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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)

They keep to their promise.

They keep to their promise. Easy to set up. Competitive interest rates. Reviewed on: 23rd March 2026

Cynergy's help with transferring ISA

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

Consistently good rates and excellent customer service

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

First Try Cynergy Bank

Always check rates and services With Cynergy Bank before others Reviewed on: 23rd March 2026

An Easy to use Website & App.

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

Great app.

Great app. All the info about your account is easily available. Reviewed on: 23rd March 2026

Easy to deal with

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

Good communication

Good communication - clear language. Always give you good notice regarding changes and when your a/c rate is coming to an end. Reviewed on: 23rd March 2026

Grest bank to bank with!

Very friendly and efficient staff, dealt with my queries on the phone quickly and efficiently. Reviewed on: 23rd March 2026

My attempts to organise online access have been bad

My attempts to organise online access have been uniformly unsuccessful Reviewed on: 23rd March 2026

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