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Commissioners for His Majesty's Revenue and Customs v Sintra Global Inc & Anor

Smart Summary

Anonymised Summary of Legal Opinion

Factual and Procedural Background

This appeal concerns the allocation of the legal burden of proof in civil tax penalty proceedings brought by the Tax Authority against two taxpayers: Company A (a company incorporated in Panama, which had received a transferred business from Company B) and an Individual Appellee who controlled the earlier company (Company B) and was involved in the trading activities at issue. The Tax Authority alleges that Company B and then Company A were involved in inward diversion fraud in the alcohol trade, evading VAT and excise duty between 2004 and 2014.

The Tax Authority issued assessments, registration decisions and multiple penalty notices between 2015 and 2017 against Company B, Company A and the Individual Appellee, including (a) best-of-judgment assessments to VAT and excise duty; (b) civil evasion and other tax penalties under prior and successor statutory regimes; and (c) director's liability and personal liability notices making the Individual Appellee personally liable for portions or the whole of some penalties.

Company A and the Individual Appellee appealed various decisions to the First-tier Tribunal (FTT). The FTT heard the appeals in a three-month hearing and allowed the appeals generally, holding (among other things) that the Tax Authority bore the burden of proof in relation to penalty liability and that, on the evidence, the Tax Authority had not proved that Company A made taxable supplies in the UK. The Tax Authority appealed to the Upper Tribunal (UT) on multiple grounds. The UT (sitting on appeal) reversed some aspects of the FTT's reasoning, notably on certain procedural and assessment grounds, but it expressly held (on Ground 1) that in penalty appeals the presumption of innocence under Article 6(2) ECHR generally requires the Tax Authority to bear the burden of proof in relation to penalty liability, including where a taxpayer challenges the underlying assessment, unless an exception applies. The Tax Authority obtained permission to pursue a further appeal to the court on three grounds (relating to the allocation of burden of proof, the subsumption of a registration appeal into a penalty appeal, and materiality of an error of law by the FTT).

Legal Issues Presented

  1. Where a taxpayer challenges a civil tax penalty by disputing the correctness of an underlying tax liability, does the legal burden of proof on that underlying liability rest on the taxpayer (as it would on an appeal against the assessment) or on the Tax Authority (as the party seeking to establish liability to a penalty), particularly in light of the classification of penalty appeals as "criminal charges" for the purposes of Article 6(1) ECHR?
  2. Was it lawful for the UT to treat Company A's separate appeal against a decision that it was required to register for VAT as subsumed within Company A's appeal against the registration penalty, thereby governing where the burden of proof on the registration issue should lie?
  3. Was the UT correct to refuse to set aside the FTT decision despite the UT finding that the FTT had erred by compartmentalising evidence (in particular by deciding the place-of-supply issue before deciding control), and was that error material?

Arguments of the Parties

Appellant's Arguments (Tax Authority)

  • The legal burden of proof on an appellant challenging the correctness of an underlying tax assessment (or registration liability) should remain on the taxpayer when that issue is raised in penalty proceedings, as it would on a direct appeal against the assessment, except where statute expressly provides otherwise or where the essential element requires proof of particular state of mind (e.g. knowledge of fraud).
  • Article 6 does not generally require the Tax Authority to bear the legal burden on the underlying tax liability component where that component can be severed from the penal aspects of the proceedings; Ferrazzini and related Strasbourg authority allow ordinary tax liability matters to fall outside Article 6.
  • If severance is not possible, a reverse legal burden on the taxpayer in relation to the underlying liability would be justifiable and proportionate on the facts of this case.
  • Separately, the UT erred in subsuming Company A's registration appeal into the registration-penalty appeal; they are separate appeals and the burden allocation should be considered separately.
  • The UT erred in its approach to materiality when refusing to set aside the FTT decision despite diagnosing the FTT's compartmentalisation error; an error is material if the tribunal might have reached a different conclusion absent the error.

Appellees' Arguments (Company A and Individual Appellee)

  • The FTT and UT were correct to conclude that penalty appeals engage Article 6 and that, as a general rule, the Tax Authority must prove all aspects of liability to penalties, including elements that call into question the underlying tax assessment, unless a clear justification for an exception exists.
  • The relevant penalties in this case are punitive rather than regulatory, involve proof of "deliberate" conduct and large sums, and therefore fall within Article 6; it would be unfair and disproportionate to impose a reverse legal burden on taxpayers to disprove underlying liability.
  • When the Tax Authority pleads fraud or dishonesty, it should particularise and prove those allegations; that does not, however, convert the nature of the burden in tax-assessment appeals, but it does support the conclusion that penalties require the Tax Authority to prove the factual foundation of the penalty.
  • Zaman (the earlier UT decision) was wrongly decided and may be regarded as per incuriam; the UT was right to reject it in favour of the approach that penalty appeals place the burden on the Tax Authority.
  • The UT was entitled to conclude that the FTT's compartmentalisation error was not materially prejudicial to the outcome because the FTT's place-of-supply conclusions were reached on evidence not dependent on the control issue.

