| Case A (Joined Cases C-123/87 and C-330/87) |
Compliant invoice described as the "ticket of admission" to the right to deduct; Member States may adopt rules on invoice content necessary for verification and fiscal control. |
Used to emphasise the centrality of the invoice in the VAT system and that Member States may require invoices meeting content requirements for verification. |
| Case B (Case C-146/05) [2008] STC 757 |
Member State formal requirements may be required for prevention of tax evasion but must not go further than necessary; fiscal neutrality requires substantive requirements be met even if some formal requirements not complied with unless non-compliance prevents conclusive evidence. |
Applied to show that formal requirements may be waived if substantive proof exists, but not if non-compliance prevents production of conclusive evidence. |
| Case C (Case C-516/14) |
Invoice must enable checking whether issuer has paid the tax; invoice's role is to provide information necessary for tax authorities to ensure payment by the issuer. |
Reinforced the proposition that invoices must be accessible to tax authorities to serve their function as proof. |
| Case D (Case C-518/14) [2017] STC 205 |
Invoice is a form of proof permitting collection and deduction of VAT; VAT identification aids verification and prevention of evasion. |
Supported the conclusion that invoices are central and must be produced to tax authorities to be effective proof. |
| Case E (Case C-152/02) [2005] STC 525 |
Right to deduct arises only when goods/services supplied and taxable person has a valid invoice; practical administrative consequences support this approach. |
Used to justify that the right to deduct depends on timely possession/production of an invoice and that retrospective exercise may cause administrative difficulties. |
| Case F (Case C-85/95) [1997] STC 180 |
Member States may require production of the original invoice on inspections; refusal to produce upon request may justify denying deduction unless other cogent evidence is admitted. |
Authorised domestic practice of denying deduction where invoice is withheld and confirmed Member States' power to require original invoices for supervision. |
| Case G (Case C-271/12) [2013] STC 1466 |
Where corrected invoices are submitted before the authority's decision the right cannot in principle be refused; but information submitted after the authority's decision does not compel revisiting that decision. |
Held that evidence supplied after the authority's refusal does not oblige tax authorities to revisit their decision — supports supervisory approach. |
| Case H (Case C-159/17) |
Denial of deduction as penalty for formal non-compliance may go further than necessary; refusal depends on whether lack of information prevents production of conclusive evidence of substantive requirements. |
Used to explain that refusal should be justified by absence of information necessary to establish substantive entitlement, not merely formal non-compliance. |
| Tower Bridge GP Ltd v Appellee [2022] EWCA Civ 998, [2022] STC 1324 |
Two discretions in Reg 29(2): (1) whether to entertain alternative evidence; (2) if so, what alternative documentary evidence is required. |
Quoted to illustrate the two-stage nature of the discretion under Reg 29(2). |
| Kohanzad v Company A [1994] STC 967 |
Where the tax authority exercises discretion to refuse credit, the tribunal's role is supervisory and focused on materials before the authority when decision was made; later material is generally not for consideration in reviewing the discretionary exercise. |
Applied as leading authority for the supervisory nature of tribunal review where Reg 29 discretion is exercised. |
| GB Housley Ltd v Appellee [2014] UKUT (TCC), [2014] STC 2733 |
Confirmed application of supervisory review where discretion under Reg 29 is at issue; addressed procedural consequences where discretion was not considered. |
Discussed in support of principle that tribunal reviews exercise of discretion on materials before the authority. |
| HMRC v Boyce [2017] UKUT 177 (TCC), [2017] BVC 513 |
Applied supervisory review principles in cases of discretionary refusals of input tax. |
One of the post-Kohanzad authorities applying the supervisory approach. |
| Scandico Ltd v Appellee [2017] UKUT 467 (TCC), [2018] STC 153 |
Where the authority decides it is not satisfied on the evidence before it, the tribunal's review is supervisory and later evidence before the tribunal does not entitle the appellant to sidestep the authority's discretion. |
Relied on to confirm that tribunal should address the authority's decision as made and apply Kohanzad test. |
| GB Housley v Appellee [2017] STC 508 (CA) |
If tribunal allows appeal because the authority failed to consider Reg 29 discretion, the assessment falls to be discharged rather than remitting for fresh consideration; subsequent factual materials cannot be used to justify the original decision. |
Applied to explain limits on remittal and to prevent authorities relying on later materials to support earlier decisions. |
| BUPA Purchasing Ltd v Company A (No 2) [2007] EWCA Civ 542, [2008] STC 101 |
Section 73 assessments must assess a net amount of VAT due; if taxpayer contends repayment is due they must appeal under other grounds such as amount of input tax allowed. |
Used to show formal gateways to appeal but not to change the nature of tribunal jurisdiction depending on which gateway is used. |
| Rahman v Company A [1988] STC 826; Rahman (2) [2003] STC 150 |
Best judgment assessments involve two stages: (1) whether assessment was made to the best judgment; (2) if so, whether the amount should be reduced by reference to further evidence available to the tribunal. |
Discussed to show instances where tribunals may consider material not available to the authority when substituting their own judgment on amount. |
| Pegasus Birds Ltd v Company A [2004] EWCA Civ 1015, [2004] STC 1509 |
Guidance that tribunal's primary task is to find the correct amount of tax on material properly available to it; tribunals should not divert to attack the Commissioners' exercise of judgment except where properly pleaded. |
Examined in detail; court emphasised that Pegasus does not displace supervisory approach where the substantive decision is an exercise of discretion under Reg 29(2). |
| Mithras (Wine Bars) Ltd v Appellee [2010] UKUT 115, [2010] STC 1370 |
In considering an appeal against amount of an assessment, tribunal may have full appellate jurisdiction to decide the correct amount if the assessment was properly made to the Commissioners' best judgment. |
Used to contrast situations where the tribunal exercises full appellate jurisdiction on quantum once the best-judgment stage is satisfied. |
| Karoulla v Appellee [2018] UKUT 255, [2018] BVC 518 |
When tribunal is satisfied assessment was made to best judgment it may exercise full appellate jurisdiction on the amount and admit material not available to the Commissioners. |
Illustrated that full appellate jurisdiction on quantum can follow where Reg 29 discretion is not the substantive decision under challenge. |
| Rich Couture Ltd [2024] UKFTT 1077; 3KH Ltd [2025] UKFTT 748; Noonan [2025] UKFTT 67 |
FTT decisions in best-judgment assessment cases (none involved exercise of discretion under Reg 29). |
Cited as examples of best-judgment appeals where different procedural rules may apply; distinguished from Reg 29 discretionary refusals. |
| John Dee Ltd v Company A [1995] STC 941 |
The nature of the tribunal's function depends in large measure on the nature of the decision appealed against. |
Quoted for principle that tribunal powers depend on the nature and substance of the decision under challenge rather than the procedural gateway. |