Remortgage Calculator UK
Compare your current monthly payment to an estimated new rate, factoring in your remaining balance and term.
Remortgage Calculator
Compare your current payment with a new estimated rate.
Current payment
£—
New payment
£—
Monthly difference
£—
Rough comparison only. Includes nothing other than capital + interest. Fees shown separately above.
Compare Remortgage OptionsHow to read the result
The “monthly difference” shows the gap between your current payment and what you’d pay on the new rate at the same balance and remaining term. A positive number means you’d save each month.
Things to factor in
- Product fee (often £499–£1,499) — paying upfront is usually cheaper than adding to the loan.
- Early Repayment Charge if you exit your current deal early.
- Valuation and legal fees — many remortgage products include free legals.
- Whether to switch lender or stay (a product transfer).
Get a proper remortgage quote
Request a callback and a mortgage adviser or broker partner can compare what your existing lender will offer you with the wider market.
Frequently asked questions
When should I start looking at remortgaging? +
About six months before your current fixed deal ends. Most lenders let you secure a new rate that far in advance and switch to it if better rates appear closer to the date.
What is an ERC? +
An Early Repayment Charge applies if you exit your mortgage during the fixed period. It’s usually a percentage of your outstanding balance and tapers down each year.
Can I remortgage with bad credit? +
Often yes, especially with your existing lender (a product transfer) which usually doesn’t require a new affordability or credit assessment.
Should I add the product fee to the loan? +
Adding the fee spreads it over the term but you pay interest on it. Paying upfront is cheaper overall if you have the cash.
What if I do nothing when my deal ends? +
You drop onto your lender’s Standard Variable Rate (SVR), which is typically much higher than fixed-deal rates.