Table of Precedents Cited

Precedent (anonymised reference) Rule or Principle Cited For Application by the Court
Precedent Z (earlier UT decision on burden in penalty appeals, 2022) Held that if a challenge to a penalty is made solely on the basis that the underlying assessment is wrong, the burden in relation to those elements remains on the taxpayer. Considered in-depth by the UT in the present case; the UT rejected Z as wrong/per incuriam, but the court in the present opinion concludes Zaman was correctly decided and supports allowing the Appellant's Ground 1.
Precedent D (FTT decision cited describing diversion fraud) Descriptive account of "inward diversion fraud" methodology used as factual background. Both Tribunals and this court adopt that factual description as a helpful outline of the alleged fraudulent process.
Precedent A (Awards Drinks Ltd v Tax Authority, 2021) Support for the proposition that in tax appeals generally the burden lies on the taxpayer to show the assessment is wrong. Referred to by FTT and UT when considering the general rule in tax assessment appeals; used to support the proposition that pleading fraud does not change the burden on assessment appeals.
Precedent K (Khan v Tax Authority, 2006) Explains that the burden lies on the taxpayer in relation to best-of-judgment assessments and that the burden does not change merely because allegations of fraud are involved; provides broader principle that where a statute gives a right of appeal against enforcement action, the burden normally lies on the appellant. Relied upon by the FTT and UT; the court identifies Khan as authoritative and binding on this point and treats its guidance as central to the question whether the legal burden can be imposed on the taxpayer.
Precedent B (Brady v Group Lotus Car Companies plc, 1987) Authority that the burden of proof on an appeal against a best-of-judgment assessment lies on the taxpayer and that this does not change merely because fraud is alleged. Cited by the FTT and UT; used to support the proposition that tax-assessment appeals carry a burden on the taxpayer.
Precedent King (King-related domestic decisions and Strasbourg follow-up) Demonstrates that penalty proceedings can be "criminal" in nature for Article 6(1) and that in some penalty contexts the legal burden has lain on the Revenue where fraud/dishonesty are central. Discussed as part of the Article 6 jurisprudence; cited to show circumstances in which Article 6 applies and to illustrate how burden allocations have been treated in complex cases with multiple penalties.
Precedent M (Massey v Tax Authority, 2016) Support for the proposition that in penalty proceedings HMRC bears the burden of proving default triggering the penalty. Referenced by the FTT as authority for the proposition that in penalty proceedings the Tax Authority bears the burden of proof on penalty matters.
Precedent I (Ingenious Games LLP v Tax Authority, 2015) Considered in review of authorities on burden of proof in tax appeals. Referred to by the UT among the cases supporting the general approach to the burden in tax appeals.
Precedent E (E Buyer UK Ltd v Tax Authority / Buyer UK Ltd v Tax Authority, 2017) Where dishonesty or fraud is pleaded, the Tax Authority must plead, particularise and prove it in civil proceedings. Cited by the Appellees to support the submission that where dishonesty/fraud is alleged, the Tax Authority must particularise and prove those allegations.
Precedent EuroW (Euro Wines v Tax Authority, 2018) Holds that certain reverse burdens in excise/duty contexts were compatible with Article 6 because of regulatory context and specific statutory wording (section 154(2) CEMA 1979). Relied on by both sides: Appellees invoke it to show penalty contexts can justify HMRC bearing burden; Appellant notes it was directed to a specific statutory reverse burden and that related dicta were obiter in the present context.
Precedent Kittel (Axel Kittel v Belgian State, C-439/04) European principle about link to fraud and the need to prove knowledge or connection with fraud in certain VAT contexts. Referred to by the UT when discussing exceptions where the Tax Authority must prove particular state of mind (e.g. knowledge of fraud).
Precedent Gilchrist (Gilchrist v Tax Authority, 2014) Principle that, as a tribunal of coordinate jurisdiction, a later UT should normally follow an earlier UT unless satisfied it was wrong. Referred to by the UT when explaining why it would normally follow an earlier UT decision but declined to follow Zaman because it concluded that decision was wrong in context.
Precedent Ferrazzini v State (ECtHR, 2001) Held that ordinary tax disputes generally fall outside Article 6(1)'s "civil rights and obligations" limb and do not engage the "criminal charge" limb. Adopted as foundational Strasbourg authority: the court uses it to distinguish which parts of proceedings fall within Article 6 and which do not.
Precedent Han (Han and others v Tax Authority, 2001) Domestic court decision holding that civil penalty proceedings under section 60(1) VATA engaged Article 6(1) "criminal charges" limb. Used to show that penalties can attract Article 6 protection; this is contrasted with Ferrazzini's exclusion of ordinary tax disputes from Article 6.
