UK Savings Interest Rates and Account Types Explained (2026)

Getting to grips with savings interest rates is one of the simplest ways to make your money work harder, yet most people leave cash in an account that pays almost nothing. This guide explains the main UK savings account types, what "AER" really means, how the Bank of England base rate filters through to the rate you earn, and how your tax position quietly changes the picture. We will keep it evergreen: rather than quote today's headline numbers (which date within weeks), we will teach you how to compare accounts so you can always spot a good one.

How savings interest rates actually work

When you deposit money with a bank or building society, you are effectively lending it to them. In return they pay you interest, expressed as a percentage rate per year. Two banks can quote rates that look similar but behave very differently, so the first job is understanding the language.

AER vs gross: what AER means

You will see two figures on most accounts:

• Gross rate - the interest before any tax, paid at the stated frequency (monthly, annually, etc.).
• AER (Annual Equivalent Rate) - a standardised figure that shows what you would earn over a year if interest were paid and compounded annually.

AER is the one to compare between accounts, because it bakes in the effect of how often interest is paid. An account paying monthly interest compounds slightly faster than one paying annually, so its AER will be marginally higher than its gross rate. When two products are advertised side by side, comparing AER to AER is always a fair, like-for-like comparison.

How the Bank of England base rate affects savings

The Bank of England sets the base rate (officially "Bank Rate"), the interest rate it charges commercial banks. This is the gravitational centre of the whole savings market. When the base rate rises, banks can earn more on the money they hold, and competition tends to pull savings rates up. When the base rate falls, savings rates usually drift down too.

The link is not instant or one-for-one. Easy-access rates tend to move fairly quickly with the base rate, while fixed-rate bonds are priced on where markets expect the base rate to be in the future. That is why, when cuts are expected, fixed bonds can sometimes pay less than easy-access accounts - the market is pricing in tomorrow, not today.

The main UK savings account types

There is no single "best savings account"; the right one depends on when you need the money and how much you have. Here are the six types most savers will meet.

Easy-access accounts

The workhorse of personal saving. You can pay in and take out whenever you like, which makes them ideal for an emergency fund. The trade-off is that rates are variable and can be cut at short notice, and some headline-grabbing accounts include a temporary bonus that drops away after 12 months, leaving you on a much lower rate. Always check what the rate becomes once any bonus ends.

Notice accounts

A middle ground between easy-access and fixed. You agree to give the provider notice - say 90 days - before withdrawing, and in exchange you usually earn a little more. They suit money you are fairly sure you can plan around, such as a tax bill due later in the year.

Fixed-rate bonds

You lock a lump sum away for a fixed term and earn a guaranteed rate for the whole period. This is valuable when you want certainty, or when you expect rates to fall and want to bank a good rate now. The catch is access: most bonds do not allow withdrawals at all, and those that do impose a hefty interest penalty. Only fix money you are confident you will not need.

Regular savers

These often advertise eye-catching rates, but with strict rules: you can usually only pay in a limited amount each month (for example a few hundred pounds), and the account typically runs for 12 months. Because your balance builds up gradually, the headline rate applies to a small average balance, so the actual cash earned is modest. They are excellent for instilling a monthly saving habit from your salary. Our Regular Savings Calculator shows what a drip-fed pot really grows to.

Cash ISAs

A cash ISA works like an ordinary savings account, but interest is completely free of UK income tax, for life, with no limit on the tax-free interest. You can pay in up to the annual ISA allowance of £20,000 (across all your ISAs combined). Cash ISAs come in easy-access and fixed-rate flavours, mirroring the accounts above. Try the ISA Calculator to see tax-free growth over time.

Premium Bonds

Run by NS&I and backed by HM Treasury, Premium Bonds pay no interest. Instead, your bonds are entered into a monthly prize draw, and any winnings are tax-free. The "prize fund rate" is an average - many savers win nothing, while a lucky few win big. Your capital is 100% secure, but with average luck you will typically earn less than a competitive savings account. We cover the maths in our Premium Bonds explained guide.

FSCS protection: your £85,000 safety net

The Financial Services Compensation Scheme (FSCS) protects up to £85,000 per person, per banking authorisation, if a UK-regulated bank or building society fails. For joint accounts the limit is £170,000. The crucial subtlety: the limit applies per banking licence, not per brand. Some brands share a single licence, so spreading money across two names owned by the same parent may not give you two lots of protection. If you hold more than £85,000 in savings, split it across genuinely separate licences. NS&I products (including Premium Bonds) are backed by HM Treasury, so they are 100% secure with no £85,000 cap.

