If you'd like to move money from one account to another, you'll see two different figures when selecting an account to move money from.
Your 'current value' represents your account balance, and so is inclusive of any interest accrued up to yesterday.
'Available to move' is the money in your balance that is cleared and can currently be moved to a different account. This figure does not include any in-progress activity such as deposits or withdrawals, so may be lower than your 'current value', however, it will include any interest that will be earned by the time any move money transaction completes.
As only cash can be moved from Stocks & Shares ISAs and General Investment Accounts, your ‘available to move’ figure will be the value of the Available Cash in your account.