Understanding your student loan in the UK often feels more like deciphering a cryptic tax code than managing a standard debt. Unlike a bank loan, student loan repayments are dictated by your income, not the size of the balance. As we move into the 2026 tax year, shifting thresholds and the introduction of new loan plans mean that the "write-off" - the point where the government wipes the remaining debt - is no longer a guaranteed safety net for everyone.

Whether your balance will eventually disappear depends entirely on which "Plan" you are on and your career trajectory over the next three to four decades.

The 2026 Landscape: Identifying Your Plan

The Student Loans Company (SLC) categorises borrowers into different plans based on when and where they studied. In 2026, the repayment thresholds (the amount you must earn before repayments are deducted) remain a critical factor in your monthly take-home pay.

| Loan Plan | Typical Borrower | 2026 Income Threshold (Annual) | Repayment Rate | Write-Off Period | | :--- | :--- | :--- | :--- | :--- | | Plan 1 | Pre-2012 (England/Wales) or Northern Ireland | £24,990 | 9% | Age 65 or 25 years post-grad | | Plan 2 | 2012 – 2023 (England/Wales) | £27,295 | 9% | 30 years post-grad | | Plan 4 | Scottish students | £31,395 | 9% | 30 years or age 65 | | Plan 5 | 2023 onwards (England) | £25,000 | 9% | 40 years post-grad | | Postgrad | Masters/Doctoral (England/Wales) | £21,000 | 6% | 30 years post-grad |

Note: Thresholds for Plan 1 and Plan 4 are subject to annual adjustments based on the Retail Price Index (RPI), while Plan 2 and Plan 5 thresholds are currently subject to government freezes.

How Repayments are Calculated

Regardless of your plan, you pay 9% of whatever you earn above your specific threshold. If you earn £1 under the threshold, you pay nothing. If you earn significantly over, the deductions can feel substantial.

Example: The £35,000 Salary (Plan 2 vs. Plan 5)

If you are earning £35,000 in the 2026 tax year, your repayments change based on when you started university:

  • Plan 2 Borrower: You pay 9% on the difference between £35,000 and £27,295 (£7,705). This equals £693.45 per year, or roughly £57.79 per month.
  • Plan 5 Borrower: Because your threshold is lower (£25,000), you pay 9% on £10,000. This equals £900 per year, or £75 per month.

For those on Plan 5, the combination of a lower threshold and a 40-year term means you will likely pay back significantly more over your lifetime than those who studied a decade earlier.

Will Your Loan Get Written Off?

The "write-off" is the holy grail of student finance. It is the moment the SLC closes your account, even if you still owe tens of thousands of pounds. For many, this is the most likely outcome.

You are likely to see a write-off if:

  • You are on Plan 2 with a high debt balance: If you graduated with £50,000+ in debt and your average salary stays below £45,000 for much of your career, the interest will likely accrue faster than you can pay it off. After 30 years, the remaining balance - which could technically be higher than what you started with - is cancelled.
  • You have significant career breaks: If you take time out for childcare, elder care, or periods of illness, your repayments pause. These years still count toward your 30 or 40-year write-off timer.
  • You work part-time: Consistent earnings just above the threshold mean you are "servicing" the interest but barely touching the principal.

You are unlikely to see a write-off if:

  • You are a high earner: If you are in a profession like medicine, law, or senior management with a salary exceeding £60,000 early in your career, you will likely clear the full balance before the 30 or 40-year mark.
  • You are on Plan 5: The 40-year term for Plan 5 is a a big help. Most graduates will now be paying into their 60s. This extended timeframe makes it much more likely that the average earner will eventually pay off the full loan plus interest.

Interest Rates: The Hidden Cost

Interest is added to your loan from the day you receive your first payment. In 2026, the way this interest is calculated varies wildly between plans.

  • Plan 2 Interest: This is tiered. If you earn below the threshold, interest is RPI (inflation). If you earn over £49,130, it is RPI + 3%. In 2026, with inflation stabilising, expect rates between 4% and 7%.
  • Plan 5 Interest: This is locked to RPI only. While this sounds better, the 40-year term means that even without "bonus" interest, the total amount paid back over four decades is often higher.
  • The "Prevailing Market Rate" Cap: If commercial bank loan rates fall below the student loan interest rate, the government is legally required to cap student loan interest to match. This protects borrowers during periods of hyper-inflation.

Should You Overpay in 2026?

For almost any other type of debt, the advice is "pay it off as fast as possible." For student loans, the opposite is often true. Overpaying is essentially a bet that you will eventually pay off the full loan before it is written off.

Do NOT overpay if:

  1. You are on Plan 2 or Plan 5 and earn a moderate salary: Any extra money you pay now is effectively a gift to the government if the loan was going to be written off anyway.
  2. You have other debts: Credit cards, car loans, and even some mortgages usually have higher "real-world" consequences and interest costs.
  3. You don't have an emergency fund: Student loan repayments stop if you lose your job; bank loan repayments do not. Keep your cash for liquidity.

Consider overpaying only if:

  • You are a very high earner and the interest (RPI + 3%) is significantly higher than what you could earn by saving that money in a high-interest ISA or investing it.
  • You are on Plan 1 and are very close to the end of the balance, and you want to clear the monthly cash flow for a mortgage application.

Special Circumstances: Moving Abroad or Self-Employed

Moving Abroad

If you leave the UK for more than three months, you must notify the SLC. Your repayment threshold will change based on the cost of living in your new country. For example, the threshold for someone living in Australia or the USA in 2026 will be higher than for someone living in India or Vietnam. Failure to update your details results in a "fixed installment" penalty, which can be as high as £250 per month, regardless of your actual income.

Self-Employment

If you are self-employed, your student loan is not deducted monthly. Instead, it is calculated as part of your annual Self-Assessment tax return. You must ensure you set aside 9% of your profits above the threshold to avoid a nasty surprise when your tax bill falls due in January.

Impact on Mortgages

A common myth is that student loans ruin your credit score. They do not appear on your credit report. However, they do affect mortgage affordability. When a lender calculates how much they can lend you, they look at your net income. A £150 monthly student loan payment is viewed by a bank the same way as a £150 car lease - it reduces the amount of "free" cash you have to service a mortgage.

Common Mistakes to Avoid

  1. Ignoring your annual statement: Check your online SLC account at least once a year. Ensure your employer is using the correct Plan. Being on Plan 2 when you should be on Plan 1 can cost you hundreds of pounds a year in over-repayments.
  2. Forgetting to stop DDs: In the final year of your loan, switch from PAYE (employer deductions) to Direct Debit. This prevents the SLC from over-collecting money after the balance is zero - a process that can take months to refund.
  3. Losing track of your "Write-Off" date: Keep a record of when you graduated. If the SLC continues to take money after your 25, 30, or 40-year window has closed, you are entitled to a full refund with interest.

Your 2026 Strategy

The 2026 tax year brings higher costs for many, especially those on Plan 5. Your best strategy is to view the loan not as a debt to be cleared, but as a graduate tax that funds your career potential. Unless you are in the top 10% of UK earners, focus on building your ISA, topping up your pension to get your employer match, and only then considering if your student loan balance is worth tackling.

To see exactly how many years you have left until your loan is cancelled and how much you'll likely pay in total, use our 2026 Student Loan Repayment Calculator.