CMC Invest Cash ISA Customer Reviews & Expert Rating

The overall score out of 10 combines our expert rating out of 5 with the average customer rating out of 5.
9.2/10Excellent

Based on 237 customer reviews and our expert analysis

  • Experts rate the CMC Invest Cash ISA highly, noting its excellent 3.69% AER with tax-free interest, unlimited withdrawals, and no fees, making it a strong option for savers. The account is integrated within CMC’s broader investing platform, which is praised for its user-friendly app and robust customer service, although it is exclusively app-based and has a limited bonus period.
  • Across 237 user reviews on Good Money Guide, averaging 4.2/5, customers frequently commend the platform's ease of use, efficient customer service, and competitive spreads. Many users highlight the reliability and speed of trade execution, while some suggest improvements for the mobile app's user interface.

CMC Invest Cash ISA Expert rating

Our expert rating is the average of the areas listed here, each scored out of 5 by our team.
5.0Excellent

Our experts have rated CMC Invest Cash ISA across five key areas of our review framework.

  • Rates5.0
  • Flexibility5.0
  • App & Platform5.0
  • Customer Service5.0
  • Research & Analysis5.0

Pros

  • Also has an investment ISA
  • Established provider
  • Excellent rates and nous

Cons

  • App-only product
  • Bonus limited to 90 days
See full expert review

Our verdict

CMC Invest’s flexible Cash ISA pays 3.69% AER (variable) with tax-free interest calculated daily and paid monthly, offering unlimited withdrawals without reducing the rate and a £1 minimum deposit to get started.

Is the CMC Invest Cash ISA any good?

Yes, we rate CMC Invest's 3.69% Flexible Cash ISA as excellent as it comes with unlimited withdrawals and no fees.

Customers can easily transfer existing ISAs in-app, benefit from FCA regulation and protection of client money, and access the account within CMC’s wider investing platform, which serves over 1.5 million global users. The ISA is fee-free to hold (with an optional £15 urgent withdrawal fee) and sits alongside CMC Invest’s subscription plans that add investing features, lower FX fees and broader market access for those using the wider platform.

Customer reviews for CMC Markets

Customer ratings come from reviews left on this site. Every review is read and approved before it is published.
4.2Very good

Based on 237 reviews

  • Excellent52%
  • Very good22%
  • Basic18%
  • Poor6%
  • Bad2%
Read customer reviews

Best

s ullah ·

Best charting platform

Best service

Excellent

Russell Thomas ·

Excellent interface of charts and prices and accounts on mobile phone app. Spreads are also very good

Authentic

Jason Simpson ·

Reliable, trustworthy, & honest.

seems trustful

Daniel Marcelino ·

i think a better user friendly mobile app well overdue

Seamless

Stu Sharpe ·

fast execution, small spreads on major pairs, integrated for trading view.

Supportive

John Wilkinson ·

Clear and informative, with good history recall.

Very good trade execution

Arvind Vashisht ·

Charting studies & speed of trade execution.

Extremely helpful.

Raghbir Aujla ·

Charts are good. Easy to use platform. They leave you alone to get on with trading. They never push into putting in more more or stake higher.

Reliable

Raymond Akuaku ·

Execution

Consistent

Rob Grant ·

Easy to understand platform and good charting.

Excellent

SIMEON NWAOKO ·

Reliable, when the market moves, yours move

Brilliant platform.

Anthony Mustard ·

Good, clear notifications via email re; my account. A very slick & user friendly trading platform. On the odd occasion when having to contact Customer Support, friendly staff & queries/problems resolved very quickly. Would highly recommend.

Great platform

shaun kenehan ·

Very intuitive platform, works very well.

Reliable

Stuart Brown ·

Always there, always fair.

Innovative

Alan Simpson ·

Provides interest on uninvested cash and free access to Bloomberg

Reliable

Peter Zimmermann ·

Narrow FX spreads

Proficient

Lana Sharp ·

CMC provides an easy to use platform with good charts and indicators. No hidden fees and good response time when trading. I use them for spread betting, their demo account allows you to practice until you get comfortable.

Professional

John Bourke ·

Top customer service

Best

Romeo Bedana ·

Manage very well regarding tradez

Professional

Tim Penhale ·

Good spreads fast operations.

CMC Invest continues to offer one of the best paying Cash ISA’s with a easy-access account paying 3.69% AER (variable), as investing platforms continue to compete for savers ahead of ISA season. The flexible ISA offers unlimited withdrawals, a £1 minimum deposit and no account fees, while integrating savings into CMC’s wider investing app used by more than 1.5 million customers globally.

CMC Invest Cash ISA Alternatives

You can get much better returns if you choose a stocks and shares ISA where your money is invested in the stock market.

Find the perfect stocks and shares ISA for you. Our investment ISA comparison table lets you quickly compare account fees, and show ratings from 1000s of customers.

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