Flexible Stocks and Shares ISA
With our Plus plan, you can invest towards your future with our tax-efficient, flat-fee, Flexible Stocks & Shares ISA. You’ll also get access to all the features that come with our Core plan, plus USD and EUR wallets within your GIA, 1,000+ Mutual Funds, Mid and Small-cap UK shares, AIM shares, and company fundamental analysis.
When you invest, your capital is at risk. Tax treatment depends on your individual circumstances and may change in future.



Why invest with us?
Flat-rate fees
With our flat-rate platform fees, you’ll know exactly how much you’re paying each month. See our price plans for more information.
Flexible ISA
Our Flexible Stocks & Shares ISA allows you to access your money within the same tax year without affecting your remaining annual allowance.
£0 commission
Have more cash to put towards your investments by saving money on commission on every trade. Other charges may apply.
In-app ISA transfers
Our quick and easy in-app transfer form allows you to start your ISA transfer to us in as little as 30 seconds. Learn more about our transfer process.
Variety of investments
Invest in 3,000+ US shares, Large, Mid and Small-cap UK shares, AIM shares, 400+ ETFs and Investment Trusts, and 1,000+ Mutual Funds. See our platform fee structure for more information.
Earn 2% Interest
You will earn 2% gross interest (2.02% AER) on your uninvested, settled cash within your Flexible Stocks & Shares ISA. Read more about our 2% cash interest here.
Do you have questions about our Flexible Stocks & Shares ISA? Check out our FAQs
Tax treatment will depend on your individual circumstances and could potentially change in the future.
What could your ISA be worth?
Our Stocks & Shares ISA calculator helps you see how much your ISA could grow over time through regular contributions. To see your investing potential, just change the amounts in the boxes and adjust the scales to suit your plans.
How much do you want to invest?
You can pay in both a single payment and regular monthly payments.
Get started by giving us some details
Further description if required
Investing value
£0.00
Saving value
£0.00
Contributed
£0.00
Differential value
£0.00
Please remember when you invest, your capital is at risk. The value of your investment portfolio can go down, as well as up, and the projection is not a guarantee for future performance. Therefore, you may get back less than what you put in.
This information should not be used as personal or financial advice, please speak with a financial advisor if you're unsure if an ISA is right for you.
*Source: Bank of England Rates - Last updated 05-09-2024
Smarter investing starts here
Access a range of research tools powered by TipRanks and Morningstar, to help you make confident, data-driven decisions.





Analyst ratings
- Access insights from over 96,000 financial experts on whether they think a share should be bought, sold, or held.
Price targets
- Track where experts think the price is heading. Use 12-month price targets and performance metrics to guide more informed decision-making.
Bulls say, Bears say
- Get both sides of the story to help you make balanced decisions, so you can determine whether a company is the right investment for you.
ESG ratings & preferences
- Pick investments that align with your core values. You can also predefine your ESG preferences and be alerted when an asset does or doesn't match these options.
Company fundamental analysis
- See detailed information about a company which includes valuation ratios, market capitalisation, growth ratios, cash flow and income.
ISA guidance
We're with you on your financial journey, visit the learn hub to find out more about investing.
Straightforward and transparent price plans
Browse and choose from one of our plans that suits what you need. No hidden fees, no nasty surprises, just straightforward and transparent pricing. FX fees and UK government charges may apply.
Core
Plus
Premium
Core plan
£0/month
Accounts
- Flexible Cash ISA
- General Investment Account
- Flexible Stocks & Shares ISA
- Self-invested Personal Pension
Benefits
- £0 Commission
- 4,600+ global stocks & ETFs
- 2.02% AER interest on uninvested cash*
- 0.99% FX fee
- Limit orders
- Analyst ratings, price targets and Bull says, Bear says
- ESG ratings and preferences
Plus plan
£6.99/month
Accounts
- Flexible Cash ISA
- General Investment Account
- Flexible Stocks & Shares ISA
- Self-invested Personal Pension
Benefits
- Everything in Core
- 6,100+ global stocks & ETFs, including Mutual funds and AIM stocks
- 3.04% AER interest on uninvested cash*
- 0.50% FX fee
- USD & EUR currency wallets (GIA only)
Premium plan
£10.99/month
Accounts
- Flexible Cash ISA
- General Investment Account
- Flexible Stocks & Shares ISA
- Self-invested Personal Pension
Benefits
- Everything in Core and Plus
- 4.07% AER interest on uninvested cash*
- 0.39% FX fee
Free OPTO Foresight subscription
When you invest, your capital is at risk.
For the full list of platform benefits, compare our price plans.
*Variable. AER stands for Annual Equivalent Rate and shows you what the interest rate would be if interest was paid and compounded once a month.
Frequently asked questions
How do I fund my account?
You can fund your account using a credit or debit card or by transferring funds from your bank account. We do not accept cheque or cash deposits. Please ensure that any payment you make to fund your account is from a card or account in your name. Any payment from third-party sources will be returned.
What is a Flexible Stocks & Shares ISA?
A flexible stocks & shares ISA has all the same benefits as a regular stocks & shares ISA, where you can fund up to the annual allowance and use your cash and profits to invest in qualified investments. The added benefit of a flexible ISA is that you’re able to withdraw and redeposit the same amount into the same ISA within the same tax year, without affecting your remaining annual ISA allowance. You can’t withdraw from a classic stocks & shares ISA and redeposit the funds without using up additional allowance.
Why do I need a national insurance number to open a stocks & shares ISA?
Your national insurance (NI) number is the identifier used by HMRC to track the ISA allowance used by individual investors. We ask for your NI number to help us with our reporting to HMRC.
How many stocks & shares ISAs can I have?
You can pay into as many Stocks & Shares ISA, Cash ISA and Innovative Finance ISA as you want. However, you are responsible for not exceeding your annual ISA allowance limit.
How much money do I need to open an ISA?
The minimum amount you can deposit is £1. You can use your debit card to add funds, but you can’t deposit more than the annual limit for ISAs. To activate an ISA in the current tax year, you’ll need to fund a minimum of £1.
Can I transfer an existing stocks & shares ISA to CMC Invest?
Yes, and you can also transfer a cash ISA and innovative finance ISA. All you have to do is open an account, fill out our in-app transfer form, and we’ll work with your current provider to transfer your investments or cash on your behalf. However, we don't accept the partial transfer of your current year's ISA allowance. It must be the full transfer.
Can I withdraw money from my Stocks & Shares ISA?
Yes, you can withdraw cash from your CMC Invest flexible ISA account whenever you need it, then put it back again in the same tax year, without affecting your annual ISA allowance.
Why does my ISA allowance show as a negative amount when I withdraw?
Our flexible stocks & shares ISA allows customers to withdraw uninvested cash from their account and redeposit in the same tax year. To reflect this in the account for those who may have withdrawn more than they have funded in the current tax year, with contributions made in the previous tax year, we will show the difference as a negative amount.
For example, customer A contributed £15,000 to their flexible ISA in the tax year 22/23, and for tax year 23/24 they have yet to fund towards their £20,000 annual allowance. Instead, they have decided to withdraw £5,000 from their account. This will be displayed in the account as a £25,000 annual allowance left and a -£5,000 allowance used.
Do you offer junior ISAs or lifetime ISAs?
Currently, we only offer a flexible Cash ISA and a flexible Stocks & Shares ISA. If you’re interested in us adding other types of ISAs, please let us know using the ‘Send us your feedback’ banner on the home screen in the app.