Why this isn't like a debt (Unless you try to evade the repayments)
It behaves like a graduate tax, not a commercial loan.
Commercial debt can ruin your credit score or send bailiffs to your door. A UK student loan does neither. Repayments drop automatically when your income falls, the loan never shows up on credit files, and it vanishes after the term of the plan regardless of balance.
You are probably never going to pay it off
And that is the good news, not the bad news.
The government agrees: it's forecast for the last Plan 2 intake is that only about a third will repay in full. So whatever is on your statement, the odds are a good part of it is still going to be there in thirty years — then it's cancelled, and nobody mentions it again.
Where that third comes from — and when it doesn't apply to you
The Department for Education publishes long-run forecasts of who repays. Its July 2026 edition reports that 32% of borrowers who started in 2022/23 under Plan 2 were expected to repay in full — a figure carried forward from the forecast made for that cohort. So roughly two in three are not.
It's a forecast, and it cannot be anything else. Plan 2 began in 2012 with a thirty-year term, so the first write-offs land around 2042. Nobody will have real outturn figures for another sixteen years — including the government.
It's the 2022/23 intake, the last Plan 2 one, and it's for full-time students in England. If you started earlier your cohort's number will differ somewhat; this is the closest published Plan 2 figure and it's the comparison DfE themselves use.
If you started in 2023/24 or later you are on Plan 5, and this number is not yours. DfE forecasts 55% of Plan 5 starters will repay in full — the majority, not the minority. Plan 5 has a lower threshold (£25,000), a longer term (40 years) and interest at RPI+0% instead of up to RPI+3%. More people clear a Plan 5 loan because Plan 5 collects more, sooner, for longer. That is not the same as it being a better deal.
Source: DfE, Student loan forecasts for England, financial year 2025-26, published 9 July 2026.
The most important part of your plan is the 'rate' and the 'threshold'.
You pay a percentage of what you earn above a line — and nothing at all below it.
On Plan 2 — most people who started an English or Welsh degree between 2012 and 2023 — it's 9% of everything above £29,385. On a £35,000 salary that's about £42 a month.
Not £42 because of what you borrowed. £42 because of what you earn.
Show me the arithmetic
£35,000 − £29,385 = £5,615 of income above the threshold
£5,615 × 9% = £505.35 for the year
£505.35 ÷ 12 = £42.11 a month
The rate and the threshold depend on your plan. However, the plans all work in the same way.
| Plan | You pay | On income above |
|---|---|---|
| Plan 1 | 9% | £26,900 |
| Plan 2 | 9% | £29,385 |
| Plan 4 (Scotland) | 9% | £33,795 |
| Plan 5 | 9% | £25,000 |
| Postgraduate | 6% | £21,000 |
Two people owing wildly different amounts pay exactly the same
The balance is not an input. It never has been.
Borrower one
- Salary £35,000
- Owes £28,000
Borrower two
- Salary £35,000
- Owes £62,000
Different balances. The same salary. The same payment, to the penny.
Two people, both earning £35,000. One owes £28,000, the other £62,000. They pay the same £42 a month — not roughly the same, the same.
That isn't how a debt behaves. A credit card with twice the balance costs twice as much; a mortgage twice the size has twice the payment. Bigger balance, bigger bill is what debt means to most people, and it's the one thing your student loan doesn't do.
What the balance decides is whether you ever reach the end of it — a real question, and not the same as what is this costing me.
Your balance can rise every year without changing a thing
Interest is compounding on a number that doesn't determine your payments.
This is the part nobody explains, and it's what turns a background irritation into a 2am problem. You pay in every month and still owe more at the end of the year than the beginning.
Same person: £35,000 salary, £45,000 outstanding. This year's interest is set from inflation of 4.1%, so they're paying about 4.8% — roughly £2,160 against £505 repaid. The balance ends the year about £1,655 higher.
Show me the arithmetic
Plan 2 interest slides between RPI and RPI + 3%, depending on where you sit in the £29,385 to £52,885 band.
£35,000 is £5,615 into a £23,500-wide band = 23.9% of the way up
So interest = last March's inflation + (3% × 0.239) = 4.1% + 0.7% = about 4.8%
£45,000 × 4.8% = £2,160 of interest for the year
Less £505 repaid = balance up by about £1,655
Interest is capped at 6% for 2026/27.
And that changes nothing: next year you still pay 9% of what you earn above the threshold. If you're going to clear the loan, that interest is real money. If you're not, it's weather.
If you stop earning, you stop paying
Nothing to apply for, and nothing to default on.
Drop below the threshold — redundancy, a sabbatical, a baby, part-time hours — and the deduction stops on its own. No default, no arrears, no bailiff. You're not in breach of anything, because there's nothing to breach: you owe 9% of an amount above a line, and this year there isn't one.
Try that with a credit card.
It isn't on your credit file
A lender searching you cannot see the balance, because it isn't there to see.
The £62,000 — the part that actually frightens people — is invisible.
A mortgage lender does see the deduction on your payslip, and that reduces what they'll lend you. So it isn't free. But it isn't on your file marking you as someone who owes sixty grand.
(This applies to the current income-contingent system (Plans 1–5). The older "mortgage-style" loans that predate 1998 worked differently — they were ordinary consumer credit agreements, not this kind of loan — so if yours is one of those, don't assume the same applies.)
Where this argument breaks down
Three places, and I'd rather tell you than have you find them.
If you will clear it, it is a debt. Earn enough for long enough and you pay the lot, with interest, and everything above stops applying to you. The balance matters, and so does the sliding scale pushing your interest towards RPI + 3%. Broadly the higher earner with a smaller balance — and exactly who the calculator is for.
It is not free. Nine per cent above the threshold, potentially for thirty years, is a lot of money — and because it comes off your pay, it comes off what you can afford to borrow for a mortgage. "Not a debt" is not "not a cost".
The terms can be changed, and are being. The Plan 2 threshold is due to be frozen at £29,385 from April 2027 to April 2030. That sounds like nothing. It's a quiet tax rise: wages drift up, the line stays still, more of your income falls into the 9%. Announced policy rather than enacted law in August 2026 — and it's the honest weakness in calling this a tax. A tax rate can be changed on you. So can this.
What it actually is: a graduate tax with a stopping point
You pay a percentage of what you earn, until one day you don't.
Thirty years after you first became due to repay on most plans, forty on Plan 5. Whatever is left is cancelled. Not settled, not written down, not sold to a collections agency. Cancelled.
So the only question worth losing sleep over is whether you reach the end of it before it reaches the end of you — and that turns on what you earn over the next few decades, not on the number that scared you.
Which is what the calculator is for.
2026/27 tax year, from GOV.UK, the House of Commons Library and DfE's Student loan forecasts for England (9 July 2026). Thresholds change every April. Full workings.