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 the estimated payment on the new rate at the same balance and remaining term. It does not include all fees or eligibility checks.
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? +
Many borrowers start reviewing options about six months before their current fixed deal ends. Some lenders let you secure a new rate in advance and change it if a better option is available later.
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? +
It may be possible, depending on your circumstances, lender criteria and credit history. Product transfers with an existing lender may involve a different assessment from a full remortgage.
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 may move onto your lender’s Standard Variable Rate (SVR), which can be higher than your current deal. Check your mortgage offer and ask your lender or adviser if unsure.