Remortgage And Overpayment Calculator

See how a different rate or extra payments change the modelled interest and term — not a lender quote.

This mortgage calculator provides estimates and does not replace professional mortgage advice.

Enter the current loan and the alternative you want to model

Mortgage Type

Property Value

£250,000

Mortgage Amount

£250,000

Loan-to-Value (LTV)

100.0%

Required Deposit

£0

Based on a property value of £250,000 and mortgage of £250,000

Interest Rate (%)

4.5%

Term (Years)

25 years

Monthly Overpayment

£150/month extra payment

Years After Start

(Year 5 of mortgage)

New Interest Rate (%)

Suggested rate: 4.0%

New Term (Years)

Early Repayment Charge (£)

Show me different remortgage strategies

Enable remortgaging for staircasing

Use existing equity and remortgaging to fund staircasing

What Remortgaging Can Change

Many borrowers could save hundreds of pounds monthly by switching to a better rate.

Overpaying even small amounts can shave years off your mortgage and save thousands in interest.

Lock in rates while they're favourable to protect against future interest rate rises.