Tax on savings: the Personal Savings Allowance

Interest from non-ISA accounts can be taxable, but most people pay nothing thanks to the Personal Savings Allowance (PSA):

• Basic-rate (20%) taxpayers: £1,000 of interest tax-free each year.
• Higher-rate (40%) taxpayers: £500 tax-free.
• Additional-rate (45%) taxpayers: no PSA - all interest is taxable.

There is also a separate starting rate for savings of up to £5,000 taxed at 0%, aimed at people with low non-savings income; it tapers away as your other income rises above the Personal Allowance. Interest above your allowances is taxed at your normal income tax rate. This is exactly why a cash ISA matters most for higher earners and anyone with a large savings balance: once your interest exceeds the PSA, the ISA's tax-free wrapper starts winning even if its headline rate is a touch lower. For the full mechanics, see our guide to tax on savings interest and the PSA.

Worked example: interest earned in a year

Suppose you have £30,000 to save and you are a basic-rate taxpayer. Imagine an account paying 4.00% AER (used purely to illustrate the maths, not as a current rate):

• Interest in year one: £30,000 × 4.00% = £1,200.
• Your PSA covers the first £1,000, leaving £200 taxable.
• Tax at 20% on £200 = £40, so you keep £1,160.

Now compare leaving the same £30,000 in a legacy account paying just 0.50%: that earns only £150 - comfortably within the PSA, but you are £1,050 worse off than the 4.00% account for doing nothing. If you instead used a cash ISA at a similar rate, the whole £1,200 would be tax-free, saving the £40 of tax and protecting you in future years as your balance (and interest) grows. Run your own figures with the Savings Calculator.

How to choose the right savings account

1. Decide when you need the money. Emergency cash belongs in easy-access; money you can lock away may earn more in a fixed bond.
2. Compare AER, not gross. It is the fair like-for-like measure.
3. Check the tax angle. If your interest will exceed your PSA, a cash ISA likely wins even at a slightly lower rate.
4. Mind the FSCS limit. Keep no more than £85,000 per banking licence.
5. Watch for bonus expiry and maturity. Diarise when introductory bonuses end and when fixed bonds mature, then move the money.
6. Use more than one account. A common setup is an easy-access pot for emergencies plus a fixed bond or ISA for longer-term savings.

For more provider comparisons and how-to guides, browse our banking guides.

Common mistakes to avoid

• Leaving cash in a 0.x% legacy account. Old accounts are often quietly cut to near-zero rates. Check yours and switch - this is the single biggest, easiest win.
• Ignoring the PSA. Once your interest exceeds your allowance you owe tax; many savers are caught out as rates and balances rise. An ISA sidesteps this.
• Breaking a fixed bond early. The penalty can wipe out months of interest. Only fix money you are sure you can leave alone.
• Chasing a regular-saver headline rate without realising it applies to a small, slowly building balance.
• Exceeding £85,000 with one banking licence and assuming separate brands mean separate protection.
• Forgetting bonus and maturity dates, then sleepwalking onto a poor follow-on rate.

FAQs

Is AER or gross the rate I should compare?

Compare AER. It standardises for how often interest is paid and compounded, so AER-to-AER is always a fair comparison between two accounts.

Will I pay tax on my savings interest?

Often not. Basic-rate taxpayers get a £1,000 Personal Savings Allowance, higher-rate taxpayers £500, and additional-rate taxpayers none. Interest above your allowance is taxed at your income tax rate. Interest inside a cash ISA is always tax-free.

Are my savings safe if the bank fails?

Yes, up to £85,000 per person per banking authorisation under the FSCS (£170,000 for joint accounts). NS&I products are backed by HM Treasury, so they have no £85,000 limit.

Why do fixed bonds sometimes pay less than easy-access?

Fixed rates reflect where markets expect the Bank of England base rate to go. If cuts are expected, banks price future falls into today's fixed bonds, which can leave them below variable easy-access rates.

Are Premium Bonds worth it?

They offer tax-free prizes and total capital safety, but pay no guaranteed interest. With average luck most savers earn less than a competitive savings account, though the small chance of a large prize appeals to some.

Sources

• GOV.UK - Tax on savings interest and the Personal Savings Allowance
• Bank of England - Bank Rate (the base rate)
• MoneyHelper - Types of savings accounts

This guide is general information, not personal financial advice. For your own circumstances, speak to a qualified adviser.