Plan 5 for Low Earners: Why Repayment Probably Won't Happen
Last reviewed: 2026-09-20 · By Student Loan Calculator UK Editorial Team · Reviewed by Student Loan Calculator UK Editorial Team
Quick answer: Plan 5 borrowers with consistent earnings under £30,000 almost never repay their loan in full before the 40-year write-off. The loan functions as a graduate tax — 9% of income above £25,000, that ends after 40 years regardless of remaining balance. Your starting balance becomes irrelevant; only your income matters.
The Plan 5 low-earner reality
Plan 5 was introduced in 2023 with a £25,000 repayment threshold, lower than Plan 2's £29,385, and a 40-year repayment term. The government's explicit policy goal was to recover more of the loan from average earners. The unintended consequence for low earners is the opposite: with the threshold frozen and the term so long, the maths of repayment becomes almost decorative.
The Institute for Fiscal Studies projects that around 65% of Plan 5 borrowers will not repay their loan in full. For graduates whose careers settle below the median graduate salary, the loan is best understood as a 40-year supplementary tax on earnings above £25,000.
Plan 5 facts at a glance
- Threshold (2026-27): £25,000/year (£2,083/month; £480/week)
- Repayment rate: 9% of income above the threshold
- Write-off: 40 years from the April following course end
- Interest: RPI only, with no margin during or after study. First repayments became due in April 2026.
Monthly deductions at low salary levels
Below is what Plan 5 actually takes from your payslip across realistic low-earner salary bands (2026-27 tax year). Use the monthly repayment calculator for your exact salary.
| Gross annual salary | Monthly Plan 5 deduction | Annual Plan 5 deduction |
|---|---|---|
| £22,000 | £0 (below threshold) | £0 |
| £25,000 | £0 (below threshold) | £0 |
| £28,000 | £23 | £270 |
| £30,000 | £38 | £450 |
| £32,000 | £53 | £630 |
| £35,000 | £75 | £900 |
Worked example 1: £28,000 graduate, £45,000 balance
A 2026 graduate starts a junior public-sector role at £28,000 with a Plan 5 balance of £45,000. The calculation:
- Earnings above threshold: £28,000 − £25,000 = £3,000
- Annual repayment: £3,000 × 9% = £270
- Monthly PAYE deduction: £22.50
At 4.1% RPI interest, the loan accrues £1,845 in year-one interest while only £270 is repaid. The balance grows by £1,575 in the first year. Even with steady salary growth tracking inflation, this borrower will not clear the loan by year 40. The full remaining balance — projected at well over £100,000 in 2066 nominal terms — is written off.
Total lifetime contribution: approximately £10,800 across 40 years (£270/year × 40, ignoring inflation).
Worked example 2: career-break parent, £24,000 part-time
A graduate returns to work part-time at £24,000 after parental leave. Because earnings remain below the £25,000 threshold, monthly Plan 5 deductions are £0. RPI interest continues to accrue, but cash flow is unaffected. When the borrower returns to full-time work at, say, £32,000, deductions resume at:
- (£32,000 − £25,000) × 9% = £630/year or £52.50/month
Why your loan balance doesn't matter as a low earner
A common worry is the growing balance on the Student Loans Company portal. For low earners destined for write-off, the balance is psychologically uncomfortable but financially meaningless. Two graduates with identical £28,000 salaries pay identical £22.50/month — whether their balance is £20,000 or £60,000. The lender absorbs the difference at write-off.
The corollary: borrowing more maintenance loan during study costs you nothing extra in repayment if your career ends up on the lower end of the graduate earnings distribution.
Decisions that DO matter for low earners
- Never voluntarily overpay. Any overpayment reduces a balance that would have been written off anyway. Redirect those funds to a pension or ISA.
- Salary sacrifice still reduces deductions. If you do edge above £25,000, pension or cycle-to-work sacrifice lowers your Plan 5 deduction by 9p per £1 sacrificed.
