Is Your Degree Worth It? How to Calculate the Real ROI of University

The average English undergraduate leaves university with over £45,000 in student debt. Welsh students owe slightly less. Scottish students studying in Scotland pay no tuition at all. But regardless of where you study, university represents a massive investment of time and money.

The question most prospective students ask is “which university should I go to?” A better question might be: “will this degree pay for itself?”

The Real Cost of a Degree

Tuition fees in England have been frozen at £9,250 per year since 2017, making a standard three-year degree £27,750 in fees alone. But fees are only part of the cost.

Maintenance loans cover living expenses and vary by household income and whether you live at home, away from home, or in London. The maximum maintenance loan for a student living away from home outside London is approximately £10,200 per year for 2025/26.

Add it up: a three-year degree for a typical student costs roughly £55,000-£60,000 in total borrowing. A four-year degree with a placement year pushes past £70,000. London-based students can exceed £80,000.

These are not figures you repay like a mortgage. Student loan repayment in England works more like a graduate tax — you repay 9% of everything you earn above a threshold (currently around £25,000 for Plan 2, £25,000 for Plan 5). If you never earn above the threshold, you never repay. After 30 years (Plan 2) or 40 years (Plan 5), the remaining balance is written off.

This means the true cost of your degree depends entirely on what you earn after graduating.

Why Most ROI Calculations Get It Wrong

Most degree ROI articles use a simple formula: graduate salary minus non-graduate salary, multiplied by working years, minus tuition fees. This approach has three serious problems.

First, they use the wrong salary data. Survey-based salary figures overstate graduate earnings. The only reliable source is the LEO dataset, which links university records to HMRC tax returns.

Second, they ignore the trajectory. A graduate earning £22,000 at age 22 and £55,000 at age 35 has a very different ROI from one earning £30,000 at 22 and £35,000 at 35. The starting salary matters far less than the slope.

Third, they forget loan mechanics. Under Plan 2 and Plan 5, you do not repay a fixed amount. You repay a percentage of earnings above a threshold. Low earners repay almost nothing. High earners repay everything plus interest. The loan system means that for many graduates, the nominal debt figure is irrelevant — what matters is total lifetime repayments.

What the Data Actually Shows

Using LEO data, we can model realistic graduate earnings trajectories by subject and compare them against non-graduate earnings over time.

Subjects with the strongest ROI:

Medicine and dentistry graduates break even fastest — typically within 5-7 years of qualifying (though their degrees are longer, so the total timeline from starting university is more like 10-12 years). Economics and computing graduates often break even within 6-8 years of graduation.

Engineering, mathematics, and business graduates typically reach break-even at 8-12 years. The combination of above-average starting salaries and strong growth trajectories means these degrees comfortably pay for themselves over a career.

Subjects with weaker financial ROI:

Creative arts and design graduates face the longest path to financial break-even. With median earnings of £24,000 at five years — only marginally above non-graduate median earnings — many will repay relatively little of their loan before it is written off. In purely financial terms, the degree may never “pay off.”

Education and social care graduates have a similar pattern, though with more stable employment. The salaries are modest but the employment rates are high.

The middle ground:

Biological sciences, social sciences, and humanities graduates fall somewhere in between. The financial return is positive but modest, often taking 12-15 years to clearly exceed the non-graduate trajectory.

The Non-Financial Returns

It would be dishonest to discuss degree ROI purely in financial terms. University provides things that do not show up on a tax return:

• Three to four years of intellectual development during formative years
• Professional networks that compound over decades
• Credential signalling that opens doors regardless of what you studied
• Personal growth, independence, and exposure to different perspectives

For many students, these non-financial returns are worth more than the salary premium. But they are impossible to quantify, which is why we focus on what can be measured.

How to Calculate Your Personal ROI

We built the Degree ROI Calculator specifically to answer this question with real data. Here is what it does:

Inputs: Your chosen subject, tuition fees per year, maintenance loan per year, degree length, and whether you are on Plan 2 or Plan 5.

What it calculates:

• Cumulative graduate earnings at 5, 10, 20, and 30 years
• Cumulative non-graduate earnings over the same period
• Total student loan repayments under your specific plan
• Net financial benefit (or cost) of the degree
• Approximate break-even year

Every earnings figure comes from the LEO dataset — actual HMRC tax records, not surveys or estimates.

Three Scenarios

Best case — Computing graduate, Plan 2: Total borrowing: £55,000. Median earnings reach £38,000 by year 5 and continue climbing. Total loan repayments over 30 years: approximately £65,000-£75,000 (repaying the full loan plus interest). Net lifetime earnings premium over non-graduate: £400,000+. Break-even: ~7 years.

Middle case — Business graduate, Plan 5: Total borrowing: £58,000. Median earnings reach £33,000 by year 5. Total loan repayments over 40 years: approximately £55,000-£65,000. Net lifetime earnings premium: £200,000+. Break-even: ~11 years.

Weakest financial case — Creative Arts graduate, Plan 5: Total borrowing: £55,000. Median earnings reach £24,000 by year 5. Total loan repayments over 40 years: approximately £15,000-£25,000 (most of the loan is written off). Net lifetime earnings premium: £30,000-£50,000. Break-even: 15+ years, if at all in purely financial terms.

The Bottom Line

University is worth it financially for most graduates — but the margin varies enormously by subject. STEM and professional degrees offer clear, strong financial returns. Arts and humanities degrees offer weaker financial returns but may provide value in ways that tax records cannot capture.

The worst financial decision is not going to university for a low-earning subject. It is going to university without understanding what you are likely to earn, and making financial commitments based on optimistic assumptions.

The data exists to make a better decision. Use it.