This is how interest is added to interest at each charging period, such as monthly or yearly.
Example;
6% compound interest charged annually on £1,000 over five years (to nearest £):
| 1 | £1,000 | 6 | £1,000 x 0.06 | 60 | £1,060 |
| 2 | £1,060 | 6 | £1,060 x 0.06 | 64 | £1,124 |
| 3 | £1,124 | 6 | £1,124 x 0.06 | 67 | £1,191 |
| 4 | £1,191 | 6 | £1,191 x 0.06 | 71 | £1,262 |
| 5 | £1,262 | 6 | £1,262 x 0.06 | 76 | £1,338 |
As a rule of thumb, the amount owed, including accrued interest, will typically double every 12 years, assuming an interest rate of 6%.
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