Write a review

Newsletter

Go to business site

Cynergy Bank: Cash ISA reviews

Name: Cash ISA
Rating: 4.77 (318 reviews)

View other Cynergy Bank products

4.77

Based on 318 reviews, last reviewed 13th Jul 2026

5% decrease in 5 star reviews

in the past 90 days

150% increase in 1 star reviews

in the past 90 days

92%

Latest highest rating:

5

Competitive rates and helpful website Competitive rates and helpful website Reviewed on: 13th July 2026

Latest lowest rating:

1

Don't use this Company Happy to take your money. Getting it back is proving difficult and costly. Reviewed on: 20th April 2026

Read all reviews Write a review

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.

Review Cynergy Bank: Cash ISA now

Help others make smarter decisions by sharing your own experience.

Write a review

Cynergy Bank Cash ISA reviews (318)

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

Always pretty much up there with best interest rates...

Always pretty much up there with best interest rates and let you know when they have another account that could provide a better return Reviewed on: 23rd March 2026

Do you have a different Cynergy Bank product?

Share your experiences with products to help others make smarter financial decisions and learn more about different products available. Write a review

Alternative products

Lifetime ISA
from Unity Mutual 0.00 from 0 reviews
Cash ISA
from HSBC 4.15 from 21 reviews
Instant Access Cash ISA
from Metro Bank 4.71 from 153 reviews

Want to see more from Cynergy Bank?

Personal savings
from Cynergy Bank 4.71 from 218 reviews
Business Saving
from Cynergy Bank 4.63 from 35 reviews
Business Current Account
from Cynergy Bank 4.33 from 15 reviews

View all products

Join Smart Money People

Keep up to date on ratings of your favourite businesses. Find out about our awards and write new reviews with ease

Create an account

News, guides and insight from our team

View resource hub