UK student loans don’t work like a normal bank loan. They’re closer to a graduate tax, because you only repay when you earn over a set amount (the threshold), and most repayments happen automatically through your payslip.
That’s why two friends with the same “debt” can have totally different experiences. One might see deductions every month, another might pay nothing for years, and both could still end up having some of the balance wiped later.
This guide explains UK student loan repayments in plain English for January 2026: how thresholds work, what interest actually does, and when write-offs kick in, plus why your plan type changes everything.
Key Takeaways: How UK Student Loan Repayments Really Work
- You repay 9 percent of earnings above the threshold (for undergraduate plans), not 9 percent of your full salary.
- Most grads repay through PAYE payroll deductions, so it often feels invisible until you spot it on your payslip.
- If your pay drops under the threshold, repayments stop (they restart if your income rises again).
- Interest changes your balance, but it doesn’t change the 9 percent rule that sets your monthly repayment.
- Your plan type depends on when and where you studied, and it affects the threshold, interest rules, and write-off date.
- Any remaining balance can be written off after a set time (often 30 years, or 40 years for Plan 5).
- Paying extra is optional, and it only makes sense for some people.
Which Student Loan Plan Am I On And Why It Matters
Your repayment plan is mainly set by two things:
- When you started your course
- Where in the UK you studied (and which loan system you used)
Different plans have different thresholds, different interest rules, and different write-off timelines. So the plan you’re on can matter more than the size of the loan on your statement.
Here’s a quick comparison for the 2026 to 2027 tax year (from April 2026), to show why friends on similar salaries can pay different amounts.
| Plan | Typical Borrowers | Repayment Rate | 2026/27 Threshold (Yearly) | Why It Feels Different |
|---|---|---|---|---|
| Plan 1 | Older UK loans (often pre-2012) | 9% over threshold | £26,900 | Lower threshold than Plan 4, different interest rules |
| Plan 2 | England and Wales undergrads (2012 to 2023) | 9% over threshold | £29,385 | Threshold is frozen for years, interest can be tiered |
| Plan 4 | Scottish undergrads | 9% over threshold | £33,795 | Higher threshold, so many pay less each month |
| Plan 5 | England undergrads starting after Aug 2023 | 9% over threshold | £25,000 | Lowest threshold, 40-year write-off |
If you want to see the official “what you pay” rules in the simplest format, GOV.UK’s repayment explanation is here.
Plan 1, Plan 2, Plan 4, Plan 5: The Plain English Differences
- Plan 1: Usually applies if you started your course before September 2012. You repay 9 percent over the threshold, and the threshold for 2026/27 is £26,900.
- Plan 2: Usually applies if you studied in England or Wales from 2012 to 2023. You repay 9 percent over £29,385 (from April 2026), and the threshold is set to be frozen for a period.
- Plan 4: Usually applies if you’re repaying Scottish student loans. It’s similar in structure, but the 2026/27 threshold is higher (£33,795), so deductions start later.
- Plan 5: Usually applies if you started an English undergraduate course after August 2023. Repayments start from April 2026 for the first cohort, at 9 percent over £25,000, with a 40-year write-off.
For payroll and timing details on the first Plan 5 repayments, this overview is useful context from a payroll industry source: Plan 5 student loan details.
How To Check Your Plan And Avoid Common Mix Ups
You can usually find your plan type in a few places:
- Your payslip (it may show “Student Loan Plan 1/2/4/5”)
- Your Student Loans Company (SLC) online account
- Letters or messages from HMRC or SLC
Common mix-ups that catch people out:
Moving between UK nations: where you studied and which system funded you matters more than where you live now.
Having more than one loan type: you might have an undergraduate plan plus a postgraduate loan (postgraduate loans have different repayment rules, often 6 percent over a separate threshold).
Same salary, different deductions: if your colleague is on Plan 4 and you’re on Plan 5, your thresholds are miles apart, so your take-home pay won’t match.
Repayment Thresholds Explained: What You Pay, When You Pay, And How It Is Worked Out
The core rule is simple:
You only repay when your income goes over your plan’s threshold, and you repay 9 percent of the amount above it.
