mengira / calculatorsSEA Regional Suite
SSF / RMF Personal Income Tax Savings. Estimate tax savings from SSF and RMF mutual fund deductions under Thai 2024 brackets. Interactive Mengira financial calculator with deterministic math: inputs are processed client-side, results update reactively, formulas documented in the on-page explainer.
Thailand

SSF / RMF Personal Income Tax Savings

Estimate tax savings from SSF and RMF mutual fund deductions under Thai 2024 brackets.

฿ 1,200,000
฿ 100,000

Capped at ฿200,000 and 30% of income.

฿ 100,000

Capped at ฿500,000 and 30% of income.

Estimated tax saved

฿ 50,000

Marginal bracket at this income: 25%

Eligible deduction

฿ 200,000

Tax before deduction

฿ 165,000

Tax after deduction

฿ 115,000

Effective save rate

25.0%

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Next steps

Recommendations
Pick SSF/RMF funds
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Use tax savings as DP.
Stack with PVD
Add Provident Fund deductions.

How the math works

Thai personal income tax follows a progressive bracket structure. Deductions like SSF and RMF reduce taxable income before tax is computed.

  1. 01

    Eligible deduction

    Deduction = min(SSF, ฿200k, 30% × Income) + min(RMF, ฿500k, 30% × Income)
  2. 02

    Progressive tax

    Tax(I) = Σ (min(I, upper_b) − lower_b) × rate_b
    Brackets: 0–150k:0%, 150k–300k:5%, 300k–500k:10%, 500k–750k:15%,
    750k–1M:20%, 1M–2M:25%, 2M–5M:30%, >5M:35%
  3. 03

    Tax saved

    TaxSaved = Tax(Income) − Tax(Income − Deduction)
Estimator only. Excludes personal allowance, spouse, child, parent, insurance and provident fund deductions.