment. You must pay the estimated tax within 1 month
- Offer to compound the offence
- Issue a Section 65B(3) notice to your company director to submit the required information in the Corporate Income Tax Returns to IRAS
- Issue a Notice to Attend Court/ Summons to the company or persons responsible for running of the company (including the directors)

Scenario	Filing Requirement	Remarks
Dormant company (no business activity or income for the YA)	Required to file a simplified Corporate Income Tax Return using Form C-S/C for a Dormant Company unless granted a waiver by the IRAS.	File a simplified Tax Return by completing only 2 essential fields
Active company (regardless of income level or losses)	Mandatory to file your Corporate Income Tax Return as long as you have carried out business.	Refer to " Choosing the correct tax return filing form " for the type of Tax Return filing required.
Tax assessment for the previous YA is still under review	Mandatory to file Corporate Income Tax Return for the current YA based on the company’s submitted tax position for the previous YA.	Prepare tax computation by using the same unclaimed losses and asset written down values from your previous year YA tax computation when preparing your current year YA return. These amounts will be automatically pre-filled based on what your company declared in the previous year YA tax form.
Missed deadline or failed to file	Not acceptable – subject to enforcement actions (e.g., composition fines, court summons).	To file before 30 November 2025 for each YA. Fines and Penalty apply if fail to do so.

Choosing the correct Tax Return filing form

Criteria	Form C-S (Lite)	Form C-S	Form C
Annual Revenue	S$200,000 or below	S$5 million or below	Any amount (for companies that do not qualify to file Form C-S or Form C-S (Lite))
Incorporation	Singapore-incorporated companies	Singapore-incorporated companies	All companies, including foreign branches
Income Type	Only income taxable at the prevailing corporate tax rate of 17%.	Only income taxable at the prevailing corporate tax rate of 17%.	Any income, including income subject to special tax rates or exemptions.
Claims for Tax Benefits	Not claiming any of the following: carry-back of current year capital allowances/losses, group relief, investment allowance, foreign tax credit, or tax deducted at source.	Not claiming any of the following: carry-back of current year capital allowances/losses, group relief, investment allowance, foreign tax credit, or tax deducted at source.	Companies claiming any of the above tax benefits
Submission of Financial Statements & Tax Computation	Not required to submit with the form; however, companies should prepare and be ready to submit upon IRAS' request.	Not required to submit with the form; however, companies should prepare and be ready to submit upon IRAS' request.	Required to submit audited or unaudited financial statements, tax computation, and supporting schedules with the form.
Form Complexity	Simplest; requires completion of only 6 essential fields.	Simplified; requires fewer fields compared to Form C.	Comprehensive; requires detailed information and supporting documents
Filing Deadline	30 November of the Year of Assessment (YA)	30 November of the Year of Assessment (YA)	30 November of the Year of Assessment (YA)

corporate Taxation

Our area of Taxation Services:

Overview of the Corporate Tax environment

Who needs to file Corporate Tax Returns

Choosing the correct Tax Return filing form

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