Compound Interest & Savings Calculator

How it works

• The annual return is converted to a monthly rate ((1+r)^1/12−1); contributions are made at the end of each month.
• In Korea, interest and dividends are taxed at 15.4% (withheld); ISA and pension accounts can reduce this.
• Investment returns are not guaranteed.

FAQ

What is the rule of 72?

Divide 72 by the annual return (%) to estimate how many years it takes to double. At 6%, about 12 years.

How is interest taxed in Korea?

Interest income is taxed at 15.4% (14% national + 1.4% local), withheld at source.