That’s why it behaves like a tax band. Cross the threshold and a small slice of your earnings gets taken. Stay under it and nothing is due.
For most employees, repayments are taken through PAYE. If you’re self-employed, repayments are usually handled through Self Assessment, based on your annual income.
Thresholds can change each tax year. Sometimes they rise with inflation, sometimes they’re frozen. A freeze matters because as wages rise over time, more of your pay sits above the threshold, so deductions grow even if the 9 percent rate stays the same.
If you like to read the policy detail from the source, Student loans: a guide to terms and conditions 2025 to 2026 is the clearest “big picture” document.
How Much Will They Take From My Pay Each Month
Here’s the quick maths for an estimate:
(Your salary minus your threshold) × 9% ÷ 12
Employers actually calculate it per pay period (monthly, weekly, four-weekly), so the exact deduction can jump around if your pay varies.
Example 1: Salary £26,000 on a £25,000 threshold (Plan 5 style)
You’re £1,000 over the threshold.
9% of £1,000 = £90 per year.
£90 ÷ 12 = about £7.50 per month.
Example 2: Salary £50,000 on a £29,385 threshold (Plan 2 from April 2026)
You’re £20,615 over the threshold.
9% of £20,615 = £1,855.35 per year.
£1,855.35 ÷ 12 = about £154.61 per month.
Example 3: Bonus month, then back to normal
If your monthly pay spikes because of overtime or a bonus, your employer may take a bigger repayment that month. Next month, it can drop again. Over the year, it usually balances out.
For career planning, your income affects repayments more than your loan balance. If you’re thinking about earnings after uni, this top-earning degrees guide can help you sense-check likely salary ranges.
Threshold Updates And Freezes: Why Your Repayments Can Change Without A Pay Rise
A threshold rise can feel like a tiny pay rise because less of your income sits above it. A threshold freeze does the opposite over time.
As of January 2026:
- Plan 2 uses a £29,385 threshold from April 2026, and it’s expected to be frozen for a period, which can slowly increase repayments for many grads as salaries rise.
- Plan 5 is set at £25,000 until 2027/28, then it’s expected to rise with inflation from April 2027.
For the official announcement style updates, see the government’s threshold and interest news pages, such as Student Loans Interest Rates And Repayment Threshold Announcement.
Student Loan Interest Explained: What It Changes And What It Does Not
Interest is the part that makes people panic, because it can make the balance look like it’s growing even while you repay.
The key point: interest changes your balance, not your monthly repayment rule.
Your repayment is still based on your income and the threshold. You don’t suddenly pay more each month because the interest rate went up.
Interest usually starts from when the loan is paid out, and it’s added regularly (often monthly). It matters most if you’re likely to clear the loan before the write-off date. If you won’t clear it, the balance can feel like a scoreboard that never stops, but it may not change what you actually pay over your working life.
How Interest Works On Each Plan (RPI, Tiered Rates, And Plan 5 RPI Only)
Interest rules can be hard to read because they reference RPI and sometimes add extra percentages.
RPI (Retail Prices Index) is a measure linked to prices in the UK. When people say “interest follows inflation”, this is what they mean.
A simple way to think about it: RPI-linked interest tries to stop your loan shrinking in real terms, even if you’re not paying much yet.
- Plan 2 (from April 2026): interest can be tiered, linked to income bands. One key income point that’s often referenced is £52,885, where the higher interest level applies for higher earners.
- Plan 5: interest is expected to be simpler than Plan 2’s older structure, but exact details should be checked for your account and year.
For the most reliable explanation of interest calculations, use the government’s technical overview: Income Contingent Student Loan repayment plans, interest rates and calculations (England).
When Paying Extra Can Help, And When It Is Probably A Waste
Extra repayments can feel like the “responsible” thing to do. Sometimes they help, sometimes they just reduce a balance that would have been written off anyway.
Paying extra can make sense if:
You’re likely to repay in full before the write-off date (often higher earners, or people with smaller loans).
You want to cut future interest and you’re sure you won’t need the cash.
You’ve already sorted expensive debt (like credit cards) and you have an emergency fund.
