Corporate Tax & GST · Singapore

Pay the right tax. Not more than you need to.

Singapore's 17% flat corporate tax rate is one of the most competitive in the world — but only if your filings are structured correctly. LUMA CFO handles your corporate tax and GST obligations end to end, and makes sure you're not leaving legitimate reliefs on the table.

What's included
  • Estimated Chargeable Income (ECI) filing within 3 months of financial year end
  • Corporate tax return (Form C-S / Form C) preparation and IRAS submission
  • Tax computation and capital allowance claims
  • Start-Up Tax Exemption (SUTE) and Partial Tax Exemption (PTE) assessment
  • GST registration advisory — mandatory and voluntary
  • Quarterly GST return (F5) preparation and myTax Portal submission
  • Input tax credit identification and claims
  • IRAS correspondence and query management
Key deadlines we manage for you

ECI filing

Due within 3 months of your financial year end. Missing this triggers IRAS estimated assessments.

Corporate tax — 30 Nov

Form C-S or Form C due by 30 November every year. We prepare and file well ahead of deadline.

GST quarterly returns

Due 1 month after each quarter end — 30 Apr, 31 Jul, 31 Oct, 31 Jan. We file all four.

GST registration

Mandatory when revenue exceeds SGD 1 million. We monitor your threshold and register you on time.

⚠️ Missing your ECI deadline or GST registration threshold can result in significant IRAS penalties. One of the most common and costly mistakes we see in foreign-founded companies — and entirely avoidable with proper monitoring.
Tax reliefs we check for every client
  • Start-Up Tax Exemption (SUTE) — up to 75% exemption on first SGD 100,000 for new companies
  • Partial Tax Exemption (PTE) — available to all qualifying companies
  • Capital allowances on qualifying business assets
  • Section 14 deductions for qualifying business expenses
  • Enterprise Development Grant and other government grant tax treatment
"Most SMEs file their taxes correctly but don't claim everything they're entitled to. The difference between a compliant filing and an optimised one can be tens of thousands of dollars." — LUMA CFO
Pricing

Pro Bundle — includes corporate tax & GST

SGD 1,000 / month (starting from)

Tax and GST services are included in our Pro and Pro Max bundles. Pricing customised based on business complexity and transaction volume.

Who this is for
  • Singapore SMEs filing Form C-S or Form C for the first time
  • Companies approaching the SGD 1 million GST registration threshold
  • Foreign-founded companies unsure of their Singapore tax obligations
  • Business owners who want to make sure they're claiming every legitimate relief

Get your tax sorted.

WhatsApp us and we'll review your current tax position — no obligation, no jargon.

WhatsApp us today