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Updated for 2025/26

£15,258 vs £20,518 Salary Comparison

Compare a £15,258 salary against £20,518. Find out exactly how much more (or less) you will take home after tax.

Gross Difference
+£5,260
per year
Take Home Extra
+£315.60
per month
You Keep
72%
of the raise
5-Year Gain
+£18,936
cumulative

Entry-Level Career Progression

This comparison is typical for early career moves or first promotions. At this salary range, most of your income is taxed at the basic rate (20%), so you keep a higher percentage of any raise.

  • Negotiate hard - you keep ~70-80% of any increase at this level
  • Consider employers offering good pension matching (often worth more than small salary differences)
  • Look for roles with clear progression paths to higher bands
  • Factor in benefits like free lunches, gym memberships, or transport subsidies

Compare Salaries

Enter multiple salaries to compare take-home pay for 2025/26

£
£

Comparison Results

Metric£15,258£20,518Difference
Gross Salary£15,258£20,518£5,260
Income Tax£538£1,590£1,052
National Insurance£215£636£421
Pension£0£0£0
Take-Home Pay (Yearly)
£14,505
£18,293
£3,787
Take-Home (Monthly)£1,209£1,524£316
Effective Tax Rate4.9%10.8%5.9%

£15,258

Gross£15,258
Take-Home£14,505
You Keep95.1%

£20,518

Gross£20,518
Take-Home£18,293
You Keep89.2%

Tax Band Analysis

Understanding where your money goes

£15,258

Tax BandBasic Rate
Marginal Rate20%
Income Tax£537.60
National Insurance£215.04
Take Home (Monthly)£1,208.78

£20,518

Tax BandBasic Rate
Marginal Rate20%
Income Tax£1,589.60
National Insurance£635.84
Take Home (Monthly)£1,524.38

What £315.60 Extra Buys You

Real-world value of the take-home difference

Monthly Subscriptions
Netflix, Spotify, gym - £100.00/mo
Weekend Breaks
1-2 UK getaways per month at this budget

Full Comparison: £15,258 vs £20,518

£15,258

  • Gross Pay£15,258.00
  • Take Home (Year)£14,505.36
  • Take Home (Month)£1,208.78
  • Effective Tax Rate4.9%

£20,518

  • Gross Pay£20,518.00
  • Take Home (Year)£18,292.56
  • Take Home (Month)£1,524.38
  • Effective Tax Rate10.8%

The difference in take-home pay is £3,787 per year, which works out to £315.60 per month.