Real Estate & Tax Β· π°π· Korea
Korean Overseas Stock Tax Calculator
Korean overseas stock capital gains (22%) and dividend (15.4%) tax calculator.
About this tool
Korean Overseas Stock Tax Calculator integrates capital-gains and dividend tax on foreign stocks (US / CN / JP β¦) for Korean residents. It applies the 22% capital-gains rate (20% income + 2% local) with the β©2.5M annual deduction, 5-year loss carry-forward, 15.4% dividend tax, and the β©20M financial-income aggregation threshold. Enter purchase/sale FX rates per holding and FX gains/losses are auto-split out. The tool also shows the aggregated-tax (progressive) scenario when interest+dividends top β©20M. All inputs stay in the browser β useful as a pre-filing sanity check before the May year-end income tax return.
Use cases
Scenario 1
S&P500 ETF sale β 22% gains tax
Compute the actual tax from gains (including FX) after the β©2.5M basic deduction Γ 22%.
Scenario 2
Dividend + gains aggregation
Compare aggregated (progressive) vs separate taxation when dividends + interest cross β©20M.
Scenario 3
Loss carry-forward β 5 yr
Apply prior-year losses (5-yr window) to this year's gains and quantify the tax savings.
Scenario 4
FX loss separation
If the USD gain is offset by KRW strengthening, the FX-loss split is shown automatically.
Scenario 5
Pre-filing May return
Estimate the May filing total and feasible installment plan ahead of submission.
Features
- 22% capital-gains tax + β©2.5M basic deduction
- 5-yr loss carry-forward simulation
- 15.4% dividend tax + β©20M aggregation threshold branching
- Auto FX gain / loss separation
- Multi-holding, multi-trade entry
- Filing-style summary table + URL share
- Fully in-browser, no server
Frequently asked
- Q. Why 22%?
- A. 20% income + 2% local β the separate-taxation rate Korea applies to overseas stock gains.
- Q. How does the β©2.5M deduction apply?
- A. Gain β β©2.5M, then Γ 22%. Below β©2.5M effectively zero tax (still report).
- Q. Does FX loss count?
- A. Gain is computed in KRW so FX loss enters the calculation; the tool splits it from the price move. Net-loss treatment, however, only happens at the trade level.
- Q. Can I file with this output?
- A. It's a pre-check. File via Hometax or a CPA, attaching brokerage statements and foreign-withholding evidence.
- Q. Is this an NTS official tool?
- A. No. NTS / Hometax are independent; this is an unaffiliated calculator and may lag policy updates.
Sources / references
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How we run it / disclaimer
This tool is advisory and does not constitute legal, tax, medical, or financial advice. All calculations and document generation run in your browser; inputs are never sent to a server. Ads follow Google AdSense policy and are kept separate from tool accuracy.