How Lenders View Student Loan Debt
UK mortgage lenders do not treat student loan debt in the same way as credit cards, personal loans, or car finance. This is because student loan repayments are collected through the tax system, the amount you repay is linked to your income, and the debt is written off after a set period.
However, lenders do take student loan repayments into account when assessing your affordability. The monthly repayment reduces your disposable income, which in turn reduces the amount you can borrow. The impact varies depending on which repayment plan you are on and how much you earn.
Crucially, the outstanding balance of your student loan does not appear as a debt on your credit file in the way that a personal loan or credit card would. Lenders are interested in the monthly repayment amount rather than the total balance owed.
Understanding the Different Repayment Plans
The amount you repay each month depends on which student loan plan you are on:
- Plan 1 – applies to English and Welsh students who started before September 2012, and Scottish students. You repay 9% of income above £24,990 per year (2024/25 threshold).
- Plan 2 – applies to English and Welsh students who started from September 2012. You repay 9% of income above £27,295 per year.
- Plan 4 – applies to Scottish students who started from September 2012. You repay 9% of income above £31,395 per year.
- Plan 5 – applies to English students starting from August 2023. You repay 9% of income above £25,000 per year.
- Postgraduate loan – you repay 6% of income above £21,000 per year, in addition to any undergraduate loan repayment.
On a salary of £35,000, a Plan 2 borrower would repay approximately £57 per month. This is the figure the lender uses when calculating affordability, not the total outstanding loan balance.
How Student Loans Affect How Much You Can Borrow
Because lenders factor in your monthly student loan repayment as a committed expenditure, it reduces the amount they will lend you. The exact impact depends on your salary, repayment plan, and the lender's affordability model.
As a rough example, a £57 per month student loan repayment might reduce your maximum borrowing by around £10,000 to £15,000 compared to a borrower with the same income but no student loan. The higher your income, the larger the repayment and the greater the impact on your borrowing capacity.
Some lenders are more generous than others in how they treat student loan repayments. A few may apply a lower stress rate to this type of commitment, recognising that it is income-contingent and not a fixed obligation. A broker can help you find the most favourable lender for your situation.
Should You Pay Off Your Student Loan Before Remortgaging?
In most cases, paying off your student loan early to increase your borrowing capacity is not financially advisable. Student loan interest rates are relatively low compared to many other forms of borrowing, and the debt is written off after 25 or 30 years depending on your plan.
If you are close to the repayment threshold, you could explore whether slightly reducing your income through increased pension contributions would eliminate or reduce the student loan repayment. This is a legitimate strategy, though it should be considered carefully with the help of a financial adviser.
The one exception is if you owe a relatively small amount and are close to paying it off anyway. In that case, clearing the balance could remove the monthly commitment from your affordability calculation and potentially increase your borrowing capacity enough to make a meaningful difference to your remortgage options.
Important: Your home may be repossessed if you do not keep up repayments on your mortgage. There will be a fee for mortgage advice. The actual rate available will depend on your circumstances. Think carefully before securing other debts against your home.