UK salary growth by profession: who really got richer since 2005?

Introduction

Most people assume that if their salary has gone up over the past 20 years, they’re better off. The reality is very different.

Knowledge Train analysed two decades of Office for National Statistics (ONS) salary data covering 158 UK professions and adjusted every figure for inflation. The findings challenge some of the biggest assumptions about careers, qualifications and earnings.

Almost every profession has seen salaries rise before inflation is accounted for. Yet most workers have quietly lost spending power, some of Britain’s most respected professions have seen the biggest falls, and several jobs requiring no university degree have outpaced doctors and scientists.

Why salary rises hide the real story

Ask a worker in almost any UK profession and they will tell you they earn far more than they did 20 years ago. On paper, they are right but in reality, most of them are poorer.

Here’s why. Between 2005 and 2025, UK consumer prices rose by 77%. A salary would have needed to grow by at least that much simply to stand still. So, Knowledge Train put every profession to the test, analysing ONS data on median full-time salaries. The answer is stark. Only 54 of the 158 occupations beat inflation over the past two decades. The remaining 104, roughly two in three, saw their pay fall after inflation. And for some of Britain’s most trusted professions, the fall has been brutal.

The UK’s 10 biggest pay winners

Hairdressers and barbers top the table for pay growth after inflation, and by a wide margin. Their median salary has climbed from £10,177 in 2005 to £24,279 in 2025, a rise of 139% before inflation and 34.6% after inflation. Whilst still being one of the lowest-paid jobs in the country, hairdressing has actually seen stronger pay growth after inflation than medicine, law or science.

The biggest salary increase of any profession is to rail transport operatives, the signaling staff who keep the network moving. Their median pay has jumped by an extra £28,785 a year, lifting it from £28,303 to £57,088.

But the real eyebrow-raiser is on the front line of the railway. Rail travel assistants, the staff who check tickets and help passengers on trains, have seen their pay rise by 113% before inflation to £46,062. That is a 20% gain after inflation, comfortably above the current UK median full-time salary of around £39,000, and more than social workers, who now earn £44,550.

Look across the rest of the top ten and a pattern emerges. Retail cashiers, bar staff, waiters, leisure attendants and pub managers all feature. Nine of the ten roles usually require no degree, the sole exception being paramedics.

The professions that have gone backwards

At the other end of the table, some of Britain’s most qualified professions have watched their pay quietly evaporate.

The most dramatic reversal is seen among doctors. In 2005, medical practitioners were among the best-paid professionals in the UK, on a median salary of £76,873. Twenty years later the median stands at £78,796, while prices rose by 77% over the same period. That is not inflation nibbling at a rising salary. It is a 42% fall after inflation, the steepest fall of any profession in the data.

Insurance underwriters tell a similar story. Although their pay rose by nearly £7,800 over the two decades, it reflects a 31% reduction in spending power.

Solicitors and lawyers show the quieter side of the squeeze. Their median pay has gone up by £15,065 in 20 years, which may sound like a good deal because that works out at a pay rise of roughly £750 a year, every year, for two decades. However, this has left them 23% worse off once inflation is considered.

And perhaps the most telling comparison of all: hairdressers and barbers (+34.6%) and cleaners and domestics (+11.4%) have both seen stronger pay growth after inflation than doctors and scientists.

The industries pulling ahead, and those falling behind

Group the 158 occupations by sector and a divide opens.

Just five sectors managed to beat inflation. Hospitality, travel and leisure lead the way with average growth of 13.2% after inflation, powered by the bar staff, waiters and pub managers who feature strongly among the individual winners. Personal services, the hairdressers, cleaners and beauticians, follow at 7.6%, with agriculture, retail and sales, and transport and logistics all achieving small real terms pay increases.

Below the line, the losses stack up quickly. But it’s the names at the very bottom that stand out: technology, legal, science and research, finance and creative & media. The sectors traditionally seen as the most prestigious, the hardest to enter and the most demanding to qualify for have suffered the deepest falls in pay after inflation in the country.

Does a degree still pay?

The data challenges one of the most persistent assumptions about careers: that a degree is the surest route to rising pay.

According to the dataset, pay for occupations that require a degree fell by an average of 13.4% after inflation. Jobs with no degree requirement fared better, falling by an average of just 3.5%, and this group supplied nine of the ten biggest winners.

That does not mean qualifications no longer matter. It means the type of qualification matters more than it used to. Employers increasingly reward specific, in-demand skills over general academic credentials earned decades ago.

What is driving the divide?

Several forces appear to be reshaping the UK pay landscape.

• Minimum wage rises have lifted the bottom of the market. Many of the biggest winners, including cashiers, cleaners, bar staff and hairdressers, sit in lower-paid roles where two decades of National Minimum Wage and National Living Wage increases have far outpaced inflation.
• Negotiating power matters. Strongly unionised occupations, or those where pay is negotiated collectively, such as rail staff and paramedics, feature prominently among the winners.
• Skills shortages can lead to higher pay. Safety-critical and hard-to-fill roles, from paramedics to rail signaling and control-room staff, have seen employers offer higher pay.
• Limits on public sector pay rises have bitten hardest at the top. Years of pay caps and contract changes help explain why doctors, teaching professionals and other qualified public-sector roles dominate the losers’ table.

Where to go from here

If there is one lesson in 20 years of pay data, it is that standing still is expensive. The professions that thrived were those where skills stayed scarce and in demand. The professions that fell behind were often those where workers assumed their qualifications would keep paying off indefinitely.

Whatever stage of your career you are at, investing in recognised, in-demand skills remain one of the most reliable ways to protect and grow your earning power. Explore Knowledge Train’s professional training courses to see how professional certification can support your next step.

Methodology

Knowledge Train analysed ONS data to identify the median gross annual salary of full-time workers across hundreds of UK professions (by occupation code) in 2005, then repeated the exercise for 2025. Occupations lacking data in either year were excluded, leaving 158 comparable roles.

For each occupation, the research calculated the absolute (£) increase, percentage growth before inflation, the 2005 salary expressed in 2025 prices, and percentage growth after inflation. The inflation adjustment used the ONS CPI index value of 78.1 for 2005 and 138.4 for 2025, giving a multiplier of 1.772. Each 2005 median salary was multiplied by this figure to express it in 2025 prices.

This shows which roles have seen the biggest, genuine pay rises over the past 20 years, not just before inflation but in terms of spending power after inflation.

A caveat – manual research of current job advertisements was used to determine if job roles require a degree. However, the classification given was generalised and degree requirements may differ by the specific job role.