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Tandem: Cash ISA reviews

Name: Cash ISA
Rating: 4.91 (69 reviews)

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4.91

Based on 69 reviews, last reviewed 16th Apr 2026

6300% increase in 5 star reviews

in the past 90 days

No new 1 star reviews

in the past 90 days

91%

3 star

2 star

1 star

Latest highest rating:

5

Tandem are great to deal with, interest rates are up... Tandem are great to deal with, interest rates are up with the best and the app is fantastic. Happy customer here! Reviewed on: 16th April 2026

Latest lowest rating:

N/A

This product has not received a review of either 1 or 2 stars.

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About this product

Tandem offer fixed rate cash ISAs and easy access cash ISAs.

Tandem cash ISAs can be opened online. If you withdraw money from a fixed rate cash ISA, you’ll pay a penalty. You get unlimited withdrawals and deposits with an easy access cash ISA.

Tandem cash ISA reviews help you find out what it’s really like to be a customer. If you’ve used Tandem before, you can also leave a review and share your experience.

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Tandem Cash ISA reviews (69)

Great app and good interest rates

The app is really easy to use and the rates offered have been very competitive. Setting up the account and transferring has been a smooth process. Reviewed on: 24th March 2026

5* ISA!!

Great flexible ISA, I love being able to separate out my accounts in one big ISA portfolio to keep track of all my goals (and tax-free!) Reviewed on: 24th March 2026

Great ISA Experience

My experience of opening and transferring an ISA was fantastic, I opened an account and filled in my details to bring across my existing ISAs, the instructions were really clear and easy to follow. My money arrived within 2 days. The app was easy to use and I really like the design. So far I'm really happy with Tandem! Reviewed on: 24th March 2026

Super easy ISAs

Really straight forward account opening process, clear and easy to understand. The Cash ISA has great features and an excellent interest rate. Transferring in my existing ISA took a couple of minutes of my time and landed within a couple of days. Love being able to open multiple accounts and rename them, have got a mix of fixed rate ISAs and instant access ISAs aligned to my savings goals Reviewed on: 24th March 2026

Solid Product

Solid product the result of a lot of hardwork Reviewed on: 18th March 2026

Putting the customer first

Very easy to use and contact tandem if you have any problems and they have always tried and helped as best they can putting the customer first Reviewed on: 18th March 2026

Excellent savings app.

Excellent savings app. Easy to use and very much in line with my expectations Reviewed on: 18th March 2026

Very easy to onboard, great rate

Very easy to onboard, great rate Reviewed on: 18th March 2026

Great service from tandem.

Great service from tandem. Their customer services teams are fantastic Reviewed on: 18th March 2026

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