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Interest, decoded

Lesson 6 of 12 in our free Saving & Emergency Funds guide: a 5-minute money game with the key points below.

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Questions you'll answer

£1,000 in an account paying 4% AER. How much interest after one year (before any tax)?

Which account pays more over a year on £1,000?

Quick facts

  • Fact: “AER includes the effect of interest being added during the year.” — That's why it's the fair comparison number.
  • Myth: “An introductory bonus rate lasts forever.” — Bonus rates often drop after a set period. Set a reminder to check.
  • Fact: “If the Bank of England base rate changes, savings rates often follow.” — Variable savings rates tend to move with the base rate (currently 3.75%).

More in Saving & Emergency Funds

All 12 Saving & Emergency Funds lessons