
Singapore Corporate Tax Filing By The Experts
Stay ahead of deadlines, avoid penalties, and protect your business credibility with precise corporate income tax compliance.
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What Is Singapore Corporate Tax Filing?
In Singapore, corporate income tax is assessed on a preceding-year basis, with a flat tax rate of 17% on taxable income. The Year of Assessment (YA) is the year your company’s income is assessed for tax, based on the income earned in the financial year.
At VIVOS, we make the corporate tax filing process straightforward by helping you manage your Singapore corporate tax obligations. From preparing your Estimated Chargeable Income (ECI) to filing Form C-S/Form C, we ensure timely submission and avoid penalties. Corporate tax filing in Singapore is crucial for compliance, and our team provides expert services to handle it effectively.
Our Corporate Tax Filing Services
VIVOS provides comprehensive corporate tax filing services to ensure your business complies with Singapore tax regulations while optimising your tax position.

We assist in accurately calculating your taxable income and chargeable income while ensuring you meet all Singapore corporate tax filing requirements.

We help businesses prepare and file their ECI within three months of their financial year-end, as required by IRAS.

We guide you through Form C-S/Form C filing for the Year of Assessment, ensuring compliance with corporate tax Singapore filing deadlines (30th November each year).

Our team helps you optimise your corporate tax through strategic tax planning, reducing your tax liability while managing tax risks efficiently.

VIVOS offers guidance on filing for new companies, ensuring the correct filings for ECI and Form C-S/Form C in their first year of operation.



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What Our Clients Are Saying
Frequently Asked
Questions
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What is Singapore Corporate Tax Filing?
Corporate income tax in Singapore is a 17% tax assessed on a company’s chargeable income. Companies must file their corporate tax returns within specific deadlines as per IRAS requirements.
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What are the filing deadlines for Corporate Income Tax?
- Estimated Chargeable Income (ECI) must be filed within 3 months of your company’s financial year-end.
- Form C-S/Form C is due by 30th November each year for the Year of Assessment (YA).
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How to File Corporate Income Tax in Singapore?
To file your corporate income tax Singapore, prepare your ECI and Form C-S/Form C as required by IRAS, ensuring timely submission before the due dates. Our experts assist you in filing corporate tax returns and complying with all obligations.
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What is the Estimated Chargeable Income (ECI)?
ECI is an estimate of your company’s chargeable income for the Year of Assessment (YA) and must be filed with IRAS within three months of your company’s financial year-end.
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What happens if my company has no business activity or is in a loss position?
Even if your company has no business activity or is at a loss, you must file Form C-S/Form C with IRAS unless an exemption is granted.
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Do I need to file Corporate Income Tax Returns for a New Company?
Yes, new companies must file Form C-S/Form C and ECI even in their first year of operation.
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What are my company’s corporate tax filing requirements in Singapore?
All companies must file two corporate income tax returns with IRAS annually: the Estimated Chargeable Income (ECI) and Form C-S, Form C-S (Lite), or Form C, depending on eligibility.
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What is the difference between Form C, Form C-S, and Form C-S (Lite)?
These forms serve different types of companies based on revenue and complexity.
- Form C-S (Lite): For companies with annual revenue of S$200,000 or less.
- Form C-S: For qualifying companies with revenue up to S$5 million.
Form C: For companies that don’t meet the criteria above.
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What happens if I miss the corporate tax filing deadline in Singapore?
Failure to file on time can result in penalties, enforcement action, and possible court summons. Staying compliant with tax deadlines is critical.
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Is my dormant company required to file corporate income tax?
Yes. Dormant companies must still submit Form C-S unless they have obtained waiver approval from IRAS.
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Can I claim start-up tax exemption when filing my corporate tax?
Yes, if your company qualifies under the start-up tax exemption scheme, you must still file Form C-S or C to make the claim and remain compliant.
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How can professional tax services help with tax computation and filing?
Expert services help ensure accurate tax calculations, timely filing with IRAS, and full compliance with Singapore’s corporate tax laws, avoiding costly errors.
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What supporting documents are needed for Form C-S or Form C filing?
Documents typically include financial statements, tax computation, supporting schedules, and other records as required by IRAS.
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Can tax computation software help with corporate tax filing in Singapore?
Yes. Many businesses use IRAS-compliant accounting software to streamline and simplify their corporate tax filings.