MoneyHelper Mortgage Repayment Calculator review

Reviewed by iTechGuides Editors · Editorial team · Updated Nov 2026

MoneyHelper Mortgage Repayment Calculator is a free web tool from the Money and Pensions Service for people estimating monthly payments on a new mortgage or an existing balance. It suits borrowers who want to explore repayment or interest-only estimates, rather than assess whether they can afford a mortgage. Users can base a calculation on property price or remaining mortgage balance, then enter deposit, term and interest rate.

The calculator focuses on repayment estimates and rate sensitivity. Changing the interest rate shows its effect on estimated monthly costs, which can help borrowers compare scenarios before speaking with a lender. This is a focused calculation rather than a full home-buying budget: it does not include affordability analysis, property tax or insurance inputs. People who need those elements in one tool should look for a calculator that covers them.

There is no paid tier to weigh against the free tool, and it is available through MoneyHelper’s website. Its scope is useful for an initial estimate, but the result is a guide: the lender confirms the exact repayment amount and payment date. Choose it for a straightforward view of repayments and rate changes; choose another resource if you need affordability assessment or a broader cost breakdown before making a borrowing decision.

MoneyHelper Mortgage Repayment Calculator pros and cons

• Where it wins
  • Estimates payments for a new mortgage or remaining balance
  • Supports repayment and interest-only calculations
  • Shows how interest-rate changes affect monthly costs
• Where it doesn't
  • Does not provide affordability analysis
  • Does not include property tax or insurance inputs
  • Lender must confirm exact repayment amount and payment date

MoneyHelper Mortgage Repayment Calculator fact sheet, pricing and score →

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Last updated 14 Nov 2026 · How we research and update