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Best-ofFixed rate savings accounts (usually called fixed-rate bonds in the UK) lock your money for a set term in exchange for a higher, guaranteed rate. Get the term right and they beat easy-access on returns; get it wrong and the penalty eats the premium. Here's how to choose.
Reading time: ~10 minutes · Reviewed July 2026
Rates change daily. Always verify at source before opening an account. Read our review methodology.
A fixed rate savings account (also called a fixed-rate bond, fixed-term deposit, or fixed rate saver) is a UK savings account with three defining features:
Deposits at UK-authorised banks and building societies are FSCS-protected up to £85,000 per person per banking group, exactly like easy-access savings.
| Term | Typical rate premium vs easy-access | Best for |
|---|---|---|
| 6 months | 0–20 bps | Money you're 100% sure won't be needed but want a small edge |
| 1 year | 30–60 bps | The mainstream choice — enough premium to matter, short enough that lock feels manageable |
| 2 year | 50–80 bps | Known deposits, planned car purchases, weddings 24 months out |
| 3 year | 60–120 bps | House deposit savers, medium-term goals |
| 5 year | 100–150 bps | Rare choice — this money often belongs in ISA or investments instead |
Both lock money for a fixed term at a fixed rate. The difference is tax:
Decision rule: if you're likely to exceed PSA, the ISA usually wins even if its headline rate is 20–30 bps lower. See our Best Cash ISAs UK and Personal Savings Allowance guide.
Instead of locking all your money at once, split it into equal tranches and open a series of bonds. This gives you rolling access without giving up all the rate premium:
The classic 5-year ladder on £50,000:
Each year one bond matures, giving you £10,000 in liquidity and the option to roll it forward into a new 5-year bond. You end up holding a permanent mix of maturities at broadly the average of prevailing 5-year rates.
The mainstream product. One lump sum, fixed for the term. Available at high-street banks, challenger banks (Chase, Zopa, Kroo, Atom, Charter Savings, Cynergy) and building societies. Compare across banking groups for FSCS coverage.
Same mechanics with an ISA wrapper. Contribution counts toward the £20,000 annual ISA allowance. Tax-free interest for the full term. See Best Cash ISAs UK.
You commit to depositing a fixed amount every month (typically £25–£500). Rate is often higher headline (5–8% AER) but applies to a smaller average balance. Usually 12-month terms.
Reality check: a 7% regular saver taking £250/month for 12 months earns you about £110 in interest, not the £210 you'd get if 7% applied to the full £3,000 for the whole year. Still competitive — but do the maths on average balance, not headline.
Platforms like Hargreaves Lansdown Active Savings, Raisin UK, and Flagstone let you access multiple provider bonds from one login. Rates are set by the underlying provider; the marketplace simplifies onboarding and FSCS management.
Example 1 — the 2-year house deposit tranche. Sam and Priya have £15,000 earmarked for a house purchase in about 24 months. Top 2-year fixed rate: 4.9%. Top easy-access: 4.5%. Extra interest over 2 years at 4.9% vs 4.5% ≈ £120. They lock 2/3 (£10,000) in a 2-year bond and keep £5,000 in easy-access for flexibility.
Example 2 — the higher-rate saver who should use ISA instead. Priya (higher-rate, £500 PSA) has £25,000. A 3-year taxable bond at 4.8% pays £3,780 gross over 3 years, of which about £2,280 is above her cumulative PSA. Tax at 40% = £912. A 3-year fixed Cash ISA at 4.5% pays £3,540 tax-free. Net: ISA £3,540 vs bond £2,868 — ISA wins by £672 over 3 years despite a lower headline rate.
Example 3 — the savings ladder in action. Alex has £30,000. Instead of one 3-year bond, splits it 3-way: £10,000 in each of 1, 2 and 3-year bonds. Total average yield close to the 2-year rate. Each year £10,000 becomes accessible — enough for planned expenses or roll forward.
| Pros | Cons |
|---|---|
| Higher rate than easy-access | Money locked for the term |
| Rate certainty regardless of base rate moves | Miss rate-rise opportunities |
| FSCS protected | Early withdrawal usually blocked or penalised |
| Discipline for prone-to-raid savers | Tax on interest above PSA |
| Available in both taxable and ISA formats | Regular saver headline rates can be misleading |
A fixed rate savings account (also called a fixed-rate bond) locks your money for a set term — typically 1, 2, 3 or 5 years — at a fixed interest rate guaranteed for the full term. Early withdrawal is usually blocked or triggers a substantial interest penalty.
Yes. UK-authorised fixed rate accounts are covered by the Financial Services Compensation Scheme up to £85,000 per person per banking group, exactly the same as easy-access savings.
Most UK fixed rate bonds don't allow early withdrawal at all. A minority allow it subject to a penalty (typically 60–360 days' interest forfeited). Read the terms before committing money you might need.
For higher- or additional-rate taxpayers approaching or exceeding their Personal Savings Allowance, a fixed rate Cash ISA usually wins after tax. For basic-rate taxpayers with unused PSA, the higher headline rate on a taxable bond can win.
Whenever you might need the money before maturity, when rates are expected to rise sharply, or when the rate premium over easy-access is minimal (under about 30 basis points). Bonds work when you're confident about both the time horizon and the interest environment.
Fixed rate savings accounts pay a rate premium in exchange for a term lock. The trade is worth it when your time horizon is genuinely certain, the premium over easy-access is at least 30 bps, and you've considered whether a Cash ISA at the same term would beat it after tax. The savings ladder strategy — splitting money across staggered terms — captures most of the rate premium while preserving annual liquidity.
Variable rate, instant liquidity.
Open comparison →Tax-free savings options.
Open comparison →Time-horizon framework.
Read guide →Banking-group rules.
Read guide →Tax on your interest.
Read guide →Project growth.
Open calculator →This is general information, not personalised financial advice. Rates change frequently — always verify at source. Pennywise Finance is not authorised by the Financial Conduct Authority. For complex situations, consult an FCA-authorised adviser or MoneyHelper.