Average Salary In Swansea (Before & After Tax) For 2025

The median annual salary in Swansea is currently £29,333 and the mean (average) is £31,471 before tax.

The median salary means half of all employees in Swansea earn more than £29,333 and half earn less.

The mean (average) salary number of £31,471 is calculated by taking all the salaries in Swansea adding them up and then dividing by the total number of jobs (currently 84,000 which is 0.36% of all UK jobs).


 

Over the past 12 months the Swansea median salary of £29,333 has increased by 8.80% which places it 7.18% Below the median salary of the UK as a whole.

The mean salary of £31,471 has increased 5.10% during the same time period and now standards at 17.67% Below the mean salary of the UK.

Income (Before Tax) By Decile In Swansea

Top 10%: x (and above)
Top 20% £43,447
Top 25% £41,410
Top 30% £37,544
Top 40% £33,210
Bottom 40% £25,119
Bottom 30% £22,067
Bottom 25% £18,961
Bottom 20% £22,067
Bottom 10% £9,323 (and below)

Average Monthly, Weekly & Hourly Pay (Before Tax) In Swansea

The median salary of £29,333 works out to:

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  • £2,444.42 per month
  • £546.00 per week
  • £15.66 per hour

The mean salary of £31,471 works out to:

  • £2,622.58 per month
  • £599.50 per week
  • £18.94 per hour

Men vs Women Salary Differences (Before Tax) In Swansea

Of the 84,000 jobs in Swansea, 39,000 (46.43%) were held by men and 46,000 (54.76%) were held by women.

The median salary for men was £32,056 vs £26,236 for women.

The mean salary for men was £35,477 vs £28,076 for women.

This means men in Swansea are paid 22.18% more based on median salaries or 26.36% more based on mean salaries than women.

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(Note this difference does not take into account the type of jobs held by men vs women just raw salary numbers)

Average Take-Home After-Tax Income In Swansea

The calculations below look at how much money the most typical worker gets to keep after income tax, employee national insurance and standard 5% employee pension contributions.

Based on Median Salary of £29,333:

  • Salary Subject to Tax: £15,608.35
  • Income Tax Owed: £3,121.67
  • National Insurance: £1,341.04
  • Employee Pension Deduction: £1,154.65

Take-Home Pay: £23,715.64 (80.85% of gross salary)
Total Gross Pension Contributions (Employee + Employer): £1,847.44

Based on Mean Salary of £31,471:

  • Salary Subject to Tax: £17,639.45
  • Income Tax Owed: £3,527.89
  • National Insurance: £1,512.08
  • Employee Pension Deduction: £1,261.55

Take-Home Pay: £25,169.48 (79.98% of gross salary)
Total Gross Pension Contributions (Employee + Employer): £2,018.48

How Expensive Is It To Employ Someone In Swansea?

The direct cost to employee someone includes salary, employer national insurance and employer pension contributions (3%).

Based on the median pay in Swansea it works out to:

  • Salary: £29,333
  • Employer National Insurance: £3,649.95
  • Employer Pension Contribution: £692.79

Total Cost To An Employer: £33,675.74 per year

Based on the mean pay in Swansea it works out to:

  • Salary: £31,471
  • Employer National Insurance: £3,970.65
  • Employer Pension Contribution: £756.93

Total Cost To An Employer: £36,198.58 per year

Income Tax And National Insurance Paid By Workers In Swansea

Finally, how much income tax and national insurance do people in Swansea pay altogether?

The calculations below show the combined totals based only on median and mean salaries. However, the actual number is significantly higher as “The 10% of income taxpayers with the largest incomes contribute over 60% of income tax receipts.”

If all workers in Swansea paid income tax and national insurance based on the median salary of £29,333 the combined income tax and national insurance (employer and employee) paid would be £681,463,440.

If all workers in Swansea paid income tax and national insurance based on the mean salary of £31,471 the combined income tax and national insurance (employer and employee) paid would be £756,892,080.

Swansea Tax Calculator

More Salary Data By City

All the data presented here comes from the Office of National Statistics.

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