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Tax
Estimate South Korean retirement income tax through the statutory service-year deduction, converted-salary deduction, and tax brackets.
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These values are calculated from your current inputs. Check the input units and this calculator’s stated assumptions or included scope alongside the results.
Primary result: Estimated total tax
Supporting value: Retirement income tax
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The calculator follows the current National Tax Service structure: subtract the service-year deduction, annualize the remaining amount by 12/service years, apply the converted-salary deduction and statutory income-tax brackets, then scale the tax back by service years/12. Local income tax is shown as 10% of retirement income tax.
Verified: Aug 26, 2026
Mid-service settlements, tax credits, tax deferral, statutory conversion of service months into years, and special non-taxable items can change the final withholding amount. Use the retirement-income withholding certificate issued by the payer as the final reference.