Singapore Corporate Tax — ECI & Form C-S
Estimated chargeable income and annual corporate tax returns
- 1EstimateECI filed if needed.
- 2ComputeTax with exemptions.
- 3FileReturn by 30 November.
Share your details. We’ll reply on WhatsApp with the next steps and a checklist.
Pick a plan — the fee is adjusted if you hire us within 30 days.
About Singapore Corporate Tax — ECI & Form C-S
A clear overview, in simple terms — what it is, why it matters, and how we handle it.
Singapore companies pay 17% corporate tax, reduced by the partial exemption (75% of the first S$10,000 and 50% of the next S$190,000 of chargeable income) or, for qualifying new companies, the start-up exemption (75% of the first S$100,000) for their first three years of assessment. Companies file Estimated Chargeable Income within three months of year-end unless exempt, and the annual return — Form C-S, C-S (Lite) or C — by 30 November.
Form C-S is for companies with revenue up to S$5 million and simple affairs; C-S (Lite) for revenue up to S$200,000. ECI isn't required if revenue is S$5 million or less and ECI is nil.
We prepare the tax computation and returns with partner Singapore accountants.
| Rate | 17% |
|---|---|
| ECI | Within 3 months of year-end (unless exempt) |
| Annual return | Form C-S / C-S Lite / C by 30 November |
| Start-up exemption | 75% of first S$100,000 (first 3 YAs) |
Work that the law requires a Singapore accountant to sign or represent is delivered through Indus Tax's partner professionals; our team prepares the records, coordinates the filing and stays your single point of contact.
Who this is for
Common scenarios where this service is a good fit.
- Singapore companies
- Subsidiaries of Indian groups
- Startups in their first years
What you get
Clear deliverables so you know exactly what's included.
- Tax computation
- ECI and annual return
- Exemption claims
Expert review before every submission — not just data entry.
Working notes and reconciliations you can rely on in future notices.
Resident Indians, NRIs, expats and cross-border businesses — all served.
Documents required
A practical checklist. We'll tell you if anything else is needed based on your case.
* This is a base checklist. After a quick pre-check, we may ask for additional items specific to your case.
Process
A simple, trackable workflow — designed to avoid back-and-forth.
ECI filed if needed.
Tax with exemptions.
Return by 30 November.
Get a quote
We share a clear quote on WhatsApp after a quick checklist pre-check.
- Fixed quote on WhatsApp after a short look at your facts and documents.
- Work that legally needs a Singapore accountant is signed by a partner professional; we coordinate it end to end.
- Government fees, if any, are paid at actuals and shown separately.
| Factor | DIY | Indus Tax |
|---|---|---|
| Expert review | ❌ | ✅ |
| Notice risk reduction | ❌ | ✅ |
| Deduction optimisation | ❌ | ✅ |
| Audit-ready records | ❌ | ✅ |
| AIS/26AS reconciliation | ❌ | ✅ |
Share your facts and deadline. We'll reply with the right checklist and a clear quote.
Fee adjusted against our service fee if you go ahead within 30 days.
- Priority CA Call-backSkip the queue — a CA calls you within 30 minutes.₹255
- RecommendedCA Consultation (30 min)Talk one matter through properly with a CA.₹755
- In-depth CA Review (60 min)Documents reviewed before the call, written action plan after.₹1,155
Call-backs run Mon–Sat, 9 AM–6 PM IST. Booked outside these hours? We call you first thing the next working morning.
Compare the 3 plansFrequently asked questions
Answers to the most common questions we get.
Official sources
Indus Tax is a private professional services firm and is not affiliated with any government authority. Rules and fees change — we confirm current positions before filing.
