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Cynergy Bank: Cash ISA reviews

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
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Latest highest rating:

5

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

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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R M

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)

Cynergy review

5
Clear website. Decent rates. More content is unessaessary Reviewed on: 26th March 2026

Easy to deal with online and good rates

5
Easy to deal with online and good rates Reviewed on: 26th March 2026

Online banking with Cynergy is very easy to navigate

5
Online banking with Cynergy is very easy to navigate Reviewed on: 26th March 2026

Very good rates especially for their loyal customers

5
Very good rates especially for their loyal customers Reviewed on: 26th March 2026

Friendly and Efficient..

5
Very friendly and efficient bank. Reviewed on: 26th March 2026

Always easy to access my accounts online

5
Always easy to access my accounts online Reviewed on: 26th March 2026

I like the way that Cynergy has modernised it's system.

4
I like the way that Cynergy has modernised it's system over time to keep up to date with modern technology, and to make things more secure. Reviewed on: 26th March 2026

Quick, easy to follow instructions.

5
Quick, easy to follow instructions. Reviewed on: 26th March 2026

Good interest rates, with a perk for account holders.

5
Good interest rates, with a perk for account holders. Easy to apply online, with prompt confirmation. Reviewed on: 25th March 2026

Happy to invest with Cynergy Bank

4
Happy to invest with Cynergy Bank who deliver a no-nonsence approach to investing with straight-forward and easy to understand investment opportunities. Also have helpful advisors available on hand to sort out any queries a saver may have. Reviewed on: 25th March 2026

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