When you invest money, it earns interest. Soon after, your initial investment plus the interest earned will now earn interest – in other words, you receive interest on your interest. This is known as compounding – a powerful tool that can help you grow your money over time.
The bottom line is: the sooner you start investing, the harder compounding will work for you.
Year one: You invest one rand. You earn 10% interest on it. After one year, your rand will be worth R1.10.
Year two: Your R1.10 earns 10% interest. At the end of year two, your R1 investment is now worth R1.21.
In the first year, you earned 10c, but in the second year you received 11c – in other words, you earned interest on your interest, or compound interest. Compounding gets even more radical for share investors: you can re-invest dividends to buy new shares, which will then also pay dividends, which can then be re-invested to buy even more shares which will pay dividends, and so on.
Compounding has a dark side – however it will only work against you if you borrow money. The interest charged on your credit will earn more interest, quickly snowballing into a massive debt.