Hoping someone can help please? I am going through the answer to this part of the question referred to above and I am a bit unclear as to why there would be a deduction to the 13/14 tax liability of £14,622 by the 12/13 tax liability of £9,084, leaving £5,538 due at 31 Jan 2015. Just not sure why it is reducing the 13/14 tax liability if they are both due as per their respective tax years. The answer leads me to believe the £14,622 amount is the cumulative balance. Is this correct?