Paying extra is often a poor use of money if:
Your loan will probably be written off, because extra payments could be money you never needed to pay.
Your income is uncertain, because compulsory repayments stop when your income drops, but voluntary payments don’t stop unless you cancel them.
You’re saving for near-term goals, like a rental deposit or house deposit, where cash on hand matters.
This isn’t financial advice, but the common sense rule is: treat extra payments like any other big money choice. Compare it to your other priorities, not just the loan balance number.
Write Off Dates And Cancellation Rules: When Your Loan Can Disappear
UK student loans can be written off after a set number of years, as long as the loan is eligible for cancellation under its terms.
The clock usually starts from the April after you leave your course, or when you become eligible to repay. That’s why two people graduating in different years can have different write-off years, even if they borrowed similar amounts.
The big headline difference right now is that Plan 5 has a 40-year write-off, while many older plans are closer to 30 years. Some Plan 2 borrowers may also see different write-off lengths depending on when they took the loan out, so it’s smart to confirm your own date.
Typical Write Off Timelines For Plan 1, Plan 2, Plan 4, And Plan 5
A cautious summary (because exact rules can depend on your cohort and loan type):
- Plan 1: often written off after 30 years.
- Plan 4: often similar, around 30 years.
- Plan 2: can vary by start date and terms, often discussed as 30 years, but some borrowers may have different cancellation points.
- Plan 5: written off after 40 years from the April after leaving and entering repayment.
The best move is to check your own SLC account for your write-off date and terms, then plan around that reality.
What Happens If You Move Abroad, Take A Career Break, Or Earn Below The Threshold
Earn below the threshold: repayments stop. Interest may still add to the balance, but you won’t be charged repayments while you’re under.
Career break: same idea. If you’re not earning over the threshold, you don’t repay through payroll.
Move abroad: you may still need to repay, but the threshold can change based on the country you live in. You usually need to keep SLC updated with your address and income details. If you ignore it, you can end up with estimated repayments and penalties, which is an annoying problem to fix later.
If you’re self-employed (in the UK or abroad), repayment handling can get more admin-heavy. This overview of how student loan repayments interact with tax can help: Student Loans (Ross Martin).
Frequently Asked Questions About UK Student Loan Repayments For Graduates
Is It Worth Paying Off My Student Loan Early?
It depends on whether you’ll repay the loan in full before the write-off date. If you’re unlikely to clear it, overpaying can mean giving up money you could’ve kept.
Does Interest Mean I Will Pay More Each Month?
No. Your monthly repayment is based on your income, your plan threshold, and the 9 percent rule. Interest changes the balance in the background.
What If I Have More Than One Loan Plan?
You can have more than one, especially if you have an undergraduate loan and a postgraduate loan. Payroll should apply the right deductions, but the total taken can be higher because different loan types can run at the same time.
What If My Employer Is Not Taking Payments?
First check your payslip for your plan type and deductions. If nothing shows and you earn over the threshold, contact HR or payroll and check your SLC account too. Sometimes the issue is timing (a start notice hasn’t been applied yet).
Do Repayments Affect My Credit Score?
Student loan repayments don’t work like normal credit agreements, and they’re not managed like credit cards or overdrafts. Lenders may still ask about them in affordability checks, but they don’t show in the same way as consumer debt.
What Happens If I Am Self-Employed?
Repayments are usually handled through Self Assessment, based on your yearly income. That means you may not feel it monthly, but you still need to budget for it.
What Happens When The Loan Is Written Off?
Any remaining eligible balance is cancelled under the loan terms. You stop owing it, and repayments stop.
How Can I Estimate My Repayments Quickly?
Use: (salary minus threshold) × 9% ÷ 12. Then sanity-check it against your payslip once deductions start.
Conclusion
UK student loan repayments make more sense when you hold three ideas in your head: the threshold decides when you pay, interest changes the balance but not the repayment rule, and write-off dates mean many grads won’t repay the full amount anyway.
Next step checklist: check your plan type, note your threshold, estimate your monthly repayment, find your write-off date in your account, and only then decide if extra payments are worth it for your own situation.
