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Cynergy Bank: Cash ISA reviews

Name: Cash ISA
Rating: 4.87 (159 reviews)

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4.87

Based on 159 reviews, last reviewed 26th Mar 2026

14700% increase in 5 star reviews

in the past 90 days

200% increase in 1 star reviews

in the past 90 days

93%

2 star

Latest highest rating:

5

Cynergy review Clear website. Decent rates. More content is unessaessary Reviewed on: 26th March 2026

Latest lowest rating:

1

terrible telephone customer service at ISA maturity. terrible telephone customer service at ISA maturity. apparent new online system that was not functional 11 days before maturity. no workaround. had ap... Read more Reviewed on: 23rd March 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 (159)

Such a great Bank.

Such a great Bank. They always inform you Off interest rates changing. I love the fact that I don’t have to go looking when the rates change. They do it for you. Nothing is kept undercover. And if they feel that you need to change they give you a suttle nudge. It is then up to you to choose. I have no hesitation to recommend this Bank to anyone. I have both ISA and savings accounts with them and both work really well. It is so easy to change from one interest rate to another. It happens in seconds with no problems, however many times you change. Reviewed on: 24th March 2026

Mine’s been a good experience with Cynergy Bank

It was very easy to open the cash ISA account online, and then manage it via Cynergy’s online banking website which is very straightforward to use and is quite ‘customer friendly.’ Reviewed on: 24th March 2026

Good information provided (over and above other isas)

I like the facility where interest earned to date is available. No problems with the app or opening and maintaining the account. Reviewed on: 23rd March 2026

Just good

Straightforward and easy to deal with Reviewed on: 23rd March 2026

Good about new ISAs...

Good but would appreciate information about new ISAs when they come out Reviewed on: 23rd March 2026

Great company offering competitive interest rates

Great company offering competitive interest rates Reviewed on: 23rd March 2026

Satisfied

Their Cash ISA is exactely what I needed Reviewed on: 23rd March 2026

Cynergy provides good rates for cash ISAs.

Cynergy provides good rates for cash ISAs. It’s easy to open an account online. If there are any issues, telephone support staff are very helpful. Reviewed on: 23rd March 2026

Great options and good interest on cashbisa

Great options and good interest on cashbisa Reviewed on: 23rd March 2026

Excellent service

Good product and good service simple process and efficient App Reviewed on: 23rd March 2026

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