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What lenders often look at
- Affordability: your income minus committed outgoings (student loan deductions can reduce this).
- Credit file: missed payments, high utilisation, recent credit searches.
- Stability: consistent income, employment history, and manageable regular payments.
- Deposit & LTV: bigger deposit typically means more lender options and better rates.
General information only. Not financial advice. Lenders use different affordability models and criteria.
Key points
- UK student loans are income-linked: repayments are a payroll deduction once you earn above a threshold (plan-dependent).
- Lenders typically treat the repayment like a monthly commitment, which can reduce the amount they’re willing to lend.
- The loan balance itself doesn’t usually appear on your credit file, so it’s the monthly deduction that counts, not how much you owe.
- Other commitments often matter more (car finance, credit balances, dependants, childcare).
- Paying off a student loan early is not always the “best” move: it depends on your plan, income trajectory, and goals.
Student loan repayment thresholds
| Plan | Yearly threshold | You repay |
|---|---|---|
| Plan 1 | £26,900 | 9% above it |
| Plan 2 | £29,385 | 9% above it |
| Plan 4 (Scotland) | £33,795 | 9% above it |
| Plan 5 | £25,000 | 9% above it |
| Postgraduate Loan | £21,000 | 6% above it |
Example: on a £40,000 salary with a Plan 2 loan, you repay 9% of £10,615 (the amount over £29,385), which is about £955 a year or £80 a month.
Do you have to declare a student loan on a mortgage application?
Yes. Mortgage applications ask about your regular commitments, and your student loan deduction appears on your payslips (or in your Self Assessment if you’re self-employed), which lenders check. Leaving it out can delay or derail an application, so give the monthly figure from your latest payslip.
What lenders don’t usually see is the balance: income-contingent student loans from the Student Loans Company don’t normally appear on your credit file, so it’s the monthly deduction that counts, not how much you owe.
Do student loans count as income for a mortgage?
No. Student finance such as maintenance loans isn’t counted as income by mortgage lenders. Once you’re working, it’s the other way round: your repayments are a deduction that slightly reduces the income a lender has to work with.
How much can a student loan reduce what you can borrow?
Lenders work out affordability from your income minus your committed monthly outgoings, so the effect depends on the size of the deduction. On a £40,000 salary with a Plan 2 loan, the deduction is about £80 a month. That’s smaller than a typical car finance payment, and many buyers find it makes only a modest difference compared with their deposit, credit card balances and other commitments.
Use the checker above to estimate your own deduction, then ask a broker or lender for an agreement in principle to see the real effect with their affordability model.
Should you pay it off to get a bigger mortgage?
A simple way to think about it: if paying off your loan reduces your monthly outgoings by £X, some lenders may be willing to lend “roughly” more, but it’s rarely 1:1 and differs by lender. Often, improving your deposit, reducing expensive credit, or clearing car finance can move the needle more.
FAQ
Does a student loan affect getting a mortgage in the UK?
Yes, but usually only a little. Lenders include your monthly student loan deduction in their affordability checks, which can slightly reduce how much they’ll lend. The loan balance itself doesn’t normally appear on your credit file.
Do mortgage lenders take student loans into account?
They take the monthly repayment into account as a regular commitment, in the same way as other outgoings. They don’t usually treat the balance like a normal debt, because repayments depend on your income.
Do I have to tell my mortgage lender about my student loan?
Yes. Declare it as a monthly commitment on your application. Lenders will see the deduction on your payslips anyway, and leaving it out can cause delays.
Should I pay off my student loan before buying a house?
Usually not just to borrow more. Putting the money towards a bigger deposit or clearing expensive debt often improves your options more, and many student loans are written off before they’re fully repaid.