tax return on line

[childminder54]

Im mad with myself did my tax returns on line forgot to add my samsung notpad I brought in oct 2010. how stupid am I, As ive got a tax bill to pay.

[MrAnchovy]

You can go back in, change whatever you need to change (i.e. put the cost less any private use proportion in Annual Investment Allowance) and resubmit the return, it will change the amount you own straight away.

You have until 31 January 2013 to change it, but obviously if you don't change it before 31 January 2012 you will still have to pay the higher amount and wait for a refund when you do claim, so best to do it now.