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Cynergy Bank: Cash ISA reviews

View other Cynergy Bank products
4.85
Based on 302 reviews, last reviewed 19th Apr 2026
27900% increase in 5 star reviews
in the past 90 days
600% increase in 1 star reviews
in the past 90 days
See only 5 star reviews
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Latest highest rating:

5

Easy to navigate site. Friendly , helpful staff. Easy to navigate online banking. Keeps me updated about offers. Reviewed on: 19th April 2026
SGS's avatar
SGS

Latest lowest rating:

1

Cynergy Bank complaint team has been very difficult... Cynergy Bank complaint team has been very difficult to get through to as they do not have an option to speak to them and have never listened to my iss... Read more Reviewed on: 18th April 2026
Kieran G's avatar
Kieran G
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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 (302)

Straight forward , good information, good value inve...

5
Straight forward , good information, good value investment - best on market at the time Reviewed on: 23rd March 2026
Keith C's avatar
Keith C

Geat rates on all their accounts

5
Rates are always good on all the accounts and if you have any queries, the customer service staff are great - so helpful! Reviewed on: 23rd March 2026
Frances S's avatar
Frances S

Unbeatable

5
Always very helpful and offer the best interest rates Reviewed on: 23rd March 2026
Vian Roberts's avatar
Vian Roberts

They keep to their promise.

5
They keep to their promise. Easy to set up. Competitive interest rates. Reviewed on: 23rd March 2026
Mary Allen 's avatar
Mary Allen

Cynergy's help with transferring ISA

5
Applied online to transfer an existing maturing ISA from one provider to Cynergy bank in November 2025. The existing provider took forever to do the transfer, even though everything was correct. Cynergy were very helpful and patient and the transfer eventually took place in December 2025. Reviewed on: 23rd March 2026
D G's avatar
D G

Consistently good rates and excellent customer service

5
I've had an ISA with Cynergy for some years.-customer service are 2nd to none-always excellent at sorting out my problems yet polite & friendly too. Interest rates are pretty competitive too Reviewed on: 23rd March 2026
C F Hill's avatar
C F Hill

First Try Cynergy Bank

5
Always check rates and services With Cynergy Bank before others Reviewed on: 23rd March 2026
CHRISTOPHER M GIBBS's avatar
CHRISTOPHER M GIBBS

An Easy to use Website & App.

5
An easy to use Website & App. An excellent range of very competitrive products along with excellent s=custoer service. Reviewed on: 23rd March 2026
Richard B's avatar
Richard B

Great app.

5
Great app. All the info about your account is easily available. Reviewed on: 23rd March 2026
Carol 's avatar
Carol

Easy to deal with

5
Easy to deal with, swift and not kept waiting for a response. Answering the phone instantly and knowledgablestaff. Reviewed on: 23rd March 2026
Meena B's avatar
Meena B

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