Updated for 2025/26
£15,121 vs £21,171 Salary Comparison
Compare a £15,121 salary against £21,171. Find out exactly how much more (or less) you will take home after tax.
Gross Difference
+£6,050
per year
Take Home Extra
+£363.00
per month
You Keep
72%
of the raise
5-Year Gain
+£21,780
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
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Comparison Results
| Metric | £15,121 | £21,171 | Difference |
|---|---|---|---|
| Gross Salary | £15,121 | £21,171 | £6,050 |
| Income Tax | £510 | £1,720 | £1,210 |
| National Insurance | £204 | £688 | £484 |
| Pension | £0 | £0 | £0 |
| Take-Home Pay (Yearly) | £14,407 | £18,763 | £4,356 |
| Take-Home (Monthly) | £1,201 | £1,564 | £363 |
| Effective Tax Rate | 4.7% | 11.4% | 6.7% |
£15,121
Gross£15,121
Take-Home£14,407
You Keep95.3%
£21,171
Gross£21,171
Take-Home£18,763
You Keep88.6%
Tax Band Analysis
Understanding where your money goes
£15,121
Tax BandBasic Rate
Marginal Rate20%
Income Tax£510.20
National Insurance£204.08
Take Home (Monthly)£1,200.56
£21,171
Tax BandBasic Rate
Marginal Rate20%
Income Tax£1,720.20
National Insurance£688.08
Take Home (Monthly)£1,563.56
What £363.00 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: £15,121 vs £21,171
£15,121
- Gross Pay£15,121.00
- Take Home (Year)£14,406.72
- Take Home (Month)£1,200.56
- Effective Tax Rate4.7%
£21,171
- Gross Pay£21,171.00
- Take Home (Year)£18,762.72
- Take Home (Month)£1,563.56
- Effective Tax Rate11.4%
The difference in take-home pay is £4,356 per year, which works out to £363.00 per month.