£1,500 Short-Term Loan over 3 months: what it costs each month

Updated 7 November 2026 · ClearCost UK · 4 min read

At 29.9% APR, a £1,500 short-term loan over 3 months costs about £522.20 a month. You would repay £1,567 in total, which means £67 of interest. The table below shows the same loan at other rates, and the calculator lets you change the rate, amount and term.
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What a £1,500 short-term loan over 3 months costs at different rates

The rate you are offered depends on your credit score, your income and how much you borrow. The same £1,500 over 3 months can cost very different amounts, so it is worth seeing the whole range before you apply.

Moving the rate by one percentage point, from 29.9% to 30.9%, changes the monthly payment by about £0.66 and the total interest by about £2.

£1,500 over 3 months by interest rate

APRMonthly paymentTotal interestTotal repaid
12.7%£510.05£30£1,530
29.9%£522.20£67£1,567
42.6%£530.31£91£1,591
69.9%£545.82£137£1,637

Fixed rate, equal monthly payments, no fees.

The formula behind the payment

The payment on a fixed-rate loan is: amount × monthly rate ÷ (1 − (1 + monthly rate)−months). For £1,500 over 3 months at 29.9% APR the monthly rate is 2.2039%, which gives £522.20. Multiplying by 3 months gives £1,567 repaid in total, so the cost of borrowing is £67.

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Should you borrow £1,500 over 3 months or a different term?

A longer term lowers the monthly payment but you pay interest for longer. At 29.9% APR, repaying £1,500 over 3 months costs £522.20 a month and £67 in interest, while 1 year costs £143.62 a month and £223 in interest. That is £157 more for the lower payment.

£1,500 at 29.9% APR by term

TermMonthly paymentTotal interestTotal repaid
3 months£522.20£67£1,567
6 months£269.63£118£1,618
9 months£185.57£170£1,670
1 year£143.62£223£1,723

Interest versus capital: where your payments go

Early payments are mostly interest. In year 1 of this £1,500 loan, £67 of your £1,567 goes on interest and £1,500 reduces what you owe. By the last year the split reverses, which is why paying off a loan early saves more in the early years than the later ones.

£1,500 at 29.9% APR over 3 months

YearInterest paidCapital repaidBalance left
1£67£1,500£0

Totals for each year of the loan.

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What happens if you overpay your £1,500 loan?

Paying a little extra each month cuts the balance faster, so less interest is charged. Check that your lender allows overpayments and whether there is a charge: many allow up to a set amount a year without one.

Overpaying a £1,500 loan at 29.9% APR

Extra paymentNew monthly paymentLoan cleared inInterest saved
+£50 a month£572.203 months£3
+£100 a month£622.203 months£7
+£200 a month£722.203 months£13

Compared with the normal 3 months term. Fixed rate, no fees.

How to work out if the payment is affordable

A common check is to keep all debt repayments, including this short-term loan, below about a third of your take-home pay. A £522.20 payment fits that guide if your monthly take-home pay is at least £1,567.

Also look at what happens if your income drops. Choose a payment you could still make for several months without borrowing again.

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UK rules worth knowing before you borrow

  • Use an eligibility checker first. A "soft search" shows likely offers without leaving a mark on your credit file, while a full application leaves a hard search.
  • The advertised "representative APR" only has to be offered to at least half of the people who are accepted, so your own rate can be higher.
  • You have a right to repay a loan early. The lender can charge a limited amount of interest for doing so, so check the early repayment terms.
  • Free, impartial help with debts is available from MoneyHelper, Citizens Advice, StepChange and PayPlan.

High-cost short-term credit: the rules

  • Credit unions in England, Scotland and Wales can charge no more than 3% a month, which is 42.6% APR.
  • For high-cost short-term credit (payday-style loans) the FCA caps daily interest and fees at 0.8% of the amount borrowed, default fees at £15, and the total cost at 100% of the amount borrowed.
  • Compare a credit union loan, an arranged overdraft, a 0% credit card or help from your local council before you take a high-cost loan.
  • If you are struggling to repay, speak to the lender early and get free help from StepChange, PayPlan or Citizens Advice.

Ways to pay less interest

  • Pick the shortest term whose monthly payment you can comfortably afford. Going from 1 year to 3 months would save £157 on this loan.
  • Improve your credit file before you apply: register on the electoral roll, correct errors and pay existing bills on time.
  • Make extra payments when you can, as long as there is no penalty. Each extra payment cuts the balance that interest is charged on.
  • Borrow only what you need: every extra £1,000 at 29.9% over 3 months adds about £348.13 to the monthly payment.

Sources and further reading

Questions people ask

How much is a £1,500 short-term loan per month over 3 months?
At 29.9% APR it is about £522.20 a month. At 12.7% it is £510.05 and at 69.9% it is £545.82.
How much interest will I pay on £1,500 over 3 months?
At 29.9% APR you would pay about £67 in interest, which is 4% of the amount borrowed. At 69.9% the interest rises to £137.
Is it cheaper to borrow £1,500 over a shorter time?
Yes. The monthly payment is higher but the total interest is lower. Over 3 months the interest is £67 compared with £223 over 1 year at 29.9% APR.
What income do I need for a £1,500 short-term loan?
Lenders look at your whole budget, not one number. As a rough guide, a £522.20 monthly payment is easier to carry if your take-home pay is at least £1,567 a month and you have no large existing debts.
Does this calculator include fees?
No. It assumes a fixed rate, equal monthly payments and no arrangement or origination fees. Fees add to the real cost, so ask your lender for the full quote.

Results are estimates for information only, not financial advice. Read the full disclaimer.

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