Singapore Income Tax 2026: Step-by-Step Calculation Guide

Singapore's personal income tax is widely regarded as one of the most competitive in Asia — but the headline rates only tell half the story. The progressive structure, generous reliefs, and S$80,000 relief cap mean the effective rate most residents actually pay is far lower than the marginal rate at the top of their income bracket.

This guide walks through Year of Assessment (YA) 2026 — taxing income earned in calendar year 2025 — step by step, with a worked example.

How Singapore's Progressive System Works

Income tax is calculated bracket by bracket. Only the income above each threshold is taxed at the next rate. This is critical: a salary increase that pushes you into a higher bracket does not retax your existing income.

YA 2026 Resident Tax Rates

The top three bands (22%, 23%, 24%) were introduced in YA 2024 and are in full effect for YA 2026.

Tax Residency — The 183-Day Rule

You are taxed as a resident if any of the following apply for the YA in question:

• You are a Singapore Citizen or Permanent Resident who normally resides here
• You are a foreigner who stayed or worked in Singapore for at least 183 days in the preceding calendar year
• You are a foreigner who worked in Singapore for a continuous period straddling two years totalling at least 183 days

Non-residents are taxed at a flat 15% on employment income or the resident rates (whichever is higher) and at 24% on director's fees, consultancy income, and most other Singapore-sourced income — with no access to personal reliefs.

The Five-Step Calculation

Step 1 — Total Employment Income

Start with everything your employer paid you in the calendar year:

• Basic salary
• Bonuses, commissions, incentives
• Allowances (transport, meal, housing) unless specifically exempt
• Benefits-in-kind (company car, accommodation provided)
• Stock options and share awards (taxable on exercise/vesting)

Step 2 — Less Allowable Deductions

The most common is the employment expense deduction: the lower of S$2,000 or 2% of gross employment income. You can claim more with substantiating receipts for genuinely incurred employment expenses.

This gives you Assessable Income.

Step 3 — Apply Personal Reliefs

The big one. Common reliefs for YA 2026:

All personal reliefs combined are capped at S$80,000 per YA.

Two reliefs you may have seen elsewhere that no longer apply:

• Course Fees Relief — LAPSED from YA2026 (final claim was YA2025 for courses paid in 2024). Many third-party tax guides still list this as a S$5,500 relief; it does not exist for YA2026 onwards.
• Foreign Domestic Worker Levy (FDWL) Relief — LAPSED from YA2025 (final claim was YA2024). The concessionary levy from MOM continues separately, but the income-tax relief has ended.

Step 4 — Chargeable Income

Chargeable Income = Assessable Income – Total Reliefs

Step 5 — Apply the Tax Table

Compute tax using the bracket table, then apply any Personal Income Tax Rebate (announced from time to time in the Budget).

Worked Example: S$80,000 Earner

A 35-year-old Singapore Citizen, married, no children, earning S$80,000 gross per year, completed NS, contributing maximum SRS and a S$2,000 CPF cash top-up to parents.

Step 1 — Employment income: S$80,000

Step 2 — Employment expense deduction: S$1,600 (2% of S$80,000) Assessable income: S$78,400

Step 3 — Reliefs:

Step 4 — Chargeable income: S$78,400 – S$37,300 = S$41,100

Step 5 — Tax computation:

Effective tax rate: 0.78% of gross income.

This is the headline-versus-effective gap that surprises foreigners. A taxpayer in a "7% marginal bracket" pays under 1% of gross when standard reliefs are fully utilised.

Filing — Deadlines and Auto-Inclusion

Deadlines for YA 2026:

• Paper filing: 15 April 2026
• e-filing via myTax Portal: 18 April 2026

If your only income is employment income from an AIS employer — most large Singapore employers participate — IRAS pre-fills your return automatically. You may receive a Notice of Assessment without needing to file at all.

You still need to file if you have:

• Rental income from property
• Freelance, gig, or self-employment income
• Director's fees
• Foreign-sourced income remitted to Singapore (taxable in some cases)
• Investment income outside the standard exemptions
• Non-standard reliefs to claim

Payment

Tax is due within one month of the Notice of Assessment. Most taxpayers opt for the interest-free GIRO instalment plan, which spreads payment over up to 12 months. The plan is granted automatically if you have a clean payment history.

Personal Income Tax Rebate

The government occasionally announces a one-off rebate in the Budget. Recent rebates:

• YA 2024: 50% of tax payable, capped at S$200
• YA 2025: 60% of tax payable, capped at S$200 (SG60 package)
• YA 2026: No rebate (Budget 2026 confirmed)

Treat each rebate as a one-off — do not assume an annual rebate exists for the year you are filing unless the most recent Budget explicitly announces one.

Bottom line

Singapore's progressive tax system is generous to middle-income earners once reliefs are factored in — most professionals pay an effective rate well below 5%. The key is to use every relief you legitimately qualify for: CPF top-ups, SRS, parent relief, and NSman relief routinely shave thousands off the final bill.

Use the Income Tax Calculator to plug in your salary, CPF, and reliefs and see your exact tax payable, and check the Tax Relief Calculator to make sure you are not leaving any relief unclaimed.