Write a review

Go to business site

Cynergy Bank: Cash ISA reviews

Name: Cash ISA
Rating: 4.85 (300 reviews)

View other Cynergy Bank products

4.85

Based on 300 reviews, last reviewed 19th Apr 2026

27700% increase in 5 star reviews

in the past 90 days

600% increase in 1 star reviews

in the past 90 days

92%

Latest highest rating:

5

Good value and nice people. Good value. Kept informed about maturity dates and options. Helpfully accessible by telephone, but online less easy if you don't have access to the ... Read more Reviewed on: 19th April 2026

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

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 (300)

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

Easy to use, updates on rate changes, good app

Easy to use, updates on rate changes, good app Reviewed on: 23rd March 2026

Interest rates have been pretty good but have recent...

Interest rates have been pretty good but have recently gone down. I like the account because I can use it online and not app only. Reviewed on: 23rd March 2026

Quick and easy to set-up and transfer from existing...

Quick and easy to set-up and transfer from existing with good rates. Reviewed on: 23rd March 2026

Excellent service and interest rates

I have saved with Cynergy for many years and have always had excellent service and good rates. I will continue to bank with them, hopefully for many more years to come. Reviewed on: 23rd March 2026

A great bank.

If you need help you can get through to a human and they are so helpful . You don’t have to wait ages for them to answer. The interest rates offered are always good. Reviewed on: 23rd March 2026

Initially problems.

Initially problems setting up one of the two accounts despite doing both on line one after the other. Called c/s but "help" wasn't fully satisfactory. Overly complicated setting up of security settings and use of their words ie pass code, password etc didn't help. Eventually sorted. Other banks have additional security but easier to set up. Reviewed on: 23rd March 2026

Simple an easy to use ISA that meets my needs

Cynergy bank account is easy to use and any withdrawals are actioned in minutes with now issues. Both the online banking and app are very simple and easy to use, information and help facilities are readily available. Personally I have not found any problems. Reviewed on: 23rd March 2026

Been a client since its inception.

Been a client since its inception. Always found Cynergy to be reliable and quick to respond to emails & phone calls . Communication and notifications are good . User friendly app and website. All in all I’m a very happy customer . 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 Nottingham Building Society 0.00 from 0 reviews
Junior ISA
from J.P. Morgan Personal Investing (formerly Nutmeg) 4.86 from 28 reviews
Junior ISA
from Tesco Bank 0.00 from 0 reviews

Want to see more from Cynergy Bank?

Business Saving
from Cynergy Bank 4.87 from 33 reviews
Personal savings
from Cynergy Bank 4.80 from 211 reviews
Business Current Account
from Cynergy Bank 4.58 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