Under Cash ISAs you can invest in high interest accounts usually with a Bank, Building Society or National Savings. Under Stock & Share ISAs you can invest in stock market holdings such as shares in companies, investment trust shares, Fixed Interest Securities and Gilts, usually through unitised funds such as OEICs or Unit Trusts.
N.B. You can use cash as part of your Stock & Share ISA in particular to avoid losing your allowance.
Accessing money from your ISA account is easy and can be done at any time. You may cash in all or part of your holdings, or individual funds. Once you have withdrawn an amount or if you close your ISA, this money will lose its tax-free status and you will not be able to put it back into the ISA during that same tax year.
This type of account was created for individuals investing the capital from a matured TESSA. They are entirely separate from the normal ISA allowance but you can only put money that had been invested in TESSAs into them. These accounts have now become simply Cash ISAs.