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Tandem: Cash ISA reviews

Name: Cash ISA
Rating: 4.71 (69 reviews)

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4.71

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)

18 and with a lot of money

I got a lump some of money when i was 18 and I was looking for high interest isa and it took me a while but I heard tandem was a good bank especially for high interest so I looked more into it and it was the highest out of all the banks that I looked at and the customer service is impeccable Reviewed on: 27th March 2026

Highly recommend

Very good. App is very easy to navigate. Highly recommended. Reviewed on: 27th March 2026

Great app makes saving simple & straightforward.

Great app makes saving simple & straightforward. Secure . Easy & quick access to funds. Competitive rates with bonus Reviewed on: 27th March 2026

So easy banking it’s great

Set up one account which was painless and only asked relevant questions. To open additional accounts now is like sooo easy. Reviewed on: 27th March 2026

Good service from staff.

Good service from staff. Really impressed Reviewed on: 27th March 2026

Easy to register using mobile app and good instant c...

Easy to register using mobile app and good instant cash Isa. Reviewed on: 27th March 2026

Happy Customer

Been with Tandem for years now and although Im old and not text savy I have found the process very clear and easy to follow online. That's a pleasant change for me when dealing with technology! Reviewed on: 27th March 2026

Great app!

Great app! Easy and quick to use, a good rate of interest and always nice to get a top up! Reviewed on: 27th March 2026

So easy to use.

So easy to use, contact and great communications. Reviewed on: 27th March 2026

Excellent service and good savings rates

Excellent service and good savings rates Reviewed on: 27th March 2026

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