How Much Will It Take From Your Pay?
There are two important numbers in a student loan.
One is the balance on the statement. The other is the amount taken from your pay.
Most people assume the second depends on the first. It does not, which is surprising, because that is how almost every other debt works, from car finance to a credit card.
The gap between those two ideas is where families make expensive decisions.
This article covers the whole UK because the answer depends on which repayment plan applies, and that depends on where you normally lived before the course.
The balance and the payslip are two different questions
How much was borrowed decides the starting balance.
How much is earned decides the deduction.
They are different questions and they mostly do not talk to each other.
Two employees on the same plan, paid the same amount on the same schedule, will normally have the same amount taken out even if one of them borrowed twice as much as the other. Borrowing an extra year of living costs does not make the monthly figure bigger. It makes a balance bigger, and that balance may or may not ever be cleared.
That is also why a growing statement can be alarming without being as significant as it looks. Interest is added to the balance, including in years when earnings are too low for anything to be repaid at all, so the number can climb while nothing whatever is leaving the graduate’s pay.
And after thirty or forty years, depending on the plan, whatever is left is cancelled. Some borrowers reach that point with part of the balance still outstanding. Others repay the lot. Which one an eighteen year old will turn out to be usually cannot be known.
How the deduction is actually worked out
For an employee repaying through payroll, once repayment is due, each payslip has its own line.
If that month’s pay is below it, nothing comes out. Not a reduced payment. Nothing. If the pay is above the line, part of the amount above the line comes out, collected through payroll in the same way as tax. If pay drops back below, it stops again, without anyone having to arrange it.
So the question worth asking is never how much is owed. It is what the graduate is being paid, and which line applies to them.
Which line applies to you depends on where you lived
The rules follow where the student normally lived before the course, not where the university is. Somebody from Cardiff studying in Bristol is funded by Wales. Somebody from Bristol studying in Cardiff is funded by England. They can sit in the same lecture on completely different arrangements.
There are four, and which one you are on depends on where you lived and when you started.
Everything below is for the 2026/27 tax year. These figures move, so check them rather than trusting any article, this one included.
Each plan has an earnings line. Below it, nothing comes out. Above it, nine pence comes out of every pound above the line.
- Plan 1, for students from Northern Ireland, and for England and Wales before 2012: the line is £26,900 a year, or £2,241 a month.
- Plan 2, for students from Wales, and for England between 2012 and 2023: £29,385 a year, or £2,448 a month.
- Plan 4, for students from Scotland: £33,795 a year, or £2,816 a month.
- Plan 5, for students from England starting from August 2023: £25,000 a year, or £2,083 a month.
Now put one salary through all four. Take somebody paid £30,000 evenly across the year, which is £2,500 a month, as an example rather than an average.
- Plan 1: £259 over the monthly line, so about £23 a month.
- Plan 2: £52 over, so about £4 a month.
- Plan 4: under the line entirely, so nothing at all.
- Plan 5: £417 over, so about £37 a month.
Same job. Same pay. Nothing between them except where they happened to live before the course, and the difference is £37 a month at one end and nothing at the other.
The written-off date differs too, running from 25 years after repayment was due at one end to 40 at the other, so the plan you are on also decides how long this follows you. The interest differs by plan as well, and on Plan 2 it varies with what you earn. Both are on the GOV.UK page linked at the end.
If you are funded by Wales, there is one more thing worth knowing, because it is money rather than admin. Welsh support arrives as a mixture of grant, which is never repaid, and loan, which is. The Welsh Government will also cancel up to £1,500 of a first maintenance loan, and it is applied once the student starts repaying. It is worth reading the eligibility rules properly, because starting repayment does not necessarily mean waiting for a salary, and this is a rare case where something small and early can change the number.
What this is called
The set of rules deciding when repayment starts, how much comes out and when the rest is cancelled is called a repayment plan. Which one applies is decided by where the student lived and when they started, not by choice.
The earnings line that has to be crossed before anything comes out is called the repayment threshold.
Money added to the outstanding balance as time passes is called interest. It makes the number on the statement bigger. It does not make this month’s deduction bigger.
That is the whole vocabulary. If somebody uses a phrase that is not on that list, it is fair to ask them to explain it in pounds.
Where the analogy breaks
Saying the loan waits for a pay packet is useful, and it can be pushed too far.
It is a real commitment. Once earnings pass the line, take home pay is smaller for years, possibly decades, and that affects what a household can afford. Anybody telling a nineteen year old not to worry because it is not real debt is being careless with somebody else’s future budget.
It is not simply a tax either, whatever people say. The balance exists, the interest is real, the plan matters, and for a high earner the total repaid can be very large.
A bigger balance usually does not mean a bigger monthly deduction, but for someone likely to clear the whole thing before cancellation, borrowing less genuinely does mean repaying less. Which of those two people your child turns out to be is not knowable at eighteen.
Pay does not arrive evenly either. Because each payslip is measured against its own line, a bonus or a month of overtime can take one month above it even when the whole year ends up below the annual figure. Where that happens, the refund may have to be requested after the tax year ends rather than arriving on its own.
And parents should assume the rules they remember have changed. Thresholds, interest and cancellation periods have all moved more than once, and the arrangement a parent repaid in their twenties may bear little resemblance to what is on the table now.
Two things to do, one each
If you are the student: find out four things before you sign anything. Which body is funding you, which follows where you normally live. Which plan that puts you on. Which part of the money is a grant that never has to be repaid, and which part is a loan. And what has to happen to your future pay before anything starts coming out of it. Write the threshold down. It is the number that actually matters, and it is not the big one on the front.
If you are the parent: before you offer to pay the fees, reduce the borrowing, or make extra payments later, ask one question. Would that money actually change what comes out of their pay over their working life, or would it only reduce a balance that may be cancelled anyway?
Sometimes the answer is yes and paying is the right call. Often the same money does more good elsewhere: keeping them off expensive commercial borrowing, helping with rent, or staying where you can reach it if something goes wrong. What you should not do is treat the displayed balance as though it were a mortgage and quietly hand over savings you may need, because the number was frightening and nobody explained it.
Neither of you has to become fluent in student finance. You need to be able to have the conversation together, which is a lower bar and a much more useful one.
Useful links
- GOV.UK: how much you repay for the current repayment thresholds, how the deduction is worked out and the interest charged under each repayment plan.
- Student Finance Wales: terms and conditions for 2026/27 for what a Welsh funded student is actually agreeing to, including how interest is applied.
- Welsh Government: student finance partial cancellation scheme for the cancellation of up to £1,500, who qualifies and what has to happen to trigger it.
- GOV.UK: which repayment plan you’re on if you are not sure, which most people are not.
- SAAS for students who normally live in Scotland.
- Student Finance NI for students who normally live in Northern Ireland.
General information, not financial advice — see the note on the Money vault. Rules and figures change; check the official sources linked in each article before acting.
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