Student Loan Repayment Guide 2025-2026

Complete guide to understanding student loan repayments in the UK. Learn about all student loan plans, thresholds, repayment rates, and what happens if you have multiple loans.

Student loan repayments can seem complex, especially with five different plan types now in operation. Unlike traditional loans, you only repay when you earn above a certain threshold, and any outstanding balance is written off after a set period. Understanding which plan you're on and how much you'll repay is crucial for financial planning.

This guide covers all five types of student loan currently in repayment: Plan 1, Plan 2, Plan 4, Plan 5, and Postgraduate Loans. We'll explain the thresholds, rates, and what happens in various scenarios including having multiple loans.

Student Loan Plans: Quick Reference 2025-2026
All thresholds and rates at a glance
Plan TypeAnnual ThresholdMonthly ThresholdRepayment RateWrite-Off Period
Plan 1£26,900£2241.679%25 years or age 65
Plan 2£29,385£2448.759%30 years
Plan 4£33,210£2767.509%30 years
Plan 5£25,000£2083.339%40 years
Postgraduate£21,000£1750.006%30 years

Which Student Loan Plan Am I On?

Your student loan plan depends on when and where you started your course. Here's how to identify which plan you're on:

Plan 1Old English/Welsh Student Loans

You're on Plan 1 if you:

  • • Started your undergraduate course before September 2012 in England or Wales
  • • Studied in Scotland or Northern Ireland and started before September 1998
  • • Took out a loan for a course in Scotland or Northern Ireland at any time
Key Features:
  • • Lowest threshold (£26,900)
  • • Written off after 25 years or at age 65 (whichever comes first)
  • • Interest rate: RPI or RPI + 1%, capped at 3.2%
Plan 2English/Welsh Student Loans 2012-2023

You're on Plan 2 if you:

  • • Started your undergraduate course between 1 September 2012 and 31 July 2023 in England or Wales
  • • This is the most common plan for current working graduates
Key Features:
  • • Threshold: £29,385
  • • Written off after 30 years
  • • Interest rate: RPI + up to 3%, capped at 3.2% (with max 6.2% above £52,885)
Plan 4Scottish Student Loans

You're on Plan 4 if you:

  • • Lived in Scotland when you started your course
  • • Started your course on or after 1 September 1998
  • • Received funding from the Student Awards Agency Scotland (SAAS)
Key Features:
  • • Highest threshold (£33,210)
  • • Written off after 30 years
  • • Interest rate: RPI or RPI + 1%, capped at 3.2%
  • • Generally more favorable than Plan 2
Plan 5New English Student Loans (2023+)

You're on Plan 5 if you:

  • • Started your undergraduate course on or after 1 August 2023 in England
  • • This is the newest plan type
Key Features:
  • • Lower threshold than Plan 2 (£25,000)
  • • Written off after 40 years (longest period)
  • • Interest rate: RPI only, capped at 6%
  • • Higher repayments but lower interest
PostgraduateMaster's and Doctoral Loans

You have a Postgraduate Loan if you:

  • • Took out a loan for a master's degree (up to £12,167 for courses starting 2024-2025)
  • • Took out a loan for a doctoral degree (up to £28,673 for courses starting 2024-2025)
  • • This is in addition to any undergraduate loan
Key Features:
  • • Lowest threshold (£21,000)
  • • Lower repayment rate (6% vs 9%)
  • • Written off after 30 years
  • • Interest rate: RPI + 3%, capped at 3.2%
  • • Repaid simultaneously with undergraduate loan

How Student Loan Repayments Work

Student loan repayments are calculated as a percentage of your income above the threshold. If you're employed, they're deducted automatically through PAYE (Pay As You Earn) alongside tax and National Insurance. If you're self-employed, you pay through self-assessment.

Repayment Calculation Formula
Monthly Repayment =
(Monthly Income - Monthly Threshold) × Repayment Rate
You only repay on the amount you earn above the threshold

Example 1: Plan 2, £35,000 Salary

Annual calculation:
Income: £35,000
Plan 2 threshold: £29,385
Income above threshold: £5,615
Annual repayment: £5,615 × 9% = £505.35
Monthly repayment: £42.11

Example 2: Plan 4, £40,000 Salary

Annual calculation:
Income: £40,000
Plan 4 threshold: £33,210
Income above threshold: £6,790
Annual repayment: £6,790 × 9% = £611.10
Monthly repayment: £50.93

Important Points About Repayments

  • No repayment below threshold: If you earn less than your plan's threshold in any month, you pay nothing that month
  • Automatic deductions: Your employer deducts repayments automatically if you're on PAYE
  • Based on gross income: Repayments are calculated before tax, on your total salary including bonuses
  • No penalty for early repayment: You can make voluntary repayments at any time with no penalty
  • Written off eventually: Any remaining balance is written off after the write-off period

Having Multiple Student Loans

If you have both an undergraduate loan and a postgraduate loan, you repay both simultaneously. Each loan has its own threshold and rate, so you could be repaying 9% (undergraduate) + 6% (postgraduate) = 15% total on certain portions of your income.

