Taiwan Income Tax Guide 2026: Brackets, Deductions & Filing

How Taiwan's Income Tax System Works

Taiwan levies a progressive income tax on individuals who are tax residents — generally anyone with household registration (戶籍) or who resides in Taiwan for 183 days or more in a calendar year. Residents are taxed on their worldwide income; non-residents are taxed only on Taiwan-sourced income at a flat 18% (or 6% for certain salary income under 1.5x the minimum monthly wage threshold).

The tax year aligns with the calendar year (January 1 – December 31). Annual tax returns must be filed between May 1 and May 31 of the following year. Most salaried employees can complete their filing online using the Ministry of Finance's eTax platform or the mobile Shuì (稅) app, which pre-populates income data reported by employers and financial institutions.

Taiwan's tax system is household-based for married couples. Spouses must file jointly but may elect to calculate tax separately on salary or investment income. This can result in meaningful savings when both spouses have income, because each spouse's salary income is taxed independently under the progressive brackets before being summed.

Use the WageEngine Taiwan calculator to see your estimated net take-home pay at any salary level. The calculator applies the 2026 brackets, standard deduction, and salary special deduction automatically.

The 5 Progressive Tax Brackets for 2026

Taiwan's 2026 income tax brackets for consolidated income tax (綜合所得稅) are:

• 5% on net taxable income up to NT$610,000 • 12% on NT$610,001 – NT$1,380,000 • 20% on NT$1,380,001 – NT$2,770,000 • 30% on NT$2,770,001 – NT$5,190,000 • 40% on net taxable income above NT$5,190,000

These rates apply to net taxable income — your gross income minus exemptions, deductions, and special deductions. For a typical salaried employee, the effective tax rate is significantly lower than the marginal bracket rate because the first layers of income are taxed at 5% and 12%.

For example, a single employee earning NT$1,000,000 in annual gross salary with standard deductions has a net taxable income of approximately NT$336,000 — firmly within the 5% bracket. Their income tax is about NT$16,800, yielding an effective rate of just 1.7%. Even at NT$2,000,000 gross, the effective rate is typically under 10% due to the generous deduction structure.

See the detailed bracket calculations at any salary using the Taiwan tax bracket page, or enter your exact salary in the calculator for a precise breakdown.

Deductions and Exemptions

Taiwan offers three layers of deductions that significantly reduce taxable income:

1. **Personal exemption (免稅額)**: NT$97,000 per person in the household. For taxpayers or dependents aged 70+, the exemption increases to NT$145,500.

2. **Standard deduction (標準扣除額)**: NT$136,000 for single filers; NT$272,000 for married couples filing jointly. Alternatively, taxpayers may choose itemized deductions (列舉扣除額) if the total exceeds the standard amount — common items include insurance premiums (up to NT$24,000/person), medical expenses (no cap), mortgage interest (up to NT$300,000/year), and charitable donations.

3. **Special deductions (特別扣除額)**: These include the salary income special deduction (薪資所得特別扣除額) of NT$218,000 per earner, the savings and investment special deduction (up to NT$270,000 per household), the disability special deduction (NT$218,000 per qualified person), and the pre-school child deduction (NT$150,000 per child under 6).

For a single salaried employee, the combined effect of the personal exemption (NT$97,000) + standard deduction (NT$136,000) + salary special deduction (NT$218,000) = NT$451,000 is shielded from tax. In the WageEngine calculator, we model the standard deduction and salary special deduction automatically to give you an accurate after-tax estimate. The personal exemption (免稅額) is also included. Together these form the NT$328,000 allowance and NT$136,000 deduction shown in the tax data.

Filing Your Tax Return

Taiwan's annual income tax filing season runs from May 1 to May 31. Most salaried employees find the process straightforward because the National Taxation Bureau pre-populates your return with employer-reported salary, bank interest, dividend income, and insurance data.

You have several filing options:

• **Online filing via eTax portal**: Download the desktop application from the Ministry of Finance website. Log in with your Citizen Digital Certificate (自然人憑證), Health Insurance Card + PIN, or Mobile ID. The system pulls all reported income and pre-fills deductions. Review, adjust, and submit.

• **Mobile filing**: The 手機報稅 app (available on iOS and Android) allows streamlined filing for simpler returns. Authenticate via Health Insurance Card number + household registration data, review income, and submit directly from your phone.

• **In-person filing**: Visit your local National Taxation Bureau office. Staff can assist with complex returns.

Key dates: Withholding tax statements (扣繳憑單) are issued by employers by February 28. The filing period is May 1–31. Late filing incurs a surcharge of 10%–30% of the tax owed. Refunds for overpaid withholding tax are typically processed within 2–3 months after filing.

For most salaried workers, the withholding tax deducted monthly by employers is close to the final liability. Use the WageEngine calculator before filing season to estimate whether you will owe additional tax or receive a refund.

Tax-Saving Strategies for Salaried Employees

Several legal strategies can reduce your Taiwan income tax liability:

**Maximize special deductions**: Ensure you claim all applicable special deductions. The pre-school child deduction (NT$150,000 per child under 6) and disability deduction are commonly overlooked.

**Choose between standard and itemized deductions**: If your total insurance premiums, medical expenses, and mortgage interest exceed NT$136,000 (single) or NT$272,000 (married), itemized deductions save more. Medical expenses have no cap, so a year with significant medical costs strongly favors itemizing.

**Spouse separate salary calculation**: When both spouses earn salary income, electing to calculate salary income tax separately (薪資所得分開計算) almost always results in lower total household tax than combining everything.

**Voluntary pension contributions**: Contributions to a Labor Pension individual voluntary account (勞退自提) up to 6% of your monthly wage are tax-deductible. This is one of the most effective tax-saving tools for salaried employees — it reduces taxable income dollar-for-dollar while building retirement savings.

**Charitable donations**: Donations to registered charities are deductible up to 20% of gross consolidated income. Donations to the government or designated educational institutions have no cap.

For a quick view of how much tax you can expect to pay at different salary levels, compare scenarios using the Taiwan salary calculator. Try entering salaries like NT$600,000, NT$960,000, or NT$1,500,000 to see the effective rate change across brackets.