Savings Calculator
Calculate maturity amount and interest for monthly savings deposits.
상세 내역
Overview
The Savings Calculator computes the maturity amount when making regular monthly deposits. Enter the monthly deposit, interest rate, and term to see pre-tax and after-tax interest along with the total amount receivable at maturity.
Formula
Interest (simple) = Monthly Deposit × Monthly Rate × (Months × (Months + 1)) / 2. Maturity Amount = Total Deposits + Interest - Tax (15.4% on interest income in Korea).
How to Use
- 1Enter the monthly deposit amount.
- 2Enter the annual interest rate (%).
- 3Set the savings term in months.
- 4Select the tax type (standard 15.4%, tax-exempt, or preferential 9.5%).
- 5Click Calculate to view the maturity payout.
Examples
KRW 300K/month for 12 Months at 3.5%
Monthly deposit of KRW 300,000 into a 12-month installment savings account at 3.5% annual rate
KRW 500K/month for 24 Months at 4%
Monthly deposit of KRW 500,000 into a 24-month installment savings account at 4% annual rate
Background
Korea's installment savings culture took root during the 1960s-70s economic development era, when the government promoted national savings campaigns as a driver for growth. Installment savings (jeokgeum) involves making fixed monthly deposits over a set term, making it the most fundamental tool for building a lump sum. Today, Korean financial products offer various tax treatments: standard taxation (15.4% on interest), preferential rate (9.5%), and tax-exempt options. Government-backed products like the Youth Preferential Savings provide both higher rates and tax benefits simultaneously.
Tips
- ✔Installment savings typically use simple interest; consider reinvesting at maturity for compounding benefits.
- ✔Look for tax-exempt or preferential savings products to reduce the tax burden on interest.
- ✔Fixed installment savings usually offer higher rates than flexible deposit accounts.
FAQ
Q. What is the difference between installment savings and a time deposit?
Installment savings involve making regular monthly deposits over a fixed term, while a time deposit requires a lump-sum deposit upfront. Time deposits generally offer slightly higher interest rates.
Q. How is the 15.4% interest income tax calculated?
In Korea, interest income is subject to 14% income tax plus 1.4% local income tax (10% of income tax), totaling 15.4% withheld at source. Tax-exempt or preferential-rate products can reduce this.
Q. What happens if I withdraw early?
Early withdrawal typically results in a penalty rate (usually 50–70% of the agreed rate), significantly reducing interest earned. Consider a savings-backed loan before breaking the contract.
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