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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)

Easy and simple to navigate equals Customer friendly

So Easy to use and the rate was better than some others. I have had no need to contact the bank for help so in my mind that's an excellent reference Reviewed on: 28th March 2026

It is quite easy to use with clear instructions to f...

It is quite easy to use with clear instructions to follow the account in the mobile app. Reviewed on: 28th March 2026

its been ok.

its been ok. at the time it was the best out there Reviewed on: 28th March 2026

Nice experience, keep customer updated.

Nice experience, keep customer updated. Reviewed on: 28th March 2026

Convoluted ISA Switch

Attempted to switch a digital bank ISA to Tandem, no manual process for non-BACS ISA, so had to switch it to a high street bank and then switch to Tandem! Reviewed on: 28th March 2026

Good isa with a good interest rate.

Good isa with a good interest rate. Easy to add and withdraw money Reviewed on: 27th March 2026

Super easy especially if you already are a Tandem ac...

Super easy especially if you already are a Tandem account holder Reviewed on: 27th March 2026

Great app. Easy ISA Transfer.

Great app. Simple to use. Easy ISA transfer feature. Reviewed on: 27th March 2026

Competitive interest rates , Very good service

Competitive interest rates , Very good service Reviewed on: 27th March 2026

Excellent service

Easy to navigate, very good cash ISA rates than others, excellent service Reviewed on: 27th March 2026

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