Can I contribute to an ISA for someone else? 11 December 2023 19:03 Updated A flexible ISA means that you have the freedom to withdraw your money and add it back without losing your annual allowance. Related to Investments Related articles What's in my investment portfolio? What is a Bed and ISA? Is the Octopus Money Stocks & Shares ISA a flexible ISA? What is a Stocks & Shares ISA?