A fixed rate savings account lets you lock away a sum of money for a set period — typically between one and five years — in exchange for a guaranteed interest rate that won’t change during that term. What you see is what you get: the rate agreed on the day you open the account is the rate you’ll earn until the end of the fixed term.
In this guide, we explain how fixed rate accounts work, when they make sense, and what to watch out for before committing.
How does a fixed rate savings account work?
When you open a fixed rate savings account — sometimes called a fixed rate bond — you deposit a lump sum and agree to leave it untouched for a set period. In return, the bank or building society pays you a fixed rate of interest, usually higher than you’d earn on an easy access account.
At the end of the fixed term, your original deposit plus all the interest earned is returned to you. You can then choose to reinvest, move your money elsewhere, or spend it.
Interest is typically paid annually or at the end of the term, though some accounts pay monthly.
What are the main benefits?
A guaranteed return. The biggest advantage of a fixed rate account is certainty. You know exactly how much interest you’ll earn over the term, regardless of what happens to the Bank of England base rate. If rates fall during your fixed term, you’re protected.
Higher rates than easy access. Because you’re committing to leave your money with the provider for a set period, they can offer you a better rate in return. Fixed rate accounts consistently outperform easy access accounts for this reason.
Encourages discipline. If you tend to dip into savings, a fixed term can act as a useful barrier. Knowing your money is locked away makes it easier to leave it alone.
What are the drawbacks?
No access during the term. Most fixed rate accounts don’t allow any withdrawals during the fixed period. If you need the money early, you’ll typically face a penalty — often equivalent to several months of interest.
Rate risk in reverse. If interest rates rise significantly after you’ve fixed, you could find yourself locked into a rate that’s no longer competitive. This happened to many savers when the Bank of England raised rates sharply from 2022 onwards.
Lump sum required. Fixed rate accounts typically require a minimum deposit, often £500 to £1,000 or more. They’re designed for savers who already have a sum set aside, not for building savings month by month.
How long should I fix for?
The right term depends on your personal circumstances and your view on where interest rates are heading.
One year is the most popular choice — it offers a meaningfully better rate than easy access without tying your money up for too long. It’s also the easiest to plan around if you have a goal in mind.
Two to three years typically offers a further rate improvement and suits savers who are confident they won’t need the money and want to lock in a rate before any potential cuts.
Five years tends to attract savers with a longer horizon — those building towards a specific goal such as a house purchase or retirement fund contribution. Five-year fixed rates aren’t always higher than two or three year rates, so it’s worth comparing before committing.
As a general rule, only fix money you’re certain you won’t need during the term. Keep your emergency fund — typically three to six months of living expenses — in an easy access account and fix any surplus on top of that.
Are fixed rate savings accounts safe?
Yes — in the same way as any other UK savings account, provided your provider is covered by the Financial Services Compensation Scheme (FSCS). The FSCS protects up to £85,000 per person, per institution if the bank or building society fails.
Always verify FSCS protection before opening a fixed rate account — it’s especially important here because your money will be inaccessible for the duration of the term.
What should I look for when comparing fixed rate accounts?
The AER — Annual Equivalent Rate is the standard measure that lets you compare rates fairly across providers and terms. Higher is better.
The fixed term — Make sure the length suits your plans. A higher rate on a three-year account isn’t worth much if you’ll need the money in eighteen months.
Early access penalties — Find out what happens if you need to withdraw early. Some providers allow it with a penalty; others don’t allow it at all.
Minimum and maximum deposit — Check you meet the minimum deposit requirement, and note any maximum caps — some fixed rate accounts won’t accept more than £250,000 or £500,000.
Interest payment frequency — If you want your interest paid monthly (for example, as a form of regular income), not all fixed rate accounts offer this. Check before opening.
How much interest will I earn?
The interest you earn depends on your deposit amount, the AER, and the length of the term. Use our savings calculator to see exactly what you’d earn based on your balance and the current best rates.
Fixed rate vs easy access — which is right for me?
Most people benefit from using both. An easy access account handles your emergency fund and short-term savings. A fixed rate account handles any surplus you won’t need for a defined period, earning you a better return in the meantime.
For a full comparison of the best fixed rate accounts available right now, see our savings accounts guide.
Summary
A fixed rate savings account offers a guaranteed interest rate in exchange for committing your money for a set term. Rates are typically higher than easy access accounts, making them a strong choice for money you don’t need to touch in the short term. The key is to only fix what you’re genuinely comfortable leaving untouched — and always keep an accessible emergency fund alongside it.