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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

9500% 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)

Interest rates have been pretty good but have recent...

Interest rates have been pretty good but have recently gone down. I like the account because I can use it online and not app only. Reviewed on: 23rd March 2026

Quick and easy to set-up and transfer from existing...

Quick and easy to set-up and transfer from existing with good rates. Reviewed on: 23rd March 2026

Excellent service and interest rates

I have saved with Cynergy for many years and have always had excellent service and good rates. I will continue to bank with them, hopefully for many more years to come. Reviewed on: 23rd March 2026

A great bank.

If you need help you can get through to a human and they are so helpful . You don’t have to wait ages for them to answer. The interest rates offered are always good. Reviewed on: 23rd March 2026

Initially problems.

Initially problems setting up one of the two accounts despite doing both on line one after the other. Called c/s but "help" wasn't fully satisfactory. Overly complicated setting up of security settings and use of their words ie pass code, password etc didn't help. Eventually sorted. Other banks have additional security but easier to set up. Reviewed on: 23rd March 2026

Simple an easy to use ISA that meets my needs

Cynergy bank account is easy to use and any withdrawals are actioned in minutes with now issues. Both the online banking and app are very simple and easy to use, information and help facilities are readily available. Personally I have not found any problems. Reviewed on: 23rd March 2026

Been a client since its inception.

Been a client since its inception. Always found Cynergy to be reliable and quick to respond to emails & phone calls . Communication and notifications are good . User friendly app and website. All in all I’m a very happy customer . Reviewed on: 23rd March 2026

Very good resolution of a difficulty which developed.

Very good resolution of a difficulty which developed. Reliable service with various savings accounts over several years. Reviewed on: 23rd March 2026

Professional and knowledgeable

Very easy to set up accounts. Helpful and knowledgeable staff when contacted about a query. Reviewed on: 23rd March 2026

I’ve had a very good experience with CynergyBank.

I’ve had a very good experience with CynergyBank. I just feel maybe it could be a little clearer to do things on online banking.. Reviewed on: 23rd March 2026

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