Hi,
Interest income from ISA's shoud not included in the income figure you have stated as that is non taxable(
Individual Savings Accounts (ISAs)), so you would not include this in any calculations when working out if you can transfer any personal allowance .
Interest from bank & building society accounts is taxable income and this is where we have mentioned the up to 6000 in tax free savings interest please see -
Tax on savings interest
As although bank interest is taxabe income depening on your level of income it may be below the level ifor tax to be due.
Thank you.