Precedent Georgiou (ECtHR, 2001) Provided criteria indicating when a penalty is a "criminal charge" (deterrent/punitive nature, substantial penalty) and accepted that, in practice, it may be difficult to separate penal and tax aspects. Used to support the approach that tribunals should consider proceedings to the extent they determine a criminal charge, acknowledging necessary overlap with tax assessments.
Precedent Engel (Engel v Netherlands) Engel criteria used to determine whether an offence is "criminal" for Article 6 purposes. Referred to in domestic reasoning about whether penalty proceedings attract Article 6 protection.
Precedent Bendenoun (Bendenoun v France) Illustrates that domestic classification as civil does not preclude Article 6 if the measure is punitive/deterrent. Referenced to show domestic labels are not determinative of Article 6 applicability.
Precedent Janosevic v State (ECtHR, 2004) Tax surcharge regime held to engage the "criminal charge" limb; court to consider proceedings to extent they determine a criminal charge. Adopted to underline the approach to severance and to assess Article 6 protection only to the extent necessary.
Precedent Jussila v State (ECtHR, 2009) Confirmed that tax surcharges can be "criminal" for Article 6 and emphasised that penalties differ from the hard core of criminal law; criminal guarantees need not apply with full stringency. Used to justify a nuanced approach to Article 6 in tax-penalty contexts and to acknowledge that tax penalties occupy a lower end of the criminal spectrum.
Precedent Sheldrake v DPP (House of Lords, 2004) Leading authority on reverse burdens in criminal law; sets out framework for assessing compatibility with Article 6 and for reading down to evidential burdens where necessary. Applied as the central domestic authority on the justifiability of reverse legal burdens and on the methodology for assessing proportionality and compatibility with Article 6.
Precedent Salabiaku v France Leading Strasbourg authority on the presumption of innocence and limits on presumptions adverse to defendants. Invoked in analysis of whether reverse burdens fall within reasonable/proportionate limits under Article 6.
Precedent Doorstep (Doorstep Dispensaree Ltd v Information Commissioner, 2024) Applied Khan, Brady and Awards Drinks to hold that on an appeal against a civil penalty under data-protection law the burden of proof was on the appellant to demonstrate the penalty could not stand. Used to show that courts have applied Khan-style reasoning beyond tax to other regulatory penalty regimes; cited in support of the proposition that appellant/taxpayer burden may apply to penalty appeals in certain contexts.
Precedent Omagh Minerals (FTT decision, 2018) Illustrates circumstances where the penalty part of proceedings engages Article 6 while the assessment part does not and where severance is appropriate. Relied on to show that severance of proceedings is often possible and appropriate so Article 6 need not apply to the underlying assessment.
Precedent Johnson v Gore Wood & Co Principles on issue estoppel and abuse of process relevant to whether an appellant may reopen underlying matters in penalty appeals. Referred to as a relevant limit on reopening previously determined issues or permitting abuse of process.
Precedent Kishore (domestic appellate decision) Discusses principles limiting reopening of prior determinations and the application of Johnson principles. Referred to when discussing the types of proceedings in which an appellant may challenge underlying liability.
Precedent PML Accounting (domestic appellate, dissenting passage cited) Recorded a view (in dissent) that burden in penalty proceedings lies on the Tax Authority because of the penal character of such appeals. Cited by Appellees for the proposition that penalty appeals generally place the burden on the Tax Authority; the court notes its limited precedential weight.
Precedent Bi-Flex Caribbean Ltd v Board of Inland Revenue Quoted for the principle that best-of-judgment assessments are prima facie right and remain so unless the taxpayer shows they are wrong and what corrections should be made. Used within the Khan analysis and accepted as foundational for the rule placing the burden on the taxpayer in best-of-judgment contexts.
Precedent Pegasus Birds (Customs & Excise Comrs v Pegasus Birds Ltd, 2004) Confirmed burdens in appeals against best-of-judgment assessments and cautioned against converting such appeals into attacks on Commissioners' exercise of judgment. Relied upon in the Khan discussion and in the court's assessment of the proper focus of assessment appeals.
Precedent Hill v Secretary of State Illustrates general presumption that an appellant must prove his case in enforcement appeal contexts (planning law analogue). Used in Khan to support the broader principle that appellants generally bear the burden in appeals against administrative enforcement decisions.
Precedent Nelsovil Ltd v Minister of Housing Planning enforcement appeal authority reflecting the principle that an appellant must prove his case. Referred to in the discussion of general principles about burden allocation in statutory appeals.
Precedent Traffic Commissioner v Muck It Ltd Example where burden allocation