Finance Calculator
Deposit Interest Calculator
Calculate maturity value by deposit amount, term, rate, compounding, and tax mode.
Maturity Amount
₩10,296,100
After-tax Interest
₩296,100
Pre-tax Interest
₩350,000
Tax
₩53,900
15.4%
- Principal
- ₩10,000,000
- Term
- 1y
- Annual Rate
- 3.5%
- Tax Mode
- Standard tax 15.4%
Related
Results are estimates from the entered values. Actual rates, fees, preferential conditions, deposit protection, tax eligibility, and limits depend on each financial product.
Check After-Tax Deposit Interest
Deposit searches often mix headline rate and actual maturity amount. Separate pre-tax interest, tax, and after-tax interest.
- Standard tax uses a 15.4% interest tax estimate.
- Tax-free and preferential modes depend on eligibility and product limits.
- Simple and monthly compound interest can produce different maturity values.
Deposit Interest Calculator Guide
The deposit interest calculator estimates pre-tax interest, tax, after-tax interest, and maturity amount from deposit amount, term, annual rate, compounding, and tax mode.
How to Calculate Deposit Interest
- 1.Enter deposit amount, term, and annual rate.
- 2.Choose simple interest or monthly compound interest and the tax mode.
- 3.Review pre-tax interest, tax, after-tax interest, and maturity amount.
Deposit Interest Calculator FAQ
What tax rate is used for standard taxation?
The calculator uses 15.4% as the standard Korean interest income tax estimate.
What is the difference between simple and monthly compound interest?
Simple interest applies interest to principal only. Monthly compound interest assumes interest is added monthly before the next month calculation.
Does this recommend high-rate deposits?
No. It calculates interest from the rate you enter. Product rankings and preferential conditions change over time.