How Multiple Loans Work Together

The key thing to understand is that each loan is calculated independently:

  • • Your undergraduate loan (Plan 1, 2, 4, or 5) is 9% of income above its threshold
  • • Your postgraduate loan is 6% of income above £21,000
  • • You pay both percentages on the overlapping portion of income
Example: If you have Plan 2 (threshold £29,385) and Postgraduate (threshold £21,000):
  • • £0 - £21,000: No repayment
  • • £21,000 - £29,385: 6% (postgraduate only)
  • • Above £29,385: 15% (9% + 6%)

Example: Plan 2 + Postgraduate, £50,000 Salary

Breaking down the repayments:
Postgraduate loan:
Income above £21,000: £29,000
Repayment: £29,000 × 6% = £1740.00/year (£145.00/month)
Plan 2 loan:
Income above £29,385: £20,615
Repayment: £20,615 × 9% = £1855.35/year (£154.61/month)
Total annual student loan repayment: £3595.35
Total monthly repayment: £299.61
This is 7.2% of gross salary

The Combined Impact

With multiple loans at higher salaries, student loan repayments can become a significant deduction:

SalaryPlan 2 OnlyPostgrad OnlyBoth Loans% of Salary
£30,000£55£540£5952.0%
£50,000£1855£1740£35957.2%
£70,000£3655£2940£65959.4%

Your Total Marginal Deduction Rate

When you combine income tax, National Insurance, and student loans, your marginal deduction rate (the percentage taken from each extra pound you earn) can be surprisingly high. Understanding this helps with decisions about overtime, pay rises, or side income.

Marginal Rates by Income (Plan 2 + Postgraduate)
How much of each extra £1 you keep after all deductions
Income LevelIncome TaxNational InsuranceStudent LoansTotal DeductionYou Keep
Below £21,0000-20%0-8%0%0-28%72-100%
£21,000-£29,38520%8%6%34%66%
£29,385-£50,27020%8%15%43%57%
£50,270-£100,00040%2%15%57%43%
£100,000-£125,14060%2%15%77%23%
Above £125,14045%2%15%62%38%

Note: The 77% rate between £100k-£125k is due to the personal allowance taper. This is the highest marginal rate in the UK tax system.

Should I Pay Off My Student Loan Early?

Whether to make voluntary early repayments depends on your plan type, income trajectory, and personal circumstances. Here are the key considerations:

Reasons to Pay Early
High earner likely to repay in full: If you'll definitely repay the loan before write-off, you save on interest
Plan 1 with low balance: Plan 1 has the lowest threshold so you're repaying anyway; early payment saves interest
Psychological benefit: Some people prefer being debt-free regardless of the financial maths
Mortgage application: While student loans don't appear on credit reports, some lenders consider them in affordability calculations
Reasons NOT to Pay Early
Unlikely to repay in full: Most Plan 2/5 graduates won't repay before write-off, so extra payments are wasted
Better investment returns: Money in a pension or ISA may grow faster than loan interest
Income protection: If your income drops, repayments automatically reduce. Early payments can't be reclaimed
Other debts first: Credit cards and personal loans have higher interest rates and no write-off

General Rule of Thumb

  • Plan 1: Consider paying off early if balance is low or you're a high earner
  • Plan 2: Only pay early if you're earning £50k+ and expect significant income growth
  • Plan 4: Similar to Plan 1, but higher threshold means less urgency
  • Plan 5: Very unlikely to benefit from early repayment for most graduates
  • Postgraduate: Consider if earning £40k+ with good career prospects

Calculate Your Student Loan Repayments

Use our free salary calculator to see exactly how much you'll repay on your student loan(s) for 2025-2026, along with income tax, National Insurance, and pension deductions.

Calculate Your Take-Home Pay

Frequently Asked Questions

What happens to my student loan if I move abroad?

You still have to repay your student loan if you move abroad. You need to inform the Student Loans Company and will make repayments based on the local threshold for the country you're living in (not the UK threshold). Repayments are typically 9% of income above the local threshold, paid directly to SLC rather than through PAYE.

Does my student loan affect my credit score?

No. Student loans don't appear on your credit report and don't affect your credit score. However, the monthly repayments are considered in mortgage affordability calculations, as they reduce your disposable income.

What if I can't afford my student loan repayments?

Student loan repayments are income-contingent, so if your income falls below the threshold, you automatically stop paying. There's no penalty for this. If you're unemployed or earning below the threshold, you simply don't make repayments during that time. You can't default on a student loan in the traditional sense.

Will my student loan be written off?

Yes, student loans are written off after a certain period: Plan 1 after 25 years or at age 65 (whichever is first), Plan 2 and Plan 4 after 30 years, Plan 5 after 40 years, and Postgraduate after 30 years. Any outstanding balance is cancelled, regardless of how much you've repaid. Most Plan 2 and Plan 5 graduates will not repay their loans in full before write-off.

Can I switch between student loan plans?

No, you can't choose or switch your plan. Your plan is determined by when and where you started your course. The only exception is if you have both an undergraduate and postgraduate loan, in which case you'll be on multiple plans simultaneously.

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