Hong Life CalculatorsHow it works
OPI (overall performance incentive) = annual salary × OPI rate; TAI (target achievement incentive) = monthly base pay × (first-half rate + second-half rate). The tax is estimated on a year-end-settlement basis: income tax on (salary + bonus) minus income tax on salary alone. Each uses the earned-income deduction, your other deductions, the 6–45% rate table and the earned-income tax credit; local income tax adds 10%. Social insurance on the bonus = health 3.595% + long-term care (13.14% of that) + employment 0.9% ≈ 4.97%. National pension is left out: its monthly base is capped and is set from the previous year’s pay. The tax actually withheld on payday follows the simplified withholding table and is corrected in the February year-end settlement. Samsung Electronics does not publish bonus rates in a regulatory filing; enter the rates announced to you. Independent calculator, not affiliated with Samsung Electronics.
⚠ Estimates for information only — not financial advice.
FAQ
Which salary is OPI based on?
OPI is reported as a percentage of annual salary (연봉), while TAI is a percentage of monthly base pay. Use the figures on your own pay statement.
When is the tax settled?
Tax is withheld on payday, and the final amount is settled in the February year-end settlement together with the rest of your pay.
Checked 11 Nov 2026. Income Tax Act (2026): art. 47 earned-income deduction (70/40/15/5/2%, cap ₩20 million), art. 55 basic rates 6–45% (₩14m/50m/88m/150m/300m/500m/1bn), art. 59 earned-income tax credit (55% / 30% above ₩1.3m; limits ₩740k→660k→500k→200k by total pay); local income tax 10% of income tax (Local Tax Act art. 103-3). Employee social insurance on pay, 2026: health 3.595% (7.19% total, Health Insurance Policy Deliberation Committee, Aug 2025), long-term care 13.14% of the health premium (Long-Term Care Committee, Nov 2025), employment insurance 0.9%. Reported OPI rate: Newsis (30 Jan 2026) and The Fact (8 Feb 2026) — reference only, not a company disclosure.