Flexible stocks and 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.

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.

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.

Yes, and you can also transfer a cash ISA and an 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.

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.

Our flexible stocks & shares ISA allows customers to withdraw uninvested cash from their account and redeposit it 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 To reflect this in the account for those who may have withdrawn more than they have funded in the current tax year, with contributions made in the previous tax year, we will show the difference as a negative amount.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 25/26, and for tax year 26/27, 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.

Yes, CMC Markets Investments Limited (registration number 948126) is fully authorised and regulated by the Financial Conduct Authority (FCA) in the UK. Retail client money is held in segregated client bank accounts, and money held on behalf of clients is distributed across a range of major banks, which are regularly assessed against our risk criteria.

Yes, your eligible deposits with CMC Markets are protected up to a total of £120,000 by the Financial Services Compensations Scheme (FSCS), the UK's deposit guarantee scheme. If CMC Invest ever went into liquidation, retail clients would have their share of segregated money returned, minus the administrator's costs in handling and distributing these funds. Any shortfall of funds up to £120,000 may be compensated under the FSCS.

Under the FCA's client money rules, we're required to segregate client money from our own funds (unless you agree with us otherwise). The money held in segregated bank accounts does not belong to us and will be held in a way that enables it to be identified as client money. Learn more about client money regulations.

In the UK, you won’t need to pay capital gain tax (CGT) on any profits you make from selling investments, and dividend tax on income you receive from companies in your stocks & shares ISA and self-invested personal pension (SIPP). Any profits and dividend income to your general investment account is taxable and will be shown in your ‘Consolidated Tax Certificate’, provided to you following the end of each tax year. Tax treatment depends on your individual circumstances and may be subject to change in the future.

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