Best Buy Cash ISAs

Find the best cash ISA rate to make the most of your tax free allowance.

Online Easy Access Cash ISA

from Post Office Money

Interest Rate (AER) 4.16%
  • Term: Instant Access
  • Invest From: £100

Interest paid annually. Unlimited deposits and withdrawals. ISA transfers also allowed in (some providers charge a transfer fee). Open and manage online. FSCS Protected.. Must be UK resident and be aged 18 or older. After 12 months the interest rate changes to 1.45% AER variable. Online ISA is provided by OneFamily, savings in Post Office Cash ISAs are deposited with Bank of Ireland UK

Cash ISA

from Plum

Interest Rate (AER) 4.66%
  • Term: Easy Access*
  • Invest From: £1

Mobile App only ISA account. *Up to three withdrawals can be made within each 12-month without affecting the interest rate. The Plum Cash ISA includes a 2.54% AER variable underlying rate and a bonus rate of 2.12% for the first 12 months. More than three withdrawals made within each 12-month period, a lower rate of 2.54% (variable) will be applied. Transfer in any ISAs you hold with other providers. Interest rates drop if more than three withdrawals per year. Covered by FSCS. Rate when you transfer in your existing ISA – 2.54% AER (variable). Rate for each 12-month period after your first 3 months – 2.54% AER (variable). Rate when balance drops below £100 or after your fourth annual withdrawal – 2.54% AER (variable). Must be UK resident and be aged 18 or older

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Cash ISA

from Moneybox

Interest Rate (AER) 4.65%
  • Term: Easy Access*
  • Invest From: £500

*Up to three withdrawals can be made within each 12-month without affecting the interest rate. The Moneybox Cash ISA includes a 3.45% AER variable underlying rate and a bonus rate of 1.10% for the first 12 months (bonus only applicable to new ISA deposits. ISA transfers in receive  the underlying rate only). More than three withdrawals made within each 12-month period, a lower rate of 0.75% (variable) will be applied.  Up to three withdrawals can be made within each 12-month period from the date of opening without affecting the interest rate. Customers can transfer in any ISAs they hold with other providers into a Moneybox Cash ISA, on web and in-app. Covered by FSCS. If more than three withdrawals made within each 12-month period, a lower rate of 0.75% (variable) will be applied for the rest of that 12-month period. The lower interest rate of 0.75% will also apply if the account balance dips below £500, automatically returning to the higher interest rate when the balance returns to £500 or more again. Must be UK resident and be aged 18 or older

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Online Easy Access Cash ISA

from Post Office Money

Interest Rate (AER) 4.16%
  • Term: Instant Access
  • Invest From: £100

Interest paid annually. Unlimited deposits and withdrawals. ISA transfers also allowed in (some providers charge a transfer fee). Open and manage online. FSCS Protected.. Must be UK resident and be aged 18 or older. After 12 months the interest rate changes to 1.45% AER variable. Online ISA is provided by OneFamily, savings in Post Office Cash ISAs are deposited with Bank of Ireland UK

Online Easy Access Cash ISA

from Leeds Building Society

Interest Rate (AER) 4.16%
  • Term: Easy Access
  • Invest From: £1,000

Interest paid annually. Unlimited deposits and withdrawals. ISA transfers also allowed in. Open and manage online. FSCS Protected. Must be UK resident and be aged 18 or older

Instant Access Cash ISA

from Tesco Bank

Allows ISA Transfers
Interest Rate (AER) 4.06% Gross/AER*
  • Term: Instant Access
  • Invest From: £1

Headline rate includes a guaranteed fixed bonus rate of 3.01% for the first 12 months, plus the standard variable rate which is currently 1.05%. After 12 months, you’ll continue to receive the standard variable rate. Interest paid annually. Open and manage online or on mobile banking app. Unlimited deposits (up to a combined limit of £20,000 across your ISAs within this tax year) and unlimited withdrawals. ISA transfers also allowed in. FSCS Protected. Maximum balance £1,000,000. Must be UK resident and be aged 18 or older

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Cash ISA

from Tembo

Allows ISA Transfers
Interest Rate (AER) 4.05%
  • Term: Easy Access
  • Invest From: £10

Includes a 2.80% AER variable underlying rate and a bonus rate of 1.25% for the first 12 months (ISA transfers in receive 4.00% AER variable). Unlimited deposits and withdrawals. Transfer in any ISAs you hold with other providers. Interest accumulates daily, and is paid into your account every month. All money in your Cash ISA is held securely with partner banks Barclays & Bank of Scotland who are covered by the FSCS. Rated ‘Excellent’ on Trustpilot. Variable rate of interest. Must be UK resident and be aged 18 or older

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Unlimited Access 1 Year Online Cash ISA

from Yorkshire Building Society

Interest Rate (AER) 4.05%
  • Term: Easy Access (unlimited withdrawals for 1 year)
  • Invest From: £1

Interest paid at maturity. Unlimited withdrawals for whole term. After 1 year your money will be automatically transferred to an online easy access ISA. Open and manage online. FSCS Protected. Must be UK resident and be aged 18 or older

Open Access Cash ISA

from Moneybox

Allows ISA Transfers
Interest Rate (AER) 3.80%
  • Term: Instant Access
  • Invest From: £500

Mobile App only ISA account. The Moneybox Open Access Cash ISA includes a 3.25% AER variable underlying rate and a bonus rate of 0.55% for the first 12 months. Unlimited withdrawals. Interest paid monthly. A lower rate of 0.75% (variable) will be applied if balance drops below £500. Customers can transfer in any ISAs they hold with other providers into a Moneybox Open Access Cash ISA, on web and in-app. Covered by FSCS. Must be UK resident and be aged 18 or older

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Cash ISA

from Lightyear

Allows ISA Transfers
Interest Rate (AER) 3.75%
  • Term: Easy Access
  • Invest From: £1

Lightyear’s Cash ISA pays whatever the current Bank of England base rate is (currently 3.75%). Unlimited deposits within HMRC ISA limits, and withdrawals. Transfer in any ISAs you hold with other providers. Flexible ISA: withdraw and repay into the same ISA in the same tax year without it counting towards your annual allowance. Interest earned daily, paid monthly. Variable rate of interest, will move in line with Bank of England base rate. Must be UK resident and be aged 18 or older. Lightyear Cash ISA money is invested into QMMFs and therefore capital is at risk. 

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Easy Access ISA

from Yorkshire Building Society

Allows ISA Transfers
Interest Rate (AER) 3.60%
  • Term: Easy Access
  • Invest From: £1

Unlimited deposits and withdrawals. Interest paid annually. ISA transfers in also allowed. Open and manage your account online. FSCS Protected. Maximum balance £2,000,000. Must be UK resident and be aged 18 or older

Instant Access Cash ISA

from Wealthify, an Aviva company

Interest Rate (AER) 3.35%
  • Term: Instant Access
  • Invest From: £1,000

3.35% AER / 3.30% tax-free p.a (variable), interest paid monthly. Flexible ISA – withdraw and replace funds without affecting your annual ISA allowance. Unlimited deposits and withdrawals. Interest paid monthly. ISA transfers also allowed in. FSCS Protected. Tax treatments depend on your individual circumstances and may change in the future’. Powered by ClearBank: Wealthify will provide the day-to-day servicing of the account with ClearBank providing the account itself. Must be UK resident and be aged 18 or older

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Easy Access ISA

from OakNorth

Allows ISA Transfers
Interest Rate (AER) 2.75%
  • Term: Instant Access
  • Invest From: £1

Unlimited deposits and withdrawals. Interest paid monthly. ISA transfers also allowed. Open and manage online or in app
FSCS Protected. £500,000 maximum deposit across all OakNorth accounts. Must be UK resident and aged 18 or older

1-Year Fixed Rate Cash ISA

from Investec Save

Allows ISA Transfers
Interest Rate (AER) 4.60%
  • Term: 1 Year
  • Invest From: £1,000

Interest paid annually. ISA transfers in also allowed. Open and manage online. FSCS Protected. Maximum balance £1,000,000. Must be UK resident and be aged 18 or older. Withdrawals permitted subject to 90 days lost interest

12 Month Fixed Rate Cash ISA

from OakNorth

Interest Rate (AER) 4.62%
  • Term: 12 Months
  • Invest From: £1

Interest paid monthly. ISA transfers also allowed in. Maximum balance £500,000. FSCS Protected. Must be UK resident and be aged 18 or older. 90-day interest penalty on early withdrawals

1 Year Fixed Rate Cash ISA

from Tesco Bank

Allows ISA Transfers
Interest Rate (AER) 4.40% Gross/AER
  • Term: 1 Year
  • Invest From: £1

Interest paid annually. New deposits between £1 and £20,000. ISA transfers in also allowed. Open and manage online or on mobile banking app. FSCS Protected. After 12 months, your account will switch to an Instant Access Cash ISA and receive the standard variable rate. Must be UK resident and be aged 18 or older. Withdrawals permitted subject to 90 days lost interest

1 Year Fixed Rate e-ISA

from Yorkshire Building Society

Allows ISA Transfers
Interest Rate (AER) 4.40%
  • Term: 1 Year
  • Invest From: £100

Interest paid at maturity. ISA transfers also allowed in. Tax free interest. FSCS Protected. Must be UK resident and be aged 18 or older. No withdrawals permitted. Closure permitted with 90 days’ loss of interest

1 Year Fixed Rate Cash ISA

from Post Office Money

Interest Rate (AER) 4.30%
  • Term: 1 Year
  • Invest From: £500

Interest paid annually. ISA transfers also allowed in (some providers charge a transfer fee). Open and manage online. FSCS Protected. Must be UK resident and be aged 18 or older. Withdrawals permitted subject to 90 days loss of interest. Online ISA is provided by OneFamily, savings in Post Office Cash ISAs are deposited with Bank of Ireland UK

1 Year Fixed Rate Cash ISA

from Leeds Building Society

Interest Rate (AER) 4.30%
  • Term: 1 Year
  • Invest From: £100

Interest paid annually. ISA transfers also allowed in. Open online, in branch or by post. FSCS Protected. Must be UK resident and be aged 18 or older. Withdrawals permitted subject to 90 days lost interest

1 Year Fixed Rate Cash ISA

from Hampshire Trust Bank

Interest Rate (AER) 4.20%
  • Term: 1 Year
  • Invest From: £1

Interest paid at maturity. ISA transfers also allowed in. Maximum deposit £250,000. FSCS Protected. Winner of Platinum Feefo Trusted Service Award in 2024. Must be UK resident and be aged 18 or older. No withdrawals permitted

2 Year Fixed Rate Cash ISA

from RCI Bank

ISA Option
Allows ISA Transfers
Interest Rate (AER) 4.80% tax-free
  • Term: 2 Years
  • Invest From: £1000

Interest paid monthly or annually. ISA transfers in up to a maximum account balance of £1,000,000. FSCS Protected. Must be UK resident and be aged 18 or older. 180 day interest charge on early withdrawals

24 Month Fixed Rate Cash ISA

from OakNorth

Interest Rate (AER) 4.55%
  • Term: 24 Months
  • Invest From: £1

Interest paid monthly. ISA transfers also allowed in. Maximum balance £500,000. FSCS Protected. Must be UK resident and be aged 18 or older. 180 day interest penalty on early withdrawals

2 Year Fixed Rate e-ISA

from Yorkshire Building Society

Allows ISA Transfers
Interest Rate (AER) 4.45%
  • Term: 2 Years
  • Invest From: £100

Interest paid annually. ISA transfers also allowed in. Tax free interest. FSCS Protected. Must be UK resident and be aged 18 or older. No withdrawals permitted. Closure permitted with 180 days’ loss of interest

2 Year Fixed Rate Cash ISA

from Leeds Building Society

Interest Rate (AER) 4.40%
  • Term: 2 Years
  • Invest From: £100

Interest paid annually. ISA transfers also allowed in. Open online, in branch or by post. FSCS Protected. Must be UK resident and be aged 18 or older. Withdrawals permitted subject to 180 days lost interest

2 Year Fixed Rate Cash ISA

from Post Office Money

Interest Rate (AER) 4.25%
  • Term: 2 Years
  • Invest From: £500

Interest paid annually. ISA transfers also allowed in (some providers charge a transfer fee). Open and manage online. FSCS Protected. Must be UK resident and be aged 18 or older. Withdrawals permitted subject to 180 days loss of interest. Online ISA is provided by OneFamily, savings in Post Office Cash ISAs are deposited with Bank of Ireland UK

2 Year Fixed Rate Cash ISA

from Hampshire Trust Bank

Interest Rate (AER) 4.25%
  • Term: 2 Years
  • Invest From: £1

Interest paid annually. ISA transfers also allowed in. Maximum deposit £250,000. FSCS Protected. Winner of Platinum Feefo Trusted Service Award in 2024. Must be UK resident and be aged 18 or older. No withdrawals permitted

3 Year Fixed Rate e-ISA

from Yorkshire Building Society

Allows ISA Transfers
Interest Rate (AER) 4.50%
  • Term: 3 Years
  • Invest From: £100

Interest paid annually. ISA transfers also allowed in. Tax free interest. FSCS Protected. Must be UK resident and be aged 18 or older. No withdrawals permitted. Closure permitted with 270 days’ loss of interest

3 Year Fixed Rate Cash ISA

from Leeds Building Society

Interest Rate (AER) 4.40%
  • Term: 3 Years
  • Invest From: £100

Interest paid annually. ISA transfers also allowed in. Open online, in branch or by post. FSCS Protected. Must be UK resident and be aged 18 or older. Withdrawals permitted subject to 270 days lost interest

3 Year Fixed Rate Cash ISA

from Hampshire Trust Bank

Interest Rate (AER) 3.75%
  • Term: 3 Years
  • Invest From: £1

Interest paid annually. ISA transfers also allowed in. Maximum deposit £250,000. FSCS Protected. Winner of Platinum Feefo Trusted Service Award in 2021. Must be UK resident and be aged 18 or older. No withdrawals permitted

36 Month Fixed Rate Cash ISA

from OakNorth

Interest Rate (AER) 3.30%
  • Term: 36 Months
  • Invest From: £1

Interest paid monthly. ISA transfers also allowed in. Maximum balance £500,000. FSCS Protected. Must be UK resident and be aged 18 or older. 270 day interest penalty on early withdrawals

5 Year Fixed Rate e-ISA

from Yorkshire Building Society

Allows ISA Transfers
Interest Rate (AER) 4.55%
  • Term: 5 Years
  • Invest From: £100

Interest paid annually. ISA transfers also allowed in. Tax free interest. FSCS Protected. Must be UK resident and be aged 18 or older. No withdrawals permitted. Closure permitted with 360 days’ loss of interest

5 Year Fixed Rate Cash ISA

from Leeds Building Society

Interest Rate (AER) 4.50%
  • Term: 5 Years
  • Invest From: £100

Interest paid annually. ISA transfers also allowed in. Open online, in branch or by post. FSCS Protected. Must be UK resident and be aged 18 or older. Withdrawals permitted subject to 365 days lost interest

5 Year Fixed Rate Cash ISA

from Hampshire Trust Bank

Interest Rate (AER) 4%
  • Term: 5 Years
  • Invest From: £1

Interest paid annually. ISA transfers also allowed in. Maximum deposit £250,000. FSCS Protected. Winner of Platinum Feefo Trusted Service Award in 2024. Must be UK resident and be aged 18 or older. No withdrawals permitted

Best Buy Cash ISA

Whatever the current best buy cash ISA is, is dependent on changes to rates and other potential variables, therefore before taking out a new Cash ISA it can be a good idea to shop around various different providers to try and find the best product for you.

You can use the tables on this site to compare a selection of ISAs from a variety of different providers and follow the links to find out more.

About cash ISAs

All eligible individuals can open up to one Cash ISA and contribute up to the maximum ISA allowance into it each tax year.

Cash ISAs offer a straight forward way to earn interest on your savings. They work similarly to the standard savings accounts offered by different banks and building societies. The main difference is that all interest earned on money within the account, up to the maximum allowance, is paid tax-free.

Types of Cash ISA

There are varying types of Cash ISA offered by different providers, which type of Cash ISA is best for you will be dependent on how you wish to save:

  1. Instant Access Cash ISAs: Instant Access products tend to allow the account holder to make unlimited, free withdrawals and deposits up to their maximum ISA allowance. This type of account tends to offer a variable rate of interest meaning the rate you receive on the account could fluctuate over time.
  2. Fixed-term/rate ISAs: Fixed-term or fixed-rate ISAs tend to require savers to lock their money in the account for a predefined period of time usually without being able to make either full or partial withdrawals from the account, some may allow withdrawals but subject penalty usually calculated at a set amount of days worth of interest. In return for locking their cash into the account savers are normally offered a fixed rate of interest, meaning the interest rate will stay the same over the course of the ISA. Fixed-rate ISAs tend to be offered for periods of time from between one to five years, generally speaking the longer the period of the ISA the better the rate of interest offered by the provider.

Transfers

It’s possible to transfer an ISA to another either the same or a different provider. However, while all ISA providers are required to permit account holders to transfer away, they do not have to allow transfers in from other ISAs. ISA providers can also charge an interest penalty for moving away from their account. This means that while moving ISAs can sometimes be beneficial, for reasons such as achieving a better interest, savers should first check that the account they wish to move to accepts transfers in, it is also wise to consider if after factoring in any penalty that might be incurred for transferring away if it would cancel out the potential benefits of a better rate of interest.

It is possible to transfer between different types ISA such as from an Investment ISA into a cash ISA or vice versa.

Frequently Asked Questions

Can I lose money in an ISA?

You can lose money in a Stocks and Shares ISA if your investments go down in value. You cannot lose money with a Cash ISA.

Can I transfer my Cash ISA into a Stocks and Shares ISA?

Yes, you can transfer from your Cash ISA to a Stocks and Shares ISA at any time. However, do check you won’t lose out by transferring, as some Fixed Rate Cash ISAs may charge a fee or void your interest if you surrender your policy before the fixed term has ended

Can I withdraw money from an ISA?

For Cash or Stocks and Shares ISAs, yes, although some Cash ISAs may charge a fee or void your interest if you surrender your policy before the fixed term has ended.

How much money can I put in a Stocks and Shares ISA?

You can add £20,000 for the current tax year, and this amount refreshes each tax year.