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Student Loan Guide 2025-26

UK Student Loan Guide 2025-26

Plans 1, 2, 4 & 5 explained - thresholds, interest rates, write-offs, and whether to overpay.

Updated April 2026 · Money Meister · 4 min read

The UK student loan system is unlike any other debt - UK graduates don't repay like commercial loans. There's no bailiff, no credit impact from the loan itself, and most Plan 2 borrowers won't repay in full. Understanding which plan you're on, what you actually pay, and whether overpaying makes sense can save you thousands in unnecessary payments.

Student Loan Plans at a Glance (2025-26)

PlanWhoThresholdRateInterestWrite-off
Plan 1England/Wales pre-2012 & NI£24,9909%4.71%25 years
Plan 2England/Wales 2012-2023£27,2959%Up to RPI+3%30 years
Plan 4Scotland£31,3959%4.71%30 years
Plan 5England from Aug 2023£25,0009%RPI only40 years
PostgradMasters/Doctoral£21,0006%RPI+3%30 years

How to Use the Overpayment Calculator Properly

The calculator compares two paths: your baseline mandatory repayment vs a voluntary overpayment scenario. Read it in this order to avoid bad decisions.

  1. Pick your correct loan plan (including Postgraduate if relevant).
  2. Enter realistic salary growth, not optimistic guesses.
  3. Run baseline first with no overpayment.
  4. Add overpayment mode (monthly, one-off, or both) and compare: lifetime cash paid, write-off reduction, and years reduced.
  5. Treat the output as scenario analysis, then validate against official SLC data before committing.

Typical Plan 2 pattern

Many scenarios show higher lifetime cash paid with overpayments if substantial balance would have been written off.

Plan 1 / Plan 5 edge

Some higher-earning paths are more sensitive to voluntary overpayments and can improve timeline or total cost.

Postgraduate stacking

If deductions stack with undergraduate loans, test scenarios carefully before choosing overpayment priorities.

How Much Will You Repay Each Month?

Repayments are 9% of everything earned above your threshold (6% for postgraduate loan). The formula: (annual salary - threshold) x 9% ÷ 12

Plan 2 (£27,295 threshold)

£28,000/year£5.25/month
£30,000/year£20.25/month
£35,000/year£57.75/month
£40,000/year£95.25/month
£50,000/year£170.25/month
£60,000/year£245.25/month

Plan 5 (£25,000 threshold)

£26,000/year£7.50/month
£30,000/year£37.50/month
£35,000/year£75.00/month
£40,000/year£112.50/month
£50,000/year£187.50/month
£60,000/year£262.50/month

How Student Loan Interest Works

Plan 2 Interest (Most Complex)

Interest is RPI inflation plus an income-based supplement:

While studying + first year afterRPI + 3%
Earning ≤ £27,295RPI only (0% premium)
Earning £27,295 - £49,130RPI + 0% to 3% (tapering)
Earning > £49,130RPI + 3% (maximum)

Interest rates update each September based on the previous March RPI figure. During high inflation (2022-23), Plan 2 interest briefly hit 12%.

Plan 5 Interest (Simpler)

Plan 5 charges only RPI inflation at all income levels - making it more predictable but the 40-year write-off period means more risk of overall repayment exceeding the value of benefits received. Plan 5 borrowers are more likely to repay in full than Plan 2 borrowers.

Should You Overpay Your Student Loan?

This is the most asked student loan question - and the answer for most borrowers is no.

Don't Overpay If...

  • You're a Plan 2 borrower unlikely to repay by write-off date
  • You have higher-interest debt (credit cards, overdraft)
  • You haven't built an emergency fund (3-6 months expenses)
  • You're not contributing enough to your pension for employer match
  • The overpayment won't materially change your write-off outcome

Consider Overpaying If...

  • You're on Plan 1 and close to paying it off
  • You're a high earner who will clearly repay in full before write-off
  • The psychological burden of debt significantly affects your wellbeing
  • You've maximised all other financial priorities
  • Your salary trajectory makes full repayment before write-off very likely

Key insight: For most Plan 2 borrowers, the student loan functions more like a graduate tax - you pay 9% above the threshold for 30 years, then it's cancelled. Making voluntary overpayments beyond your mandatory 9% doesn't change when the loan is cancelled - it only reduces how much gets written off. If the loan would be written off anyway, those overpayments are effectively wasted.

Official guidance: Check your exact repayment plan, threshold, and current balance on the GOV.UK student loan repayment page.

Official source: GOV.UK - repaying your student loan. Rates and thresholds based on 2025-26 UK tax year. Always check HMRC for the latest figures.

Which student loan plan am I on?

