PayBreakdown

APR to monthly payment calculator

Convert APR, loan amount, and term into an estimated monthly repayment and total interest planning figure.

How APR to payment is worked out

APR questions are usually repayment questions in disguise. This page connects APR, interest rate, loan amount, loan term, total interest, and monthly affordability in one planning view.

APR to a monthly payment

Enter the amount, the APR and the term to see what it costs each month.

Monthly payment£266
Total repaid
£9,593
Interest over the term
£1,593
Cost of the credit
19.91% of the amount borrowed

Over 36 months you repay £9,593 on £8,000 borrowed. A longer term lowers the monthly payment and raises the total.

This is arithmetic on the figures you enter, not debt advice. It assumes the rate and the payment both stay the same and that nothing further is borrowed, which is rarely how a real balance behaves. For free, regulated help, talk to MoneyHelper or StepChange.

Checks worth making on APR to payment

Assumptions used here

Assumptions used here
Tax/source year2026/27
RegionEngland/Wales/Northern Ireland
Tax code basis1257L where the page uses PAYE defaults
Pension basisNo pension deduction unless this example says otherwise
Student loan basisNo student loan unless selected in this example

Source and methodology context

Source and methodology context
What is not decided herePayBreakdown does not decide payroll correctness, lender approval, benefit entitlement or employer compliance, and does not give regulated financial, mortgage, debt, tax, payroll or legal advice.

What the APR to payment estimate assumes

The figures on this page are worked from APR to payment, using the values below. Open the calculator if your example salary differs.

Example salary£35,000 annual gross

What would change this figure

This estimate is worked out on £35,000 annual gross. Interest rate, term, fees, deposit and the credit commitments you already have all move the result, and a lender applies its own affordability policy and credit checks on top. Treat the number as a way to see whether a repayment looks comfortable or stretched, not as an offer — and read it against your real bills, savings and any income change you expect. See how each deduction is worked out.

Official sources

Income Tax rates and Personal AllowancesNational Insurance rates and categoriesStudent loan repayment thresholdsPension tax reliefFCA guidance on misleading financial promotions

Frequently asked questions

Is the apr to monthly payment calculator financial advice?

No. It is an estimate worked from published HMRC and GOV.UK figures for the current tax year, using the assumptions shown on this page. It cannot see your tax code history, benefits in kind or employer payroll rules, so check important decisions against your payslip, official guidance or a qualified adviser.

Can I adjust the assumptions?

Yes. Open the linked calculator to change the salary, pension, tax code, region or student loan plan and the figures update as you type.

Last updated 2026-08-27. Checked by Sean Elsmore. Rates last checked against GOV.UK on 2026-08-07. Estimates are for planning and should be checked against official records where the decision matters.