How to Make a Meaningful Salary Comparison in the UK

Understanding Salary Comparison in the UK

When you search for a new job or negotiate a pay rise, you'll often come across terms like "average salary" or "median pay." But what do these figures actually mean, and how reliable are they for a fair salary comparison? The answer depends on which statistic you use, where it comes from, and whether you're looking at gross pay or what lands in your bank account.

This article explains what official UK salary statistics measure, how they differ from advertised salaries, and what you need to consider when comparing pay across roles, regions, and industries.

What the Official Statistics Measure

The most authoritative source for UK earnings data is the Office for National Statistics (ONS) Annual Survey of Hours and Earnings (ASHE). This survey collects actual payments made to employees from a 1% sample of PAYE records. It is not based on job adverts or self-reported figures – it reflects real pay received by employees in April each year.

Median vs Mean

ONS ASHE reports both median and mean earnings, but it strongly recommends the median as the best measure of "typical" pay. The median is the middle value when all salaries are ranked from lowest to highest – half of employees earn more, half earn less. The mean is the simple average, which can be pulled up by a relatively small number of very high earners. For example, the median full-time annual salary in April 2025 was £39,039, while the mean was around £45,800. If you use the mean, you might overestimate what a typical worker earns.

Full-Time vs All Employees

A common mistake in salary comparison is mixing full-time and part-time figures. ONS ASHE provides separate medians for full-time employees and for all employees (including part-time). In 2025, the median annual salary for all employees was £32,890, significantly lower than the full-time median because part-time workers earn less on an annual basis. When comparing job offers, always check whether the advertised role is full-time or part-time and use the appropriate benchmark.

Hourly, Weekly, and Annual Pay

ASHE also publishes hourly and weekly earnings. Median hourly pay (excluding overtime) for full-time employees was £19.67 in April 2025. Median weekly earnings for full-time employees were £766.60. These figures are useful for comparing roles with different hours or overtime patterns. However, annual figures are based on employees who have been in the same job for at least a year, so they may not reflect new hires or those with irregular work patterns.

How Advertised Pay Differs

Job adverts often show a salary range that may be higher or lower than the median for that occupation. Advertised salaries are influenced by market demand, company size, location, and seniority. For example, a primary school teacher's median salary is around £38,400 (ONS ASHE), but a specific school may advertise £36,000 to £42,000 depending on experience and London weighting. Similarly, an HGV driver's median is £36,000, but agencies may offer more for urgent roles.

When making a salary comparison, it's important to look at the median for your specific occupation and region, not just the national figure. The ONS provides detailed breakdowns by occupation, industry, and region in its ASHE release. For instance, caring, leisure and other service occupations saw the largest growth in median weekly earnings (7.1%) between 2024 and 2025, partly due to National Living Wage increases.

Take-Home Pay and Tax Considerations

Gross salary is only part of the picture. Your take-home pay depends on income tax, National Insurance, pension contributions, and student loan repayments. For a salary of £35,000 in the rest of the UK (using 2026/27 HMRC bands), the effective deduction rate is about 17.9%, leaving net annual pay of £28,719 (£2,393 per month). That's a significant difference from the headline figure.

Scotland's Different Income Tax Bands

If you work in Scotland, income tax bands are different from the rest of the UK. Scottish taxpayers face bands of 19%, 20%, 21%, 42%, 45%, and 48% (depending on earnings), compared to the rest of UK's 20%, 40%, and 45%. This means that for the same gross salary, take-home pay in Scotland can be slightly lower or higher depending on your income level. Always factor this in when comparing job offers across borders.

Regional and Occupational Variations

Salary comparison is not just about national medians. ONS ASHE shows that median weekly earnings for full-time employees increased across all UK regions in 2025, with Northern Ireland seeing the highest growth (7.4%). However, absolute levels vary widely. London typically has the highest median earnings, but also higher living costs. A salary of £35,000 may be comfortable in the North East but tight in London.

Age also plays a role. According to Sage Advice UK (citing ONS data), median annual earnings for 18-21 year olds are £13,069, rising to £37,734 for 40-49 year olds, then declining to £26,750 for those aged 60+. This reflects career progression and part-time work in later years.

Using Salary Comparison Tools

Several online tools can help you compare your salary against national and occupational medians. For example, SalaryWise allows you to enter your gross salary and see how it ranks against the UK median, as well as your estimated take-home pay. It also provides comparisons with specific occupations like car mechanics (£31,600), bus drivers (£33,200), and physiotherapists (£38,000). These tools are useful for quick checks, but remember that they rely on ONS data which may lag behind current market rates.

For a thorough salary comparison, combine multiple sources:

• ONS ASHE for official medians by occupation and region
• GOV.UK for National Living Wage and National Minimum Wage rates (e.g., £12.21 for ages 21+ from April 2025)
• HMRC for tax and NI calculations
• Industry-specific surveys or recruitment agency reports for current advertised salaries

Key Takeaways

• The median full-time annual salary in the UK is £39,039 (ONS ASHE 2025). Use this as your baseline, but adjust for your occupation and region.
• Advertised salaries may be higher or lower than the median – always check the specific role and location.
• Take-home pay can be 15-20% less than gross salary after tax and NI. In Scotland, tax bands differ.
• For a fair salary comparison, use the median (not mean) and consider hourly rates if hours vary.
• Official statistics measure actual pay from employer records, not what's advertised. They are the most reliable benchmark.

For more insights, explore our UK Average Salary, salary data, and other salary articles.

Frequently Asked Questions

What is the difference between median and mean salary in UK statistics?

The median is the middle point of the earnings distribution – half of employees earn more, half earn less. The mean is the arithmetic average of all salaries. The ONS prefers the median because it is not distorted by a small number of very high earners. For example, the median full-time annual salary is £39,039, while the mean is higher at around £45,800 (ONS ASHE).

How does advertised salary compare to actual median earnings?

Advertised salaries often reflect the role's market rate, which may be above or below the national median depending on industry, location, and experience. For instance, a job advert for a software developer in London may offer £60,000, well above the £39,039 median, while a retail assistant role may offer near the National Living Wage. Always compare advertised pay against the median for that occupation and region using ONS data.

Why does take-home pay differ from gross salary in salary comparisons?

Take-home pay is gross salary minus income tax, National Insurance, and any deductions like pension contributions or student loans. For a £35,000 salary in rest of UK, take-home is about £28,719 (82% of gross). In Scotland, income tax bands are different (starting at 19% instead of 20%), so take-home may be slightly lower or higher depending on earnings. Always consider net pay when comparing job offers.