Could Paying More Into Your Pension Reduce Your Student Loan Repayments?

Student loans can be a source of frustration long after graduation. You might be making repayments every month, yet still owe thousands of pounds — sometimes more than you originally borrowed.

If you’re a parent, you might worry about the impact this could have on your child’s finances as they try to save for a home, start a family or prepare for retirement.

But there may be another way to approach the problem. It may seem counterintuitive, but paying more into a pension through salary sacrifice could reduce your student loan deductions while helping you build financial security for the future.

The trick is understanding when this works, and when it doesn’t make sense.

How do student loan repayments work?

The first thing to understand is that student loan repayments are based on your earnings, not the total amount you owe.

Graduates are asked to repay a percentage of the income earned above a certain threshold. Those thresholds and repayment rates vary depending on the type of plan under which the loan was taken out.

For example, in the 2026/27 tax year, someone with a Plan 2 student loan starts repaying once their annual income exceeds £29,385. They repay 9% of their earnings above that amount.

So, if you earn £35,000 a year, your repayments would be calculated on £5,615 — the amount above the threshold. At 9%, that’s £505.35 a year, or around £42 a month.

If your earnings rise, your repayments usually rise too. On the other hand, if you never earn enough to cross the threshold, you won’t normally make repayments at all through your salary.

Importantly, the amount you owe doesn’t determine your monthly deduction. Someone with a very large balance and someone with a relatively small balance can pay the same amount if they earn the same salary and have the same type of loan.

This matters because some graduates may eventually repay their entire loan, while others may reach the end of their repayment term with money still outstanding. That means the best financial strategy for you could be very different to someone else’s.

How could paying more into your pension help?

The key is understanding the difference between making ordinary pension contributions and using salary sacrifice.

Option 1: Making ordinary pension contributions

If you pay into a workplace pension in the usual way, your contributions generally don’t reduce the gross salary used to calculate student loan deductions through PAYE.

That means increasing your pension contributions won’t normally reduce your student loan repayments if you’re employed and paying through payroll in the standard way.

You may still benefit from pension tax relief and build up more retirement savings, but your student loan deductions are unlikely to change.

Option 2: Using pension salary sacrifice

Salary sacrifice works differently.

You agree with your employer to give up some of your contractual salary in exchange for an additional employer pension contribution. Because your contractual salary is reduced, the earnings figure used to calculate student loan deductions through payroll can also fall.

That can have three potential benefits:

• Lower student loan repayments: if your salary falls while remaining above your repayment threshold, less of your income may be subject to student loan deductions.
• National Insurance savings: salary sacrifice can reduce National Insurance contributions, although the precise benefit depends on your circumstances and the rules in force.
• More money invested for retirement: the sacrificed salary is paid into your pension instead, helping you build up savings for later life.

Some employers also contribute some or all of their own National Insurance savings into their employee’s pension, but this isn’t guaranteed and depends on the employer’s policy.

The important point is that you’re not simply making your student loan disappear. You’re redirecting some of your earnings towards your pension, potentially reducing your student loan deductions along the way.

For example

A graduate earns £35,000 a year has a Plan 2 student loan.

Their annual salary is £5,615 above the 2026/27 repayment threshold of £29,385. At a repayment rate of 9%, their student loan deductions would be approximately £505 a year.

Now imagine they agree to sacrifice £2,000 of their annual salary in exchange for an additional employer pension contribution.

Their salary for student loan payroll calculations falls to £33,000. That leaves £3,615 above the threshold, giving annual repayments of approximately £325.

In this simplified example, student loan repayments fall by around £180 a year.

At the same time, £2,000 goes into their pension through the salary sacrifice arrangement, rather than being paid as salary.

These figures illustrate the principle rather than a guaranteed outcome. (They assume a Plan 2 loan, a full year at the stated salary, no other relevant adjustments and that the employer operates salary sacrifice in the way described.)

And it’s important to recognise that the £2,000 pension contribution isn’t free money: you’ve given up £2,000 of contractual salary to fund it. You would need to consider the effect on your take-home pay, pension arrangements and any other employment benefits.

However, the combination of pension saving, potential National Insurance savings and lower student loan deductions could make the arrangement attractive for some graduates.

Who might benefit most from this approach?

If you’re a graduate who has student loan balances that grow despite making regular repayments, and you think you may never repay the full balance before the remaining debt is written off, this strategy could work for you.

If you’re in that position, you might reasonably question whether it makes sense to put every spare pound towards clearing a student loan that may eventually be cancelled anyway.

Student loan repayments aren’t the same as repayments on an ordinary bank loan or credit card. You don’t generally have to clear the full balance at all costs, and making additional voluntary repayments can leave you worse off if the balance would otherwise have been written off.

If salary sacrifice reduces the amount you repay each month while allowing you to build up your pension, it could help you put more money towards your own future rather than paying down debt you might never fully clear anyway.

That doesn’t mean you should automatically increase your pension contributions. You still need enough money to cover your living costs, deal with unexpected expenses and meet nearer-term goals. But if you can comfortably afford to save more for retirement, and you expect your student loan to be written off before you clear it, it’s certainly worth investigating.

Who might not benefit from this approach?

The answer is less straightforward if you expect to clear your loan before the end of its repayment term.

Reducing your repayments now could mean you pay the loan off more slowly. Depending on the interest charged and how long you have left to repay, that could increase the total amount of interest you pay over the life of the loan.

In other words, a lower monthly deduction doesn’t necessarily mean a lower overall cost.

You would need to compare the potential benefits of salary sacrifice — including pension contributions, tax and National Insurance savings, and reduced student loan deductions — with the possible cost of carrying the loan for longer.

Your income is also likely to change over time. Future pay rises, bonuses and career progression could affect both your repayments and how quickly you clear the balance.

If you’re close to paying off your student loan, it’s especially important to check the figures before making a decision.

Does it make a difference if you’re a basic-rate or higher-rate taxpayer?

Both basic-rate and higher-rate taxpayers may benefit from pension salary sacrifice, but the overall financial impact can differ.

Higher-rate taxpayers generally receive a larger income tax benefit from pension saving than basic-rate taxpayers, depending on how their contributions are structured and their individual circumstances.

However, student loan repayment rates are determined by the type of loan and earnings above the relevant threshold, not by whether you pay basic-rate or higher-rate income tax.

That means the reduction in student loan deductions from sacrificing an additional £1 of salary is generally determined by your loan plan and whether you remain above the repayment threshold.

Your income tax position still matters when assessing the overall benefit, so it’s worth looking at the combined effect rather than focusing on student loan repayments alone.

What can you do now?

1. Check your student loan plan. Different plans have different repayment thresholds and terms.

2. Find out whether your employer offers salary sacrifice. Ask your HR team or payroll department how the arrangement works and whether increasing your pension contributions through it would reduce the salary used to calculate student loan deductions.

3. Look at your pension as well as your student loan. Consider how much you’re saving for retirement, whether you’re receiving the full employer pension contribution available to you and how much you can comfortably afford to contribute.

4. Work out whether you’re likely to repay the full loan. Your earnings, loan plan, interest rate and remaining repayment term all matter. Avoid making the decision based on the size of your current balance alone.

5. Check the effect on your finances overall. Salary sacrifice can affect other employment-related calculations and benefits, depending on your circumstances and your employer’s arrangements. Make sure you understand the effect on your take-home pay before agreeing to anything.