So many advisers have slagged off the newly-released income-splitting legislation that even chief taxman Dave Hartnett would struggle to find someone happy with the new rules. Don't forget he berated Accountancy Age for not knowing that loads of advisers approved of HM Revenue & Customs' battle against Arctic Systems, apparently.

But beyond that cheap shot at Dave (who's busy enough as it is encrypting data discs), TS has been told on several occasions that the Treasury's examples used within the legislation contain simple tax miscalculations. For the example in box 1.1, Baker Tilly's George Bull was concerned they had failed to consider corporation tax for 'Nina and Joe's' imaginary business - which would have kept £9,000 from the Treasury's coffers and which he described as one of a number of 'serious and misleading errors' in the document.

TS is sure the Jones's of Arctic Systems fame would be pleased with this particular calculation.