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Cynergy Bank: Cash ISA reviews

Name: Cash ISA
Rating: 4.77 (317 reviews)

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4.77

Based on 317 reviews, last reviewed 10th May 2026

29100% increase in 5 star reviews

in the past 90 days

700% increase in 1 star reviews

in the past 90 days

92%

Latest highest rating:

5

I’ve always had a good experience when I phone. Staff are always helpful and knowledgeable and the phones are answered quickly Reviewed on: 10th May 2026

Latest lowest rating:

1

Don't use this Company Happy to take your money. Getting it back is proving difficult and costly. Reviewed on: 20th April 2026

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About this product

Cynergy Bank have a range of cash ISAs.

You can choose from fixed rate cash ISAs or easy access cash ISAs. Cynergy Bank cash ISAs can be opened with a minimum of £500. You can open and manage a Cynergy Bank cash ISA online.

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

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Cynergy Bank Cash ISA reviews (317)

Easy to set up ISA at competitive rate

Easy to set up ISA at competitive rate Reviewed on: 17th April 2026

Transferring ISA's

We smoothly transfer transferred our existing ISA's. Reviewed on: 17th April 2026

Very problematic to login.

Very problematic to login. App difficult to use and usually end up phoning and waiting a long time to speak to someone to access my account. Decided to close account and move elsewhere. Reviewed on: 17th April 2026

They keep me updated regarding new and revised rates

They keep me updated regarding new and revised rates Reviewed on: 17th April 2026

Quick, efficient and no nonsense

Quick, efficient and no nonsense Reviewed on: 17th April 2026

All round user friendly banking app; excellent commu...

All round user friendly banking app; excellent communications and service. Reviewed on: 17th April 2026

Easy service to use.

Easy service to use. Helpful if customers need more information Reviewed on: 17th April 2026

All works seamlessly, and without issues

All works seamlessly, and without issues Reviewed on: 17th April 2026

Good cash ISA rate

Opened a cash ISA and received straightforward service Reviewed on: 17th April 2026

Opened a cash ISA on line with relative ease.

Opened a cash ISA on line with relative ease. Interest rate was the best at the time and recommended by Martin Lewis ( MSE ). I was kept informed of the progress of my ISA on a regular basis, I have no complaints whatsoever, thank you. Reviewed on: 17th April 2026

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