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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)

Delivered everything they promised

Delivered everything they promised Reviewed on: 25th March 2026

Seamless, very easy to open a ISA and continuous upd...

Seamless, very easy to open a ISA and continuous updates via email plus what I consider is a bonus, I get important back up letters. Reviewed on: 25th March 2026

Cash ISA-rewarding.

Opened a cash ISA 2 years ago efficiently at a very competitive rate. Later transferred an ISA with another provider with ease and again at a competitive rate. The banks process was straightforward, time efficient with a rewarding end I a good level of interest. Reviewed on: 25th March 2026

Always good interest rates.

Always good interest rates. Clear, concise and easy to use website. All options clearly set out. Cynergy seem to consistently out-perform other banks when it comes to financial returns on investments. Good communication channels too. I often move my savings about but Cynergy has been a constant financial companion. Reviewed on: 24th March 2026

Cynergy Bank

easy safe and secure to use the online banking and to send messages etc. competitive rates of interest Reviewed on: 24th March 2026

excellent customer service and high interest rates

have one of best rates and very easy to use web site Reviewed on: 24th March 2026

Great products with very competitive interest rates...

Great products with very competitive interest rates and great customer service. get through instantly on the phone. Easy to use website. Reviewed on: 24th March 2026

simple website to follow and great interest rates co...

simple website to follow and great interest rates compared with competitors Reviewed on: 24th March 2026

All the communication from Cynergy is clear and timely.

All the communication from Cynergy is clear and timely. A great experience Reviewed on: 24th March 2026

very good communication and easy on line

very good communication and easy on line Reviewed on: 24th March 2026

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