Remortgage Savings Calculator
Calculate how much you could save by switching mortgage deal.
Should I remortgage to a better rate?
First-year interest difference after fees
£1,501
Illustrative fee break-even: 6 months.
How to use this tool
Change the assumptions and the result updates immediately in your browser. The output is a planning estimate: check the entered figures, method, geographic scope, effective date and exclusions before using it for a decision.
Coverage and evidence
- Coverage
- United Kingdom
- Evidence basis
- Official UK guidance and published datasets where available
- Page reviewed
- 15 August 2026
- Cost
- Free, with no signup
Important limitations
Results depend on the accuracy of your inputs and the stated assumptions. Published datasets can be delayed, incomplete, revised, or cover different geographies. Financial, tax, mortgage, legal, safety, planning and valuation outputs are general information, not professional advice or a decision by a lender, authority, surveyor, solicitor or valuer.
Frequently asked questions
Is this tool free?
Yes. It works without an account and can be used repeatedly.
Can I rely on the result?
Use it as a starting point. Verify important results against the stated primary source and an appropriately qualified professional.