Mortgages
Fixed vs Variable Rates
One of the biggest choices when taking a mortgage is whether to fix your interest rate or take a variable one. Each has trade-offs between certainty and flexibility.
Key information
- A fixed rate keeps your payments the same for a set period
- Variable rates can rise or fall, so your payments can change
- Trackers follow the Bank of England base rate by a set margin
- When a deal ends you usually move onto the lender’s standard variable rate
On this page
Fixed-rate mortgages
With a fixed-rate mortgage, your interest rate — and therefore your monthly payment — stays the same for an agreed period, commonly two, three or five years. This gives certainty and makes budgeting easier, protecting you if rates rise during the deal.
The trade-off is that you will not benefit if rates fall, and fixed deals usually carry an early repayment charge if you leave before the term ends. When the fixed period finishes, you typically move onto the lender’s standard variable rate unless you switch to a new deal.
Variable-rate mortgages
Variable-rate mortgages can change over time. A tracker follows an external rate — usually the Bank of England base rate — plus a set margin, so your payment moves up or down when the base rate changes. A discount deal gives a reduction off the lender’s standard variable rate for a period.
- Tracker — moves directly with the Bank of England base rate by a fixed margin
- Discount — a set amount below the lender’s standard variable rate for a period
- Standard variable rate (SVR) — the lender’s default rate, which it can change largely at its discretion and is often higher
Choosing between them
If certainty matters most and you want to know exactly what you will pay, a fixed rate may suit you. If you can absorb changes in your payments and think rates may fall, a variable rate could cost less — but there is no guarantee. Because this depends heavily on your circumstances, many people take regulated advice before deciding.
Your rights & protection
- Your lender must set out the interest rate, how long any deal lasts, and what happens when it ends, before you commit.
- For variable rates, the lender must give you appropriate notice of changes to your payments.
- If you feel a rate or a change was applied unfairly, you can complain and escalate to the Financial Ombudsman Service.
General information, not personal advice
Consumer Credit is an independent information service. We do not provide regulated financial advice or sell financial products. For advice on your own situation, speak to an appropriately authorised firm or a free service such as MoneyHelper. About Consumer Credit.
Sources
We checked this page against these official and authoritative sources.
- MoneyHelper, Types of mortgage (opens in a new tab). Accessed 22 Aug 2026.
- Bank of England, Bank Rate (opens in a new tab). Accessed 22 Aug 2026.