Student loan debt is a fact of life for most people in their 20s and 30s. In the US, the average borrower graduates with around $37,500 in federal student loan debt. In England, it’s closer to £45,000 by the time you finish a three-year degree. That’s a lot of money to carry before you’ve built any real financial momentum.
There are ways to chip away at it faster than your standard repayment plan allows — but for UK borrowers especially, paying it off early isn’t always the right call. This covers how to figure out your best strategy, how the snowball and avalanche methods apply to student debt, and what to understand about refinancing before you go down that route.
1. Know what kind of loan you have
In the US
Federal student loans come in several types: Direct Subsidised, Unsubsidised, PLUS, and consolidation loans. For the 2024-25 academic year, undergraduate federal loan rates sit at 6.53%, while graduate unsubsidised loans run at 8.08%. Private student loans vary by lender and your credit profile, but often carry higher rates.
Federal loans come with income-driven repayment plans, deferment options, and potential forgiveness programmes, the most well-known being Public Service Loan Forgiveness. Private loans have none of that flexibility, which matters when you’re deciding what to pay off first.
In the UK
UK student loans don’t work like conventional debt. Under Plan 2 (for most English and Welsh graduates who started between 2012 and 2022), you repay 9% of everything you earn above £27,295 per year. Under Plan 5 (students starting from September 2023 in England), the threshold drops to £25,000, but interest is capped at RPI only. Scottish students operate under Plan 1, with its own thresholds.
UK loans don’t affect your credit score, the interest is relatively low, and any unpaid balance is written off after 30 years (Plan 2) or 40 years (Plan 5). That write-off feature changes the maths significantly.
2. Should you overpay? (Especially important for UK borrowers)
Most people skip this question entirely, and it costs them.
For US borrowers with high-interest private loans, anything above 6-7%, overpaying usually makes financial sense. Federal loans are more nuanced. If you’re on an income-driven repayment plan working toward forgiveness, overpaying can actually work against you.
For UK borrowers, the honest answer is: probably not.
A 2022 analysis by the Institute for Fiscal Studies found that around 70% of English graduates under Plan 2 would have some or all of their debt written off before clearing it. Under Plan 5, with the 40-year write-off window, that figure is expected to be even higher.
If you’re in that majority, making large lump-sum overpayments is essentially a donation to the Student Loans Company. You’d pay more than you would through normal deductions and get nothing back.
The exception is high earners who expect to clear their full balance well before write-off. If your income trajectory means you’d repay the full amount plus interest anyway, overpaying reduces total interest paid. A repayment calculator on the UK government website can show you which camp you’re likely in.
3. Pick a repayment strategy for multiple loans
If you have more than one loan, common for US borrowers with a mix of federal and private debt, you need a plan for which one to attack first.
The debt avalanche
You direct extra payments toward the highest-interest loan first, while making minimum payments on the rest. Once that loan clears, you roll that payment amount into the next-highest rate loan. Mathematically, this is the cheapest route through your debt.
For someone with private student loans at 9% and federal loans at 6.5%, the private loan gets the focus first.
The debt snowball
You ignore interest rates and pay off the smallest balance first. It’s not the mathematically optimal approach, but clearing a loan entirely can keep you motivated in a way that watching a large balance inch downward doesn’t. If you’ve stalled on debt repayment before, the snowball often works better in practice even if it costs a bit more in total interest.
Neither is universally right. If you’re disciplined and motivated by numbers, go avalanche. If you need momentum, snowball works. The debt payoff guide has a full breakdown of both methods.
4. Practical ways to pay more each month
Even an extra $50 / £50 per month adds up. On a $30,000 loan at 6.5% over 10 years, paying $100 extra monthly saves over $3,000 in interest and cuts nearly two years off repayment.
Tax refunds, bonuses, and irregular income are easy targets. Since you weren’t counting on the money, putting it straight toward the loan means you won’t miss it.
When you get a raise, keep your lifestyle roughly the same and redirect the difference toward debt. It sounds obvious, but lifestyle creep is what quietly prevents most people from making real progress.
US federal loan servicers also offer a 0.25% interest rate reduction for enrolling in autopay. Small saving, zero effort.
One thing to do before throwing extra cash at loans: make sure you have at least $500-$1,000 / £500-£1,000 saved as a buffer. Without it, one unexpected expense sends you back to a credit card. Building that cushion first is the right order of operations.
5. Refinancing and consolidation
Refinancing means taking out a new loan at a lower interest rate to pay off your existing ones. It can save real money in interest, but the trade-offs matter.
When it makes sense
Refinancing is most attractive when you have high-interest private student loans and your credit score has improved since you first borrowed. If you graduated with mediocre credit and now have a strong profile and steady income, you could qualify for a significantly lower rate.
When to be careful
Refinancing federal loans with a private lender permanently removes their federal protections. Income-driven repayment, deferment, and forgiveness eligibility all disappear. For anyone who might pursue Public Service Loan Forgiveness, or who wants flexibility if their income drops, that trade-off is rarely worth making.
Run the full numbers before committing. Compare total interest paid under your current plan versus the refinanced plan, not just the monthly payment. A lower monthly payment that extends your term can cost you more overall.
In the UK
UK student loan refinancing isn’t a realistic option. The government-backed loans are tied to income rather than assets, so no commercial lender is going to offer a better deal on comparable terms. And given the write-off provisions, most UK borrowers wouldn’t benefit from moving to a private product anyway.
6. Mistakes worth knowing about
The most common one for UK borrowers is overpaying a loan that’s likely to be written off. Run the numbers on your specific situation before sending a lump sum.
For US borrowers, refinancing federal loans without fully understanding the consequences is the big one. Losing income-driven repayment and forgiveness eligibility is permanent. It’s worth thinking through every scenario before you sign.
If you’re carrying credit card debt alongside student loans, the credit cards should come first. Interest at 20%+ APR compounds aggressively compared to most student loan rates. How credit card interest actually works is worth a read if you haven’t thought about this before.
It’s also worth investing during repayment rather than waiting until you’re debt-free, particularly with federal or UK loans at relatively low effective rates. Time in the market matters more when you’re young. Starting to invest in your 20s covers the basics.
And income is a bigger lever than frugality. A salary negotiation that gets you an extra $3,000 / £3,000 a year, directed straight to your loans, will outpace almost any spending cut. The salary negotiation guide is worth reading before your next performance review.
Before you start throwing money at it
A lot of people skip straight to “how do I pay this off faster?” without asking whether that’s the right goal. For many UK borrowers, large overpayments aren’t just unnecessary — they’re a bad financial move. For US borrowers with high-rate private loans, the calculation looks completely different.
Get clear on what you actually have, then pick a strategy that fits your situation rather than the generic advice.
If you’re tackling debt more broadly, the 12-month debt payoff plan is a solid next step. The budgeting guide will help you find the extra cash to make it work.