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Student Loan Plans Explained (2025)

Your payslip just says "Student Loan", but the amount taken depends entirely on which Plan you are on. Here is the definitive guide to the thresholds and rules for the 2024/25 tax year.

The Golden Rule: 9%

For all undergraduate plans (1, 2, 4, 5), you repay 9% of everything you earn above the threshold. If you earn below the threshold for your plan, you pay £0.

Example: If your threshold is £27,295 and you earn £28,295, you earn £1,000 "over" the line. You repay 9% of that £1,000, which is £90 for the year (or £7.50/month).

The Plans Breakdown

Plan 1

Pre-2012
  • Who: Mostly English/Welsh students who started before Sept 2012.
  • Threshold: £24,990 / year
  • Interest: Low (tracked to BOE base rate / inflation).
  • Write-off: Usually age 65 or 25 years after graduating.

Plan 2

2012 - 2023
  • Who: English/Welsh students who started between Sept 2012 and July 2023.
  • Threshold: £27,295 / year (frozen).
  • Interest: High (often RPI + 3%).
  • Write-off: 30 years after graduating.

Plan 4

Scotland
  • Who: Scottish students (and EU students studying in Scotland).
  • Threshold: £31,395 / year (highest threshold).
  • Interest: Lower (Base rate + 1% or RPI).
  • Write-off: 30 years (or age 65 if older loans).

Plan 5

New (2023+)
  • Who: New students starting Aug 2023 onwards.
  • Threshold: £25,000 / year.
  • Interest: Tracked to RPI only (no "+3%").
  • Write-off: 40 years (Yes, forty).
Note: Being on Plan 5 means you repay more per month than Plan 2 (because the threshold is lower) AND you pay for longer.
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Postgraduate Loans

If you did a Masters or PhD (English/Welsh), you might have a Postgraduate Loan. These are repaid on top of your undergraduate loan.

  • Threshold: £21,000 / year
  • Rate: 6%

Limit Warning: If you earn £30k and have Plan 2 + Postgrad, you pay 9% on income over £27,295 AND 6% on income over £21,000. It adds up fast (effective tax rate > 40% for many graduates).