Compound interest is money earning interest on itself. Here's why it matters so much: if you invest £1,000 at 7% annual return, after year 1 you have £1,070. Year 2 you earn 7% on £1,070, not the original £1,000. Over 30 years, £1,000 becomes £7,612 without adding another penny.
The key variables are rate of return, time, and frequency of compounding. Time is the most important. Starting at 25 versus 35 can double your retirement pot because you get an extra decade of compounding.
This is why the advice "start investing as early as possible" is so powerful. Even small amounts invested young beat large amounts invested late. A 22-year-old investing £100/month beats a 32-year-old investing £200/month in terms of final wealth, all else equal.
Debt compounds against you the same way. This is why credit card debt at 20% interest is so destructive — the balance grows rapidly if you only make minimum payments.
by kofifrimpong65154
· 10 upvotes
To get out of credit card debt efficiently, use the avalanche method: list all your debts by interest rate and pay minimum on all of them, then throw every spare pound at the highest-rate debt first. This minimises total interest paid.
Alternatively the snowball method (paying off smallest balance first regardless of rate) provides psychological wins that keep you motivated. Research shows many people stick to the snowball method better even though it costs slightly more in interest.
Either way, stop accumulating new debt while paying off old debt. Cut up the cards if needed. Call your card providers and ask for a rate reduction — many will lower it, especially for long-standing customers. A balance transfer card with 0% interest for 12-24 months can help if you qualify.
Track every penny using a budgeting app. Finding even £200/month extra to throw at debt makes a massive difference. Cook at home, pause subscriptions, sell things you don't use.
by ahmedmalik52059