Write a review

Newsletter

Go to business site

Tandem: Cash ISA reviews

Name: Cash ISA
Rating: 4.72 (70 reviews)

View other Tandem products

4.72

Based on 70 reviews, last reviewed 12th Jun 2026

511% 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

Excellent cash isa rates. Excellent cash isa rates. Quick and easy to open an account Reviewed on: 12th June 2026

Latest lowest rating:

N/A

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

Read all reviews Write a review

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.

Review Tandem: Cash ISA now

Help others make smarter decisions by sharing your own experience.

Write a review

Tandem Cash ISA reviews (70)

Excellent service

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

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

Do you have a different Tandem product?

Share your experiences with products to help others make smarter financial decisions and learn more about different products available. Write a review

Alternative products

Cash ISA
from Santander 4.36 from 84 reviews
Cash ISA
from Barclays 3.99 from 86 reviews
Junior ISA
from Scottish Friendly 3.84 from 1 reviews

Want to see more from Tandem?

Savings accounts
from Tandem 4.72 from 211 reviews
Credit card (discontinued)
from Tandem 4.65 from 358 reviews
Loans
from Tandem 4.33 from 8 reviews

View all products

Join Smart Money People

Keep up to date on ratings of your favourite businesses. Find out about our awards and write new reviews with ease

Create an account

News, guides and insight from our team

View resource hub