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Updated for 2025/26

£15,251 vs £20,251 Salary Comparison

Compare a £15,251 salary against £20,251. Find out exactly how much more (or less) you will take home after tax.

Gross Difference
+£5,000
per year
Take Home Extra
+£300.00
per month
You Keep
72%
of the raise
5-Year Gain
+£18,000
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£15,251£20,251Difference
Gross Salary£15,251£20,251£5,000
Income Tax£536£1,536£1,000
National Insurance£214£614£400
Pension£0£0£0
Take-Home Pay (Yearly)
£14,500
£18,100
£3,600
Take-Home (Monthly)£1,208£1,508£300
Effective Tax Rate4.9%10.6%5.7%

£15,251

Gross£15,251
Take-Home£14,500
You Keep95.1%

£20,251

Gross£20,251
Take-Home£18,100
You Keep89.4%

Tax Band Analysis

Understanding where your money goes

£15,251

Tax BandBasic Rate
Marginal Rate20%
Income Tax£536.20
National Insurance£214.48
Take Home (Monthly)£1,208.36

£20,251

Tax BandBasic Rate
Marginal Rate20%
Income Tax£1,536.20
National Insurance£614.48
Take Home (Monthly)£1,508.36

What £300.00 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: £15,251 vs £20,251

£15,251

  • Gross Pay£15,251.00
  • Take Home (Year)£14,500.32
  • Take Home (Month)£1,208.36
  • Effective Tax Rate4.9%

£20,251

  • Gross Pay£20,251.00
  • Take Home (Year)£18,100.32
  • Take Home (Month)£1,508.36
  • Effective Tax Rate10.6%

The difference in take-home pay is £3,600 per year, which works out to £300.00 per month.