Should I Pay Off My Student Loan Early?
For most people, paying off a UK student loan early is not worth it. Because you only repay 9% of your income above a threshold, and any remaining balance is written off after 25 to 40 years depending on your plan, a large number of borrowers never repay their loan in full anyway. Overpaying a loan you were never going to clear simply hands over money you could have kept — money that would usually do more for you in a pension, an ISA, an emergency fund or a mortgage deposit.
There are exceptions, and we cover them below. But the key thing to grasp is that a student loan is not like normal debt, so the usual "clear your debts first" instinct does not automatically apply. Use the calculator to see what your loan actually costs you each month first.
🎓 Student loan repayments · live
You earn £7,000 above the £25,000 threshold, and repay 9% of that — £53 a month. Earn more and you repay more; earn less and it falls. Anything left is written off 40 years after repayments start.
Estimate based on 2025/26 thresholds. Repayments are collected through PAYE or Self Assessment and are based on income, not the amount borrowed. Interest still accrues separately. Check your balance at gov.uk.
At a glance
- Repayment rate
- 9% of income above the threshold
Key Takeaways
- Student loan repayments are based on your income, not your balance, so overpaying does not reduce your monthly deduction — it only shortens the balance.
- Most borrowers never repay in full before write-off, meaning voluntary overpayments are money you would otherwise have kept.
- A student loan is not on your credit file and does not affect your credit score, so it does not need clearing before a mortgage the way normal debt might.
- Overpaying can make sense for high earners who will clearly clear the loan in full, or for people who simply want the psychological relief of being debt-free.
Why early repayment usually doesn't pay
The logic of paying off normal debt early is straightforward: you owe a fixed amount, you are charged interest on it, and clearing it saves you that interest. A student loan breaks that logic in two ways.
First, your repayment is fixed by your income, not your balance. On most plans you repay 9% of everything you earn above your threshold (see the annual figures in student loan repayment explained). Making a lump-sum overpayment does not lower next month's deduction by a penny — that is still set by your salary. All you have done is reduce a balance that may never have been fully repaid.
Second, the loan is written off after a set term — around 25 years for Plan 1, 30 years for Plans 2, 4 and postgrad, and 40 years for Plan 5. If you were on track to reach write-off with a balance remaining, every extra pound you throw at the loan is a pound the write-off would have cancelled for free. We explain the terms in when is a student loan written off.
What else that money could do
Before overpaying, compare the loan against the best home for your spare cash. For most people, other options win comfortably:
- An emergency fund. Three to six months of expenses in easy-access savings is almost always a higher priority than overpaying a loan you may never fully repay.
- A pension. Employer matching and tax relief make pension contributions extremely efficient. This is often the single best use of spare money.
- A mortgage deposit. A larger deposit can unlock better rates and improve affordability — see our mortgage affordability calculator.
- A cash or stocks and shares ISA. Tax-free growth that stays accessible and flexible.
Because a student loan does not touch your credit file, holding it does not damage your ability to borrow elsewhere. It is not the drag on a mortgage application that a credit card or car loan can be — though the repayments do reduce affordability, which we cover in does a student loan affect your mortgage.
When early repayment might make sense
For a minority of borrowers, overpaying is a reasonable choice:
- You are a consistently high earner who will clearly repay the full balance well before write-off. If you are going to clear it anyway, and the interest rate on your loan is higher than what you could safely earn on savings, overpaying can reduce the total interest you pay. This is most relevant on plans with higher interest and shorter effective terms.
- You are close to clearing it. If only a small balance remains and you will obviously repay it soon, a final overpayment to be rid of it can be sensible — just avoid overpaying right at the end and accidentally paying more than the balance.
- You value being debt-free. For some people the peace of mind of owing nothing is worth more than the pure financial calculation. That is a legitimate personal choice, as long as you go in with your eyes open about the trade-off.
Even then, it is worth checking your interest rate first, because on many plans it is lower than you might assume. See student loan interest rates explained.
How to decide
A simple framework: estimate whether you are likely to repay the loan in full before write-off. If you are not — which is true for a great many borrowers, particularly on Plan 5 with its 40-year term — overpaying rarely makes sense. If you clearly will repay in full, then compare the loan's interest rate against the return you could get elsewhere and decide from there.
You can log in at gov.uk to see your balance and interest rate, and use the calculator above and our income tax calculator to understand your take-home pay. For a fuller picture of what counts as a comfortable income, see what's a good salary in the UK.
Frequently asked questions
Does overpaying my student loan reduce my monthly repayments?
No. Your monthly repayment is fixed at 9% of your income above the threshold (6% for a Postgraduate Loan), regardless of your balance. Overpaying reduces the outstanding amount but does not lower next month's deduction, which is set purely by what you earn.
Is it better to overpay my student loan or my mortgage?
For most people, a mortgage overpayment does more, because mortgage debt is on your credit file, is not written off, and its interest directly affects what you pay. A student loan is income-based and eventually written off, so it is usually a lower priority than a mortgage, pension or emergency fund.
Will paying off my student loan improve my credit score?
No. UK student loans do not appear on your credit file and are invisible to the credit reference agencies, so clearing one has no effect on your credit score. If you are worried about borrowing, see is there a minimum credit score for a mortgage.
How do I know if I'll repay my student loan in full?
Log into your account at gov.uk to see your balance, interest rate and plan type, then compare your expected earnings against the repayment threshold over the years until write-off. If your projected repayments over that period fall short of the balance, you will likely reach write-off without repaying in full.
General information only, not financial advice. Check your plan type and balance at gov.uk.
