Option A
Fixed rate
A fixed rate mortgage locks your interest rate for a set term, usually two, five or ten years, so the payment stays the same during that period.
Fixed vs variable rate mortgage: which is right for you?
Updated June 2026 9 min read
Quick verdict
A fixed rate suits borrowers who value predictable monthly payments. A variable or tracker rate can suit borrowers who want flexibility and can afford payments to rise. The right answer is less about guessing rates and more about how much payment uncertainty your budget can handle.
Option B
Variable rate
A variable mortgage can change when the lender's rate or the Bank of England base rate changes, depending on whether it is a tracker or discounted variable deal.
Side-by-side comparison
Fixed mortgages lock your payment for a set period. Variable mortgages can move up or down, often with more flexibility. Choose certainty if a payment rise would cause stress; choose variable only if you have enough headroom and understand the risk.
Payment certainty
Fixed rate
HighBetter
Variable rate
Low to medium
Protection from rate rises
Fixed rate
Yes during the fixBetter
Variable rate
No
Benefit from rate cuts
Fixed rate
Usually no until remortgage
Variable rate
Often yesBetter
Overpayment flexibility
Fixed rate
Often limited
Variable rate
Often more flexibleBetter
Early repayment charges
Fixed rate
Often higher
Variable rate
Often lower or noneBetter
Best for
Fixed rate
Budget certainty
Variable rate
Flexibility and rate-risk tolerance
| Compare | Fixed rate | Variable rate |
|---|---|---|
| Payment certainty | HighBetter | Low to medium |
| Protection from rate rises | Yes during the fixBetter | No |
| Benefit from rate cuts | Usually no until remortgage | Often yesBetter |
| Overpayment flexibility | Often limited | Often more flexibleBetter |
| Early repayment charges | Often higher | Often lower or noneBetter |
| Best for | Budget certainty | Flexibility and rate-risk tolerance |
Pros and cons
Fixed rate pros and cons
Pros
- ✓Predictable payments
- ✓Protection if rates rise
- ✓Easier household budgeting
- ✓Popular for borrowers with tight affordability
Cons
- -May cost more if rates fall
- -Early repayment charges can be significant
- -Overpayments may be capped
- -You usually need a new deal when the fix ends
Variable rate pros and cons
Pros
- ✓Can benefit if rates fall
- ✓Often more flexible
- ✓May have lower early repayment charges
- ✓Can suit active overpayers
Cons
- -Payments can rise
- -Harder to budget
- -Risky for stretched borrowers
- -Discounted variable rates may be less predictable than trackers
Cost examples
First-time buyer
If a higher payment would cause stress, a fixed rate may be worth paying for.
- Likely fit
- Fixed
Flexible overpayer
A borrower with spare income and plans to overpay may value a variable rate's flexibility.
- Likely fit
- Variable
Possible mover
If you might move soon, compare early repayment charges carefully before fixing for a long term.
- Key check
- ERCs
When to choose Fixed rate
- ›You want predictable payments
- ›Your budget is tight
- ›You plan to stay through the fixed period
- ›You prefer certainty over possible savings
- ›A rate rise would be difficult to absorb
When to choose Variable rate
- ›You can afford payment rises
- ›You may move or remortgage soon
- ›You want stronger overpayment flexibility
- ›You understand tracker or variable rate risk
- ›You have savings or income headroom
FAQs
What happens when a fixed rate ends?
You usually move onto the lender's standard variable rate unless you remortgage or choose a new product. It is worth reviewing options several months before the end date.
What is a tracker mortgage?
A tracker mortgage normally follows the Bank of England base rate plus a set margin, so payments can rise or fall when the base rate changes.
Can I overpay on a fixed rate mortgage?
Often yes, but many fixed deals limit penalty-free overpayments, commonly to a percentage of the balance each year.
Are variable mortgages always cheaper?
No. They may start lower or become cheaper if rates fall, but they can also become more expensive if rates rise.
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