CMC Invest Cash ISA Expert Review & Rating

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 Expert Review & Rating: Updated 07/09/2026
Good Money Guide Recommended Provider 2026

Account: CMC Invest Cash ISA

Description: 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.

Pros

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

Cons

  • App-only product
  • Bonus limited to 90 days
  • Rates
    (5)
  • Flexibility
    (5)
  • App & Platform
    (5)
  • Customer Service
    (5)
  • Research & Analysis
    (5)
Overall
5

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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