Choosing between a fixed and variable rate mortgage is one of the biggest financial decisions you will make as a homeowner. The right choice can save you thousands of pounds over the life of your loan, but the wrong one can leave you exposed when interest rates move against you.
We break down how fixed and variable rate mortgages work and how to decide which suits your situation – whether you are buying your first home or remortgaging an existing property.
What is a fixed rate mortgage?
A fixed rate mortgage locks your interest rate for a set period – typically for two, three, five, or even ten years. Your monthly payment stays the same throughout that term, no matter what happens to the Bank of England base rate or the wider lending market.
The most common fixed deals are 2-year and 5-year fixes. After the fixed period ends, your mortgage usually reverts to your lender’s Standard Variable Rate (SVR), which is almost always higher than the rate you were paying. Most borrowers remortgage at this point to avoid the SVR jump.
Fixed rates are popular with first-time buyers because they offer certainty, as you know exactly what you will pay each month, which makes budgeting simpler and protects you from rising rates.
Benefits of a fixed rate mortgage
There are benefits to fixed rate mortgages such as;
- Predictable payments as you know exactly what leaves your account each month
- Protection from rate rises as if the Bank of England hikes rates, your payment doesn’t move
- Easier budgeting which is useful for first-time buyers and families on tight budgets
- Peace of mind and no anxiety when rates make headlines
However, this usually starts higher than variable rates, there are early repayment charges if you exit early, and there is no benefit to you if rates fall.
Who should consider a fixed rate mortgage?
A fixed rate is usually the better choice if you value certainty above all else, your budget has little room for higher payments, you are a first-time buyer still adjusting to homeownership costs, you expect interest rates to rise, or you are planning to stay in the property for the full fixed term.
What is a variable rate mortgage?
A variable rate mortgage has an interest rate that can change during your deal period – your monthly payment may go up or down depending on how rates move.
There are three main types of variable rate mortgage in the UK:
- Tracker mortgages: Follow the Bank of England base rate plus a fixed margin. When the base rate rises, so does your payment and when it falls, you pay less.
- Discount mortgages: Offer a discount off the lender’s SVR for a set period. Because the SVR can move at the lender’s discretion, these are less predictable than trackers.
- Standard Variable Rate (SVR): The default rate you fall onto after a fixed or tracker deal ends. It is set by the lender and is rarely competitive, most borrowers should remortgage before reaching it.
Benefits of a variable rate mortgage
The benefits of a variable rate mortgage are that they often have a lower starting rate, you benefit if rates fall, and many trackers have no early repayment charges. However, payments can rise, it’s harder to budget, and it can be stressful in a rising-rate environment.
Who should consider a variable rate mortgage?
A variable rate mortgage may suit you better if you have financial flexibility to absorb payment increases, you believe rates will fall or stay flat, you want the option to overpay or exit without early repayment charges, or you are remortgaging a smaller balance where the absolute payment swings are limited. Please note SOME variable rates do have early repayment charges
Should I get a fixed or variable rate mortgage? Which could save me more?
The answer depends on where rates go and right now, no one is certain.
The Bank of England held the base rate at 3.75% at its meeting in April 2026. CPI inflation sits at 3.3% and is expected to climb further as energy prices feed through.
| Feature | Fixed-Rate Mortgage | Variable-Rate Mortgage |
| Monthly payments | Stay the same during the fixed term | Can rise or fall over time |
| Protection from rate rises | Yes, you are protected | No, you are not protected |
| Benefit if interest rates fall | No, your rate stays locked in | Yes, your repayments could decrease |
| Budgeting | Easier and more predictable | Less predictable |
| Typical rates in 2026 | Slightly higher for added certainty | Often lower initially |
| Flexibility | Often includes early repayment charges | Usually more flexible |
| Best for | Buyers who want stability and certainty | Buyers comfortable with some risk |
| Could save you more if… | Rates rise or stay high | Rates fall steadily |
A fixed-rate mortgage gives you certainty. Your monthly repayments stay the same for a set period, usually two or five years, regardless of what happens to interest rates. That makes budgeting easier and protects you if rates rise again. Today, many borrowers are choosing five-year fixes because the gap between two-year and five-year rates has narrowed significantly.
Whereas a variable-rate mortgage, including tracker mortgages, moves up or down with the lender’s standard variable rate or the Bank of England base rate. The advantage is that variable deals are often cheaper initially and could save you money if rates fall later in the year. Some tracker products are currently priced below comparable fixed deals, which has made them more popular again.
How much does it cost to switch your mortgage
Whichever route you choose, it’s important to factor in the costs of getting the deal in place.
- Arrangement fees typically run from £0 to £1,500 and can sometimes be added to the loan.
- Valuation and legal fees apply on a remortgage, though many lenders include these as incentives.
- Early repayment charges (ERCs) are the big one. Most fixed deals charge 1% to 5% of the outstanding balance if you leave during the fixed period. On a £250,000 loan, that is £2,500 to £12,500 – enough to wipe out years of savings from a lower rate. Trackers often have no ERCs, which is part of their appeal.
Frequently asked questions
Can I switch from variable to fixed mid-deal?
Yes, most lenders allow you to switch products, though a fee may apply and you will be subject to the rates available at the time.
What happens at the end of my fixed deal?
At the end of your fixed deal you will be moved onto the lender’s SVR unless you remortgage. Start shopping for a new deal three to six months before your fix ends.
Are 10-year mortgage fixes worth it?
They offer the longest certainty but usually carry higher rates and steeper ERCs, but they make sense if you are confident about staying put and rates are historically low.
Do offset mortgages work with both?
Yes – offsets are available as fixed and variable products, they link your savings to your mortgage balance, reducing the interest you pay.
Get expert mortgage advice from Mortgage Saving Experts
Choosing between a fixed and variable rate mortgage is too important to leave to guesswork. At Mortgage Saving Experts, we compare deals across numerous UK lenders – so whether you’re a first-time buyer, remortgaging, or buying your next home, our expert mortgage advisers will stress-test your budget against rising and falling rate scenarios, calculate the true cost of every deal (including fees and ERCs) and recommend the right product for your circumstances.
Book your free, no-obligation mortgage consultation today.
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