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Best Cash ISAs

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5.00

Based on 9 reviews

A product by United Trust Bank

United Trust Bank offer a range of cash ISAs. Accounts have fixed interest rates from one year to seven years. You can apply for and manage a United Trust cash ISA...

5.00

Based on 6 reviews

A product by Monument

Monument’s Easy Access Cash ISA is flexible and lets clients replace any withdrawals without affecting their £20,000 tax-free allowance. The Cash ISA can be opened with balances from £10,000, or £1...

4.95

Based on 1453 reviews

A product by Zopa

The Zopa Smart ISA can be opened with as little as £1. Customers who already have a Smart Saver Account can apply for a Smart ISA via the Smart Savings Hub....

4.95

Based on 984 reviews

A product by Moneybox app

Moneybox have a Cash ISA that can be opened in minutes on the app. The Moneybox Cash ISA can be opened with a minimum of £500 and you can transfer in...

At Smart Money People we want to make it easy to compare your financial product options with our approach to rankings.

We use a combination of data from the reviews we receive to calculate our rankings. This includes the 1-5 star ratings given by reviewers, when the reviews were left on our site and other insightful data from the reviews.

It’s important to us that all our rankings are fair and consistent in the way they’re calculated. That’s why every financial product featured on our site is ranked in the same way using our own unique algorithm.

4.95

Based on 14 reviews

A product by iFAST Global Bank

What is this award?

The Best newcomer 2025 award is part of the British bank awards. Measured by consumer feedback that recognise businesses that are doing brilliant things for financial services customers.

This company has won:

  • Best newcomer 2025
See all awards iFAST Global Bank have won
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2025 Winner
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You can open an iFAST Flexible Cash ISA with just £1. You can manage your iFAST Flexible Cash ISA online or in app. You also have the freedom to withdraw and...

4.94

Based on 2631 reviews

A product by Triodos Bank

Triodos offer ethical ISAs so your money can have a positive impact on people and the planet. The Triodos Online Cash ISA can be opened with £10. The Triodos Fixed Rate...

4.94

Based on 1442 reviews

A product by Trading 212

The Trading 212 cash ISA is completely free with no account fees. The Trading 212 cash ISA is flexible so you can withdraw funds whenever you want to. Your interest accumulates...

4.92

Based on 128 reviews

A product by Nottingham Building Society

Nottingham Building Society ISA reviews from our Smart Money People can help you to give you the inside track on what having an ISA with Nottingham Building Society is really...

4.86

Based on 7 reviews

A product by Chip

4.85

Based on 14 reviews

A product by Nottingham Building Society

Nottingham Building Society ISA reviews from our Smart Money People can help you to give you the inside track on what having an ISA with Nottingham Building Society is really...

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Frequently asked questions

What is a Cash ISA?

A Cash ISA (Individual Savings Account) is similar to a regular savings account, but you earn tax-free interest on your savings.

How many Cash ISAs can you have?

As long as you don't exceed the annual contribution limit, you can technically have as many Cash ISAs as you like. You can have Cash ISAs with different providers, although some will only let you have one Cash ISA with them.

How much can you put into a Cash ISA each year?

As of the 2025/26 tax year, the annual ISA allowance is £20,000. This is the maximum amount you can save in any ISAs you have, and this isn't restricted to just one ISA. You can save up to £20,000 in Cash ISAs, Stocks and Shares ISAs, and one Lifetime ISA in a single tax year.

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