Singapore's corporate tax system is administered by the Inland Revenue Authority of Singapore (IRAS). The headline rate is a flat 17% on chargeable income โ profit after allowable deductions โ for both local and foreign companies.
Start-Up Tax Exemption (SUTE) โ for qualifying new companies in their first three consecutive Years of Assessment:
- 75% exemption on the first S$100,000 of normal chargeable income
- 50% exemption on the next S$100,000
To qualify, the company must be: incorporated in Singapore, a Singapore tax resident for that Year of Assessment, with no more than 20 shareholders where at least one individual shareholder holds 10% or more of shares. Investment holding companies and property development companies are excluded.
Partial Tax Exemption (PTE) โ for all other companies (after the SUTE period, or those that don't qualify for SUTE):
- 75% exemption on the first S$10,000 of normal chargeable income
- 50% exemption on the next S$190,000
YA 2026 CIT Rebate โ the enhanced Budget 2026 measure is a 50% corporate-income-tax rebate, with a S$40,000 maximum benefit. Active companies meeting the local-employee condition may receive a S$2,000 cash grant instead where the rebate is not higher. IRAS applies the measure automatically.
Territorial tax system. Singapore taxes income accrued in or derived from Singapore, and foreign income remitted to Singapore. Foreign income that is not remitted into Singapore is generally not taxable. Exemptions also apply to certain qualifying foreign-sourced dividends, branch profits, and service income โ provided the foreign jurisdiction's headline tax rate is at least 15% and the income was taxed there.
No separate capital-gains tax. Gains that are capital in nature are generally not taxed, but the distinction from taxable trading or revenue gains depends on the facts of the transaction.
GST (Goods and Services Tax) is 9% (increased from 8% on 1 January 2024 โ no further changes announced for 2026 or 2027). GST registration is mandatory only when annual taxable turnover exceeds S$1 million. For most early-stage companies, GST is irrelevant. B2B services to overseas clients are typically zero-rated, meaning no GST is charged and collected.
Key compliance obligations:
- File Estimated Chargeable Income (ECI) with IRAS within 3 months of your financial year end
- File Corporate Income Tax Return (Form C/C-S/C-S Lite) by 30 November each year
- File Annual Return with ACRA within 7 months of financial year end
- Hold Annual General Meeting (AGM) or pass written resolutions in lieu
- Maintain statutory registers and company minutes
- Appoint a qualified company secretary within 6 months of incorporation
- GST quarterly filings if registered
Budget S$1,000โ3,000/year for a small trading company's accounting, tax filing, corporate secretarial, and ACRA annual return. Complex structures, GST, payroll, or transfer pricing add cost.