“ 114 Cars, vans and related benefits (1)i This Chapter applies to a car ... in relation to a particular tax year if in that year the car ...— (a) is made available (without any transfer of the property in it) to an employee or a member of the employee's family or household, (b) is so made available by reason of the employment (see section 117), and (c) is available for the employee's or member's private use (see section 118). (2) Where this Chapter applies to a car ...-- (a) sections 120 to 148 provide for the cash equivalent of the benefit of the car to be treated as earnings, … (3) This Chapter does not apply if an amount constitutes earnings from the employment in respect of the benefit of the car ... by virtue of any other provision (see section 119).”
“ 229 Mileage allowance payments (1) No liability to income tax arises in respect of approved mileage allowance payments for a vehicle to which this Chapter applies (see section 235). (2) Mileage allowance payments are amounts … paid to an employee for expenses related to the employee's use of such a vehicle for business travel (see section 236(1)). (3) Mileage allowance payments are approved if, or to the extent that, for a tax year, the total amount of all such payments made to the employee for the kind of vehicle in question does not exceed the approved amount for such payments applicable to that kind of vehicle (see section 230). (4) Subsection (1) does not apply if-- … (b) the vehicle is a company vehicle (see section 236(2)).”
“A place which the employee regularly attends in the performance of the duties of the employment … [ so long as ] …— (a) it forms the base from which those duties are performed, or (b) the tasks to be carried out in the performance of those duties are allocated there.”
“(6) If, on an appeal notified to the tribunal, the tribunal decides— (a) that, ... the appellant is overcharged by a self-assessment; (b) ... ; or (c) that the appellant is overcharged by an assessment other than a self-assessment, the assessment … shall be reduced accordingly, but otherwise the assessment or statement shall stand good. (7) If, on an appeal notified to the tribunal, the tribunal decides (a) that the appellant is undercharged to tax by a self-assessment (b) ...; or (c) that the appellant is undercharged by an assessment other than a self-assessment, the assessment … shall be increased accordingly. … (8) Where, on an appeal notified to the tribunal against an assessment (other than a self-assessment) which— (a) assesses an amount which is chargeable to tax, and (b) charges tax on the amount assessed, the tribunal decides as mentioned in subsection (6) or (7) above, the tribunal may, unless the circumstances of the case otherwise require, reduce or, as the case may be, increase only the amount assessed; and where any appeal notified to the tribunal is so determined the tax charged by the assessment shall be taken to have been reduced or increased accordingly. ...”
“ If, on an appeal [against a conclusion or amendment to a self- assessment stated in a closure notice] notified to the tribunal, the tribunal decides— — (a) that ... the appellant is overcharged by a[n amended] self- assessment [so far as concerns matters appealed against];... the assessment... shall be reduced accordingly, but otherwise the assessment ...shall stand good.”
“33. … [In D’Arcy ] Dr John Avery Jones then went on to state at [13]: ‘ These provisions seem to me to indicate that the jurisdiction of appeal Commissioners is not merely to decide whether the stated conclusion on a point of law in the closure notice is right or wrong and, if wrong, to allow the appeal and reduce the amendment to nil. I agree with Mr Furness that such a result is inconsistent with the tribunal’s duty to decide whether the appellant is over– or undercharged by the self-assessment and accordingly to determine the figure for the amendment to the self-assessment,…’ 34. HMRC infer that this demonstrates the Tribunal does not just confirm the amount of tax in the appellants self-assessment as nil before the amendment and at nil after the amendment but that the figure of the amendment to the self-assessment has to be determined i.e. the results that flow from the determination of whether the figure for expenses included in the appellants original self-assessment is correct or whether the figure as amended by HMRC is correct. In the appellants case the amendment to her self-assessment following the enquiry resulted in a reduction of the amount of repayment she was entitled to receive; the outcome of the enquiry was that there was additional tax to pay amounting to£2,748.40 35. [ sets out s 50(6) and (7) ] 36. S50(6) and (7) TMA 1970 refer to an overcharge or undercharge in a self-assessment. The self-assessment is in 2 parts and based on the entries contained on the appellants 2011/12 SAITR the self-assessment was that she had overpaid tax amounting to£3,646.80 ; following the enquiry HMRC concluded that this figure was incorrect and should have shown overpaid tax amounting to£898.40 . HMRC were satisfied the appellant had over claimed expenses and there had therefore been an undercharge. The amount of the undercharge at S9(1)(a) TMA 1970 is£2,748.40 . HMRC consider the expenses deducted from employment income were too high but once the correct amount of expenses has been taken into account, and there has been a deduction of tax suffered at source, as required by S9(1)(b), this undercharge becomes an over-repayment of the same amount. 37. HMRC contend that S50 (6) and (7) TMA 1970 both provide for the assessment or amounts to be reduced/increased accordingly therefore whether the under or overcharge occurs at S9(1)(a), or, (1)(b) the legislation allows for the amount to be determined whether it is extra tax due or an over-repayment to be recovered.”
“10. HMRC contend that a self-assessment under S9(1) TMA 1970 is the figure arrived at by following a 2 step process. Firstly the income tax charge is established from the entries contained in a return after deducting the claim for allowances and reliefs, and secondly there is an assessment of the amount payable, which is the difference between what is assessed as due and what has been deducted at source. The result can be a positive figure meaning there is tax to pay, a negative figure meaning there is tax to be repaid, or, it can be nil meaning there is nothing to pay or to be repaid. … 14. HMRC contend the legislation is clear. A self-assessment is the figure produced having ascertained what tax is due and deducting from this the tax that has been deducted at source, however the legislation prevents notional tax treated as paid on certain types of income but which is not repayable to the taxpayer, from being treated as tax deducted at source for the purposes of S9(1)(b). 15. HMRC consider the legislation at S9(1) TMA 1970 can be [ sic- produce?] a repayable amount and the final clause of S9(1) suggests that amounts can be repayable and this is why there is the restriction on repayment of notional amounts of tax. If no item could be repayable under subsection (1)(b) it would not be necessary to include these words and it would not be necessary to specify certain items that cannot be repaid. 16. HMRC also consider the use of the word “repayable” within S9 TMA 1970 indicates the calculation required to establish the figure payable at S9 (1)(b) is not intended to arrive at nil but rather either a positive or negative figure 17. S121 FA 1996 amended S8, S8A and S12AA TMA 1970 with effect from 1996/97 and subsequent years and a Special Self-Assessment edition of the Tax Bulletin was published in 1997 which clarified the purpose of a return under the new self-assessment regime. It said the changes made clear that the purpose of a return and self-assessment was not only to establish the amounts chargeable on the person by way of Income Tax and Capital Gains tax but also to establish the amount payable [or repayable] for the year. The two amounts are different in that tax credits, and other IT deducted at source, are deducted from chargeable amounts to arrive at the payable amount. [ The square brackets and the words in them are HMRC’s ] 18. HMRC’s publication SAT2 Self-Assessment – The Legal Framework (SALF) whilst not legislation clearly sets out the policy intention as to how Self-Assessment was intended to operate from its introduction. HMRC refer to SALF 204 which says that a self- assessment is required even when a taxpayer is entitled to a net repayment of tax (e.g. a repayment of tax deducted at source). 19. HMRC consider that the legislation at S8(1AA) (b) or S9(1) (b) TMA 1970 does not say what the figure in a self-assessment must be. Although the legislation refers to amounts payable by a person, this can be a positive amount, nil or a negative amount, as it is the difference between two figures i.e. the amount chargeable to income tax and the aggregate amount of income tax deducted at source etc. It will be either a positive or negative figure as although it may be possible, it would be unusual that this figure will ever be nil. Whilst the amount of tax due may be nil this does not mean the payable figure (S9(1)(b)) has to be nil. S9(1) is worded in such a way to make it clear that both the figures at S9(1)(a) and (1)(b) are the self-assessment.”
“In determining for the purposes of this Chapter whether this Chapter applies by virtue of subsection (1) to a car ... made available to an individual it is immaterial whether or not the terms on which the car ... is made available constitute a fair bargain.”