A 5% cash back rate means that for every pound you spend on eligible purchases, you earn 5p back in the form of cash rewards. For example, if you spend £200 on a purchase that qualifies for 5% cash back, you would receive £10 in rewards.

This type of reward is typically offered on specific spending categories on credit cards or during promotional periods at retailers. They can often be redeemed as statement credits, direct deposits, or even gift cards, depending on the program.

How 5% cash back is calculated

To find 5% of any amount, multiply it by 0.05. So 5% of £100 is £5.00, and 5% of £1,000 is £50.00. As a cash back rate, that's 5 pence back for every £1 you spend.

5% of common amounts

Amount 5% of it
£20 £1.00
£50 £2.50
£100 £5.00
£200 £10.00
£500 £25.00
£1,000 £50.00
£2,000 £100.00

How 5% compares over a year

A percentage point sounds small and isn't. Here's what 5% returns against the other common rates, at spend levels people actually reach.

Spend per year 5% 1% 1.5% 2% 3%
£5,000 £250 £50 £75 £100 £150
£10,000 £500 £100 £150 £200 £300
£25,000 £1,250 £250 £375 £500 £750
£50,000 £2,500 £500 £750 £1,000 £1,500

At £50,000 a year, the difference between 5% and 1% is £2,000. Worth weighing against annual fees, category caps and whether the higher rate applies to everything you buy — a flat 5% on all spending often beats a higher rate on one category.

How This 5% Cash Back Calculator Works

This calculator helps you estimate your earnings at a 5% cash back rate based on your spend amount.

How 5% cash back is calculated

  • Cash back rate: You earn 5% back on every dollar/pound spent.

How to use this calculator

  1. Enter your purchase amount or total spend.
  2. The calculator instantly shows your cash back earnings.
The calculator shows:
  • Cash back earned: spend × 5%

How it's calculated

  • Cash back = spend × 0.05
Examples: A £20 purchase would earn you £1.00 in cash back. A £1,000 purchase would earn you £50.00 in cash back.

This calculator provides estimates. Actual earnings may vary based on eligible purchase categories and program terms.

Full breakdown: For data sources and deeper math, see our Full Rewards Methodology.

Frequently asked questions

How much is 5 percent cash back?

5% cash back is 5p back on the pound. So for every £1 spent, you would get 5p back.

How much cash back can I earn at 5% cash back?

It depends on how much you spend. You can use the 5% Cash Back Calculator on this page to calculate total cash back based on your spend.

Robert Flowers III
Written by Robert Flowers III · Founder, Developer, and Programmer

Robert Flowers III is the founder and developer of The Point Calculator, a multi-region credit-card rewards calculator he launched in 2017 after earning a bachelor’s degree in mathematics with a minor in computer science. A seasoned traveler who began collecting points and miles in 2015, Robert has visited more than 15 countries—often flying and staying at top hotels using rewards—and holds elite status with several programs. He designs and codes every calculator himself, continually researching program updates so readers can accurately estimate rewards, compare cards, and maximize the value of their points and miles.

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