- Self-employment changes the calculation. Plan 5 deductions for self-employed borrowers are based on profit after expenses — claim all legitimate expenses to reduce both income tax and student loan liability.
- Don't treat the loan as a debt. Mortgage applications, financial planning, and budgeting should treat Plan 5 as a tax on income, not a debt that must be cleared.
How Plan 5 compares for low earners vs Plan 2
Counter-intuitively, the threshold change makes Plan 5 worse for low earners than Plan 2:
| Feature | Plan 2 | Plan 5 |
|---|---|---|
| Threshold (2026-27) | £29,385 | £25,000 |
| Write-off term | 30 years | 40 years |
| Monthly deduction at £28,000 | £0 | £22.50 |
| Years of deduction | 30 | 40 |
A low-earner on Plan 5 pays £270/year for 40 years (£10,800 total) compared to £0 on Plan 2 if salary stays under £29,385. See our Plan 5 optimisation guide for strategy options.
What if my income rises later in my career?
Many low-earner graduates eventually move into higher-paid roles. If you cross the £85,000 threshold consistently, the repayment maths flips — see our Plan 5 for high earners page for the overpayment decision framework.
Related Plan 5 guides
- Plan 5 student loans: complete guide
- Monthly student loan repayment calculator
- Plan 5 optimisation guide
- Plan 5 during maternity leave
- Plan 5 repayment abroad
Frequently asked questions
If I earn under £25,000, do I pay anything towards my Plan 5 loan?
No. Plan 5 deductions only start once your annual income exceeds £25,000 (approximately £2,083 per month or £480 per week) for 2026-27. Below the threshold, you pay nothing through PAYE, and the loan continues to accrue RPI interest in the background.
Will my Plan 5 loan ever be repaid if I stay on a low salary?
Statistically, no. Modelling by the Institute for Fiscal Studies suggests that Plan 5 borrowers in the bottom 40% of graduate earnings are unlikely to repay their loan in full before the 40-year write-off. The loan is effectively a graduate tax that ends after four decades regardless of remaining balance.
Does it matter how big my Plan 5 balance is if I will never repay it?
No. For borrowers who will not clear the loan, the balance is irrelevant — repayment is determined by income (9% above £25,000), not by balance. A £30,000 balance and a £60,000 balance produce identical monthly deductions if your earnings are the same.
Should low earners make voluntary overpayments to Plan 5?
No. If you statistically will never repay in full, voluntary overpayments simply reduce a balance that would have been written off anyway. The money is effectively gifted to HMRC. Direct any spare cash to pension contributions, ISA, or emergency savings instead.
What happens to my Plan 5 loan during periods of unemployment?
Deductions stop automatically because there is no PAYE income to deduct from. RPI interest continues to accrue, but this does not affect your monthly cash flow. When you return to work and earn above £25,000, deductions resume at 9% of the excess.
Does Plan 5 affect my credit score or mortgage application?
Plan 5 does not appear on your credit file and does not affect your credit score. However, mortgage lenders treat student loan deductions as a fixed expense in affordability calculations, reducing your maximum borrowing by approximately 4 to 5 times the annual deduction.
Will my Plan 5 balance be visible on my payslip even if I owe nothing?
Your payslip will not show a Plan 5 deduction line if your monthly pay is below the £2,083 threshold. The Student Loans Company online account always shows the full outstanding balance regardless of repayment status.
If I marry someone with high earnings, do their wages affect my Plan 5 repayment?
No. Plan 5 repayment is calculated solely on your individual gross income, not household income. Marriage, civil partnership, or cohabitation has no effect on your monthly deduction.
Can I cancel my Plan 5 loan if I know I will never repay?
No. Plan 5 loans cannot be voluntarily cancelled. They are written off only at the end of the 40-year term, on death, or if certified permanently unable to work due to disability.
Sources: Department for Education — Plan 5 loans; Plan 5 repayment terms — gov.uk.