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Cynergy Bank: Cash ISA reviews

Name: Cash ISA
Rating: 4.87 (164 reviews)

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4.87

Based on 164 reviews, last reviewed 14th Apr 2026

15100% 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

Competitive Products I found they offer very competitive products and customer services staff are very helpful. Reviewed on: 14th April 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 (164)

Competitive Products

I found they offer very competitive products and customer services staff are very helpful. Reviewed on: 14th April 2026

The main plus is a loyalty bonus on top of the compe...

The main plus is a loyalty bonus on top of the competitive ISA rate that they already offer on the open market after the first year. Reviewed on: 30th March 2026

Cynergy bank cash ISA

Looking for a high interest on a cash ISA in February 2026 I found that Cynergy Bank could offer me in the long term a high fixed interest rate and although other banks were giving a higher interest they were variable and the economy was to unstable for these high interests to stay high for any great length time. The change over from my existing ISA to Cynergy’s ISA was vey straight forward and was complete in less than an hour including conformation from the bank that all was in order and the process would be confirmed by the end of the day. There customer service online are always keeping me up to date Reviewed on: 29th March 2026

Great to bank with!

Very easy to navigate the online site, from simplified logon to detailed listings of transactions. Customer service is always helpful and efficient and email notifications directing us to look at their various interest rates are useful. Reviewed on: 29th March 2026

All good

Easy to operate online and great customer services Reviewed on: 29th March 2026

Cynergy review

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

Easy to deal with online and good rates

Easy to deal with online and good rates Reviewed on: 26th March 2026

Online banking with Cynergy is very easy to navigate

Online banking with Cynergy is very easy to navigate Reviewed on: 26th March 2026

Very good rates especially for their loyal customers

Very good rates especially for their loyal customers Reviewed on: 26th March 2026

Friendly and Efficient..

Very friendly and efficient bank. Reviewed on: 26th March 2026

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