HMRC Tax Investigations boosted by Tax Discovery case
January 9th, 2012
HMRC Tax Investigations officials are entitled to investigate a tax return after the usual one-year limit has passed if their discovery assessment letter meets one of two tests, according to a recent Court of Appeal ruling that reaffirms a long-established power for the taxman.
Derek Hankinson v HM Revenue & Customs focused on whether HMRC used a section section 29 of the Taxes Management Act 1970 correctly when it investigated the taxpayer’s Self Assessment return for the 1998-99 tax year – six years after it was filed.
In 2005 HMRC assessed Hankinson’s tax return for 1998-99 and concluded he owed £30m in income tax and capital gains tax for the year because he was still a resident in the UK for tax purposes, despite having moved to the Netherlands.
Hankinson lost appeals against HMRC’s assessment of his tax liabilities in the first-tier and upper-tier tribunals.
In the Court of Appeal Hankinson challenged HMRC’s use of section 29 that was used to investigate his tax return for 1998-99.
HMRC usually has one year after a Self Assessment tax return is delivered to challenge and investigate it.
Under section 29 of the Taxes Management Act 1970 (at the time of the case), however, HMRC can investigate tax returns after the one-year window by sending a discovery assessment letter if one of two conditions apply. Firstly, the full and accurate facts were not available to HMRC officers due to incomplete disclosure, negligence or fraudulent behaviour by the taxpayer or agents; secondly the HMRC officer completing an enquiry could not have reasonably been expected to have been aware of the loss of tax.
In a judgment published in December last year Lord Justice Lewison concluded that HMRC’s use of section 29 was valid.
