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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
R M's avatar
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)

Outstanding customer service

5
Opening my ISA account could not have easier, it was after reading lots of positive reviews that I decided to take the plunge, I downloaded the app, which is so easy to use and navigate, then it was all pretty straightforward, all communication was received quickly as was any questions I had, I would certainly recommend Cynergy Bank to everyone Reviewed on: 23rd March 2026

Opening a cash ISA was very easy, and the rates were...

5
Opening a cash ISA was very easy, and the rates were very competitive Reviewed on: 23rd March 2026

Easy bank to deal with and great accounts

5
Easy bank to deal with and great accounts Reviewed on: 23rd March 2026

My whole experience with Cynergy was flawless.

5
My whole experience with Cynergy was flawless. Reviewed on: 23rd March 2026

Hassle free with competitive rates.

5
Hassle free with competitive rates. Reviewed on: 23rd March 2026

ISA Products

5
good web site, good isa product options and excellent interest rates. Reviewed on: 23rd March 2026

Cast ISA

5
I opened a cash isa with a good interest rate & been very happy with the service. Reviewed on: 23rd March 2026

All ways very helpful and good rates.

5
All ways very helpful and good rates. Nice app too. Reviewed on: 23rd March 2026

Very pleasant Bank to deal with

5
I have been a customer of Cynergy bank for a number of years and have always found them to be professional , easy to communicate with very prompt service Reviewed on: 23rd March 2026

Excellent, easy to use App.

5
Excellent, easy to use App. The interest rates are very competitive. I have had accounts with Cynergy for a few years and they have provided me with an excellent service. Transferring between accounts and investng new money into the accounts is very simple within the App. Reviewed on: 23rd March 2026

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