Skip to main content
logoFinsiva

Singapore Tax Calculators Guide

Learn how to accurately compute personal income tax, 9% GST, net take-home salary, and property stamp duty with Finsiva tools.

Singapore Financial & Tax Calculation Suite

Planning your personal or business finances in Singapore requires precise calculations. Whether you are estimating your yearly tax payable to IRAS, calculating company GST obligations, or determining buyer's stamp duty on a property purchase, Finsiva offers powerful, instant financial calculators tailored to Singapore tax laws.

Available Singapore Tax Calculators

1. Personal Income Tax Calculator

Applies YA 2026 progressive tax rates (0%–24%), accounts for Earned Income, SRS, and CPF reliefs, and calculates net monthly take-home pay.

Launch Income Tax Calculator →

2. GST Calculator (9%)

Instantly calculates GST inclusive, GST exclusive, and net tax payable for business invoicing and retail purchases at the 9% rate.

Launch GST Calculator →

3. Property Stamp Duty Calculator

Calculates Buyer's Stamp Duty (BSD) and Additional Buyer's Stamp Duty (ABSD) tiers based on buyer residency status and property profile.

Launch Stamp Duty Calculator →

Step-by-Step Income Tax Calculation Example

Consider a Singapore Citizen earning a gross annual salary of S$120,000 with the following claimed tax reliefs:

  • Earned Income Relief: S$1,000
  • CPF Employee Contributions: S$19,200
  • SRS Cash Top-up: S$10,000

Total Tax Reliefs: S$30,200

Chargeable Income: S$120,000 – S$30,200 = S$89,800

Applying YA 2026 Brackets:

  • Tax on First S$80,000 = S$3,350
  • Tax on Remaining S$9,800 @ 11.5% = S$1,127
  • Total Tax Payable: S$4,477 (Effective Tax Rate: ~3.73%)

Related Guides & Resources

To dive deeper into Singapore tax rules, explore our key guides: