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Compare Cash ISAs /

Compare High Interest ISA

Pick the best high interest ISA to save your tax free allowance.

Limited Issue Online Easy Access Cash ISA

from Leeds Building Society

Interest Rate (AER) 4.95%
  • Term: Easy Access
  • 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

Calculate your interest with this plan

Your savings:
£
You could gain:
£0.00 (per tax year)

30 Day Notice Cash ISA

from Aldermore

Interest Rate (AER) 4.50%
  • Term: Easy Access
  • Early withdrawals are permitted subject to loss of interest equivalent to the notice period
  • Open account with £1000

Calculate your interest with this plan

Your savings:
£
You could gain:
£0.00 (per tax year)

E-ISA Instant Access Cash ISA

from Leeds Building Society

Interest Rate (AER) 2.45%
  • Term: Instant Access
  • Low minimum deposit
  • 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

Calculate your interest with this plan

Your savings:
£
You could gain:
£0.00 (per tax year)

1 Year Fixed Rate Cash ISA

from Aldermore

Interest Rate (AER) 5.30%
  • Term: 1 Year

1 Year Fixed Rate Cash ISA

from Leeds Building Society

Interest Rate (AER) 5.05%
  • Term: 1 Year
  • 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 60 days lost interest

Calculate your interest with this plan

Your savings:
£
You could gain:
£0.00 (per tax year)

2 Year Fixed Rate Cash ISA

from Leeds Building Society

Interest Rate (AER) 5.10%
  • Term: 2 Years
  • 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 150 days lost interest

Calculate your interest with this plan

Your savings:
£
You could gain:
£0.00 (per tax year)

2 Year Fixed Rate Cash ISA

from Aldermore

Interest Rate (AER) 5.00%
  • Term: 2 Year

3 Year Fixed Rate Cash ISA

from Leeds Building Society

Interest Rate (AER) 4.85%
  • Term: 3 Years
  • 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 240 days lost interest

Calculate your interest with this plan

Your savings:
£
You could gain:
£0.00 (per tax year)

3 Year Fixed Rate Cash ISA

from Aldermore

Interest Rate (AER) 4.85%
  • Term: 3 Years
  • £1,000 minimum opening balance

Calculate your interest with this plan

Your savings:
£
You could gain:
£0.00 (per tax year)

High Interest ISA

Technically, since there is no tax deductible on the interest gained in Individual Savings Accounts, each ISA can be considered a high interest ISA. However, certain ISAs have much higher interests than others.

These ISAs allow for a much greater return on investment regardless of the investment type, that is cash, stocks or shares. A high-interest ISA is one that has a high-interest rate throughout the entire term and mostly, these rates are fixed, as is the term of the investment.

There are different types of high-interest isa accounts:

Fixed-rate ISA

In this account, the interest rate is pre-determined and fixed. Therefore the deposit made on this account gains a steady interest per the set interest rate.

The set term for investment is annual. The deposit or investment is made once in the fixed rate ISA, arguably the highest interest ISA. At the beginning of the term, the individual makes a single deposit or investment and cannot add more to the account. This ISA is, therefore, best for an individual with a relatively large sum of money who wishes to invest it all at once.

After the deposit is made, depending on provider criteria, the individual usually cannot withdraw from the account and has to wait until the end of the set term, which will depend on how long the term is. Fixed-rate ISA terms can vary typically from 1 year to 5 years. The interest gained is, therefore, greatly dependent on the initial deposit.

An individual can deposit as much as possible as long as it does not exceed the allowance limit, which is £20,000 for the 2022/2023 tax year.

Easy Access or Instant Access ISAs

These types of isa accounts can be instant access, easy access or notice accounts where it is possible to make regular deposits. Individuals also have more flexibility with these accounts than with a fixed-rate ISA.

With these isa accounts, the interest available may vary and may not provide the higher interest you can achieve through a fixed rate isa.

Oliver Roylance-Smith
Edited by Oliver Roylance-Smith - ISA.co.uk

Frequently Asked Questions

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.

The annual ISA allowance is set by HMRC each year, and the current limit is £20,000 per person for the 2023/24 tax year.

Whether you receive dividends from your Stocks and Shares ISA will depend on the underlying investments you hold inside it. If your investments generate dividends, then you can opt to withdraw these automatically to your bank account tax-free if you wish.

No, all payments from an Income ISA is completely free from tax.

The amount of income your ISA pays is not guaranteed and will fluctuate based on your investment value and the income your investments can produce.

However, to give a ballpark example, we’ve used an annual interest rate of 5%:

To obtain £2,000 per month you’d need to invest about £480,000.

Keeping in mind the current ISA allowance is £20,000 per year for contributions, to achieve this you would need to hold some of your income assets outside of an ISA where they’d be subject to tax.

Important Risk Information:

Capital at risk. Tax treatments depend on your individual circumstances and may change. The value of investments can go down in value as well as up, so you could get back less than you invest. It is therefore important that you understand the risks and commitments. This website aims to provide information to help you make your own informed decisions. It does not provide personal advice based on your circumstances. If you are unsure of how suitable an investment is for you, please seek personal advice.