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Your plan depends on when and where you studied: Plan 1 - Started undergraduate study in England or Wales before 1 September 2012, or Northern Ireland students (any year). Current threshold: £24,990/year. Plan 2 - Started undergraduate study in England or Wales on or after 1 September 2012 (up to 2023). Current threshold: £27,295/year. Plan 4 - Scottish students (and EU students who studied in Scotland). Current threshold: £31,395/year. Plan 5 - Started undergraduate in England after August 2023. Threshold: £25,000/year. Postgraduate Loan - Masters or doctoral students who borrowed from the Student Loans Company for postgraduate study. Different repayment rules apply (6% above £21,000, write-off after 30 years). Check your payslip for the deduction code, or log in to www.gov.uk/student-finance to confirm your plan.

Will I actually pay back my student loan in full?

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For most Plan 2 and Plan 5 borrowers, the honest answer is probably not. Institute for Fiscal Studies research suggests that only around 25-30% of Plan 2 borrowers repay in full before write-off; the majority will have remaining debt written off. Average debt at graduation (Plan 2, England) is now typically £40,000-£60,000 including interest. At a salary of £35,000, monthly repayments are £64 (Plan 2), rising as salary grows. If balance is £50,000 and salary grows at 3%/year, many borrowers will have substantial balances written off after 30 years. Plan 5 borrowers have a 40-year write-off period and a higher proportion are expected to repay in full due to stricter terms.

Should I make voluntary overpayments on my student loan?

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For most Plan 2 borrowers: almost certainly not. Here's why: if you're likely to have debt written off (i.e., you won't repay in full at the fixed 9% rate), making overpayments means you're paying more than you're legally required to with no benefit - you'd have paid the same regardless. The write-off happens regardless of the outstanding balance. Overpaying only makes sense if: (a) you are certain you'll repay in full before write-off, (b) you want to eliminate the psychological burden of the debt, or (c) it significantly affects your mortgage affordability. Consult our student loan calculator to see your repayment trajectory. Exception: Plan 1 borrowers close to paying off their loan may benefit from overpayments to clear it.

Does student loan debt affect mortgage applications?

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Student loan repayments are deducted from salary automatically via PAYE, reducing your take-home pay. Mortgage affordability assessments use your net income (take-home pay), so repayments do reduce how much you can borrow. The loan doesn't appear as credit card or personal loan debt on credit checks - it's not scored negatively. A £500/month student loan repayment could reduce mortgage borrowing by roughly £100,000-£120,000 depending on the lender's income multiple. Some lenders assess affordability based on take-home after deductions; others add back student loan repayments. Always be transparent about student loan repayments on mortgage applications - this is a legal requirement.

What happens to my student loan if I move abroad?

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Your repayment obligation continues if you move abroad, but the thresholds and amounts are adjusted for the country you're living in (based on comparable earnings). The Student Loans Company (SLC) asks you to voluntarily provide income information annually. You make repayments at the appropriate percentage above your country's equivalent threshold. Critically, ignoring your student loan abroad is a serious mistake - the SLC can obtain county court judgments in the UK against you, affecting your credit file and ability to return to the UK financially. The loan is still written off at the normal expiry date - you don't accrue extra time abroad.

Is student loan interest still charged if I'm not earning?

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Yes - interest accrues on your student loan balance regardless of whether you're earning, employed, or making repayments. No repayments are required if your income is below the threshold, but the balance continues to grow. For Plan 2 borrowers, interest is RPI (Retail Price Index) plus up to 3% while studying and in the first year after graduation, then based on your salary (RPI only at £27,295 threshold, rising to RPI+3% above £49,130). For Plan 5 borrowers, interest is set at RPI. Interest rates change in September each year. During high inflation periods (e.g., 2022-23 when RPI hit 12%), this caused substantial balance increases for many borrowers.

When is my student loan written off?

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Write-off dates vary by plan: Plan 1 - when you reach age 65 (if you took it out before 2005) or 25 years after the April you first became liable for repayments. Plan 2 - 30 years after the April you first became liable for repayments (typically around age 52). Plan 4 (Scotland) - 30 years after the April you first became liable. Plan 5 - 40 years after the April you first became liable. Postgraduate Loan - 30 years after the April following graduation. Written-off student loans are not taxed as income - they are simply cancelled with no tax consequence. The write-off date is fixed and doesn't change if you stop earning or defer repayments.

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Written by Darren

Founder & editor at Money Meister. Writes and reviews UK tax, mortgage, and budgeting guidance from primary sources (GOV.UK, HMRC, ONS).

Reviewed against current HMRC, FCA, ONS and Ofgem guidance before publication. How we research and review.

Sources: GOV.UK, HMRC, ONS, Ofgem.

The information in this article is for educational purposes only and does not constitute financial, tax, or investment advice. Always seek independent advice for your personal circumstances. Full disclaimer.