“I have amended your Self Assessment return to reflect my conclusion. It previously showed total tax due of£137,575.78 It now shows that the tax due for the year is£9,640.63 .”
“Prior to the enactment of theIncome Tax Management Act 1964 (the 1964 Act), the function of the tax commissioners was to make assessments and to hear appeals. It was well established during the period of that regime that they were not deciding a 'lis inter partes' and accordingly their decision in respect of one year's assessment could not create any form of res judicata or issue estoppel in respect of a later year's assessment (see IRC v Sneath[1932] 2 KB 362 , 17 TC 149; Caffoor and others (Trustees of the Abdul Gaffoor Trust) v Comr of Income Tax, Colombo[1961] AC 584 at 598–589 and Spencer Bower and Turner Res Judicata (2nd edn, 1969) pp 260–266). The 1964 Act removed from the commissioners the function of making assessments. I do not think that this changes the position that (for present purposes) their decision on an appeal is not a decision on a 'lis inter partes'. This view accords with that expressed in the text books (see eg Whiteman on Income Tax (3rd edn, 1988) para 30.02 and Phipson on Evidence (14th edn, 1990) para 33.48). Accordingly a determination of an appeal by the commissioners or a s 54 agreement cannot any more since 1964 than before 1964 afford scope for application of the doctrine of res judicata or issue estoppel in respect of assessments in succeeding years or additional assessments in the same year.”
“Whilst the Appellants have appealed against the 2005/06 assessments on a number of grounds, the question of whether they are settlors is the determining issue. If in hearing the 2002/03 appeals the First Tier Tribunal determines that the Appellants are not settlors then they are not assessable on Trust income and gains for 2005/06.”