What are the current Barclays Cash ISA rates?

Key takeaways

• Current Rates: Barclays Cash ISA rates range from 1.00% AER (variable) to 4.40% AER (fixed).
• Premier Advantage: The highest rates (4.40% AER fixed) are exclusive to Barclays Premier customers.
• Standard Rates: Non-Premier customers can access up to 4.15% AER (fixed) on 1-year and 2-year fixed ISAs.
• Withdrawal Limits: Many high-yield Barclays ISAs restrict withdrawals to one per term, capped at 10% of the balance.
• Transferring: You can transfer a Barclays ISA to another provider by having the new provider initiate the switch to protect your tax-free status.

Research shows that 52% of people with a Cash ISA use the same provider they use for their current account, but this isn’t always a good idea! The big high-street banks don’t necessarily offer the most competitive rates. To see how another provider could help you reach your savings goals faster, take a look at our guide to the Best Cash ISAs in the UK.

What are the current Barclays ISA rates?

Barclays currently offers seven Cash ISA savings products, but three of these ISAs are only available to Premier customers. Their Cash ISAs that are available to most customers have interest rates that range between 1.00% AER (variable) for their Instant Cash ISA to 4.15% AER (fixed) for their Single Access accounts. The highest rates, up to 4.40% AER (fixed), are reserved for their Premier customers.

Source: Current Barclays Cash ISA rates, accurate as of July 2026.

What is Barclays’ best Cash ISA rate?

Barclays’ current best Cash ISA rate is 4.40% (fixed) AER, but you’ll need to be a Barclays Premier customer to access this top ISA rate. The best Barclays Cash ISA rate available to most customers is 4.15% (fixed) AER, which you can get by opening its 1-year or 2-year Single Access Flexible Cash ISA. This is a reasonable rate, but there are some potential downsides. You can only make one withdrawal during the fixed period, and the withdrawal must be no more than 10% of your total balance. 

If you’re saving for short-term goals or there’s a chance you’ll need access to your money in an emergency, you may be better suited to an easy-access Cash ISA. Barclays does offer a Reward ISA at 2.75% AER (variable), but the catch is that your rate drops to just 0.85% AER (variable) in any month you make a withdrawal. Their Instant Cash ISA gives you fully unrestricted access, but comes with a rate of just 1.00% AER (variable), which isn't particularly competitive.

Thankfully, you can find more rewarding accounts with a different provider! Take a look at our guide to the best Cash ISAs on the market for more information.

Is Barclays a good Cash ISA provider?

Barclays is a solid choice if you value having a well-known high-street bank behind your savings, with the convenience of managing your ISA through their app, online banking or in-branch. However, their best Cash ISA rates are reserved for Barclays Premier customers, and their most competitive fixed-rate accounts come with withdrawal restrictions, which can make them less attractive. If you need easy access to your funds, you may be able to find better rates and more flexibility from other providers.

If you’re a first-time buyer and you’re saving a deposit, you’ll reach your savings goals sooner with a Lifetime ISA (LISA). You can save up to £4,000 of your total ISA allowance in a Lifetime ISA each year and benefit from a 25% bonus from the government, up to £1,000. So, if you max out your LISA for 3 years in a row, you’ll have a £15,000 deposit towards your first home - even more if you choose a LISA with a competitive interest rate!

Can I have two ISAs with Barclays?

Yes, you can have two Cash ISAs, but only one of them can be with Barclays. Since April 2024, you've been able to open and pay into more than one Cash ISA in the same tax year, as long as you're over 18. So, if you've already paid into a Barclays Cash ISA this tax year but want to open another, you can do so with a different provider. You can either keep both Cash ISAs or transfer your Barclays ISA into the new one.

Will Barclays increase ISA rates?

There's no guarantee either way. Barclays could increase its ISA rates, but it could just as easily lower them. The interest rates on their savings products are heavily influenced by the Bank of England’s base rate. When the base rate rises, banks and building societies tend to increase their savings (and mortgage) rates. When it falls, rates are often reduced.

The important thing to remember is that no one can predict exactly what will happen to interest rates in the future. However, if you already have a fixed-rate Cash ISA with Barclays, your interest rate will stay the same for the remainder of your fixed term, even if Barclays makes changes to its current ISA offering.

Learn more: Cash ISA or Lifetime ISA. Which one should I pick?

How to find the best Cash ISA rates

With so many providers to choose from, it’s a good idea to compare more than just the interest rate. You’ll also want to compare customer service quality, how easy it is to access your money and whether the provider offers bonuses or rewards. 

Take a look at our guide to the best Cash ISA rates for a handy breakdown of the most competitive accounts. 

At Tembo, for example, our savers can manage their money via our award-winning savings app. You can expect amazing customer service too (We’re rated Excellent on Trustpilot).

How to transfer a Barclays ISA to another provider

It’s easy to transfer your Barclays ISA to another provider. Simply open a new ISA and ask your new provider to transfer the money for you. Don’t try to complete the switch yourself, as this can impact your savings’ tax-free status and this year’s ISA allowance! It's also worth noting that some providers set a deadline for ISA transfers. For example, Barclays gives you just 30 calendar days from the date of account opening to transfer an existing ISA into one of their fixed-rate products. So if you're transferring to a new provider, make sure you act promptly.

Let’s imagine you’ve saved £35,000 in a Cash ISA over a number of years and you’d like to transfer your savings. If you try to move the money yourself, this could use up your full £20,000 ISA allowance for this tax year. You’ll also have to wait until the following tax year to move the remaining £15,000 into your new Cash ISA. Until then, you’d need to keep the money in a traditional savings account, where your interest would be taxed.

*Based on saving £100 at the beginning of each month for 5-years. Calculations show at month 61 (after 5-years) Tembo customers saving at 4.05% AER (variable) for the first 12 months, then 2.8% AER (variable) after that would have £242.49 on average more than saving with Barclays, HSBC, NatWest or Lloyds. Accurate July 2026.

**Fee-free mortgage advice is subject to eligibility, terms & conditions can be found here.