As with all our accounts and portfolios, the minimum you must invest to open an ISA account is £100.
Your annual ISA allowance is £20,000 per current tax year. This allowance renews each tax year, so the maximum you can put into an ISA is £20,000 each tax year.
The UK financial tax year runs from 6th April to the 5th April of the following year.
With our GIA accounts, you can invest as much as you like, and there are no restrictions that follow the tax year.