"(1) Subject to paragraph (2) below, a flat-rate trader ceases to be eligible to be authorised to account for VAT in accordance with the scheme where - .... (g) he opts to withdraw from the scheme..."
"(1) Subject to sections 83G and 84, an appeal shall lie to the tribunal with respect to any of the following matters - .... (fza) a decision by the Commissioners - (i) refusing or withdrawing authorisation for a person's liability to pay VAT (or entitlement to credit for VAT) to be determined as mentioned in subsection (1) of section 26B..."
"(4ZA) Where an appeal is brought - (a) against such a decision as is mentioned in section 83(1)(fza), or (b) to the extent that it is based on such a decision, against an assessment, the tribunal shall not allow the appeal unless it considers that HMRC could not reasonably have been satisfied that there were grounds for the decision."
"You should normally refuse an earlier date where the business has already calculated its VAT liability for the period(s) using the FRS accounting method. This is because FRS exists to simplify VAT accounting and record keeping, so allowing a business to spend less time on VAT. Allowing a business to withdraw from a retrospective date in these circumstances would undermine the purpose of the scheme."
"I comment that this appears to me to be an entirely rational policy, which reflects the simplification policy of the Flat-Rate Scheme itself. If a taxpayer has already accounted for VAT in the past on the normal basis, and in accordance with the general law then in force, there is no way in which retrospective admission to the scheme can simplify the accounting exercise that he has already carried out. In such cases, the only likely motive for seeking retrospective entry is that the taxpayer would, in fact, have ended up paying less tax had he been a member of the scheme, and that is indeed the position so far as Mr Burke is concerned."
"HMRC's policy is generally not to allow retrospective application or withdrawal from the flat rate scheme - and that retrospective applications should only be allowed in exceptional circumstances. The mere fact that a taxpayer will pay more tax under the flat rate scheme is not considered exceptional for these purposes. In our view this is a rational policy. The flat rate scheme is intended to provide a measure of simplification for small businesses, and is intended to be revenue neutral. The objective of the scheme is not to provide a mechanism for small businesses to pay less VAT - and this is clear from the provisions of the VAT Directive which allow member states to implement simplified VAT accounting arrangements for small businesses. The flat rate scheme is based on average rates of input recovery for business sectors - and as it is based on averages, it is inevitable that some taxpayers will pay more (or less) than average. If taxpayers were allowed to join or withdraw from the scheme retrospectively, then this would defeat the simplification objectives of the scheme. Taxpayers could "game" the system - and join the scheme on a "punt", and after three years review their input VAT and apply to withdraw from the scheme with retrospective effect if they found they would pay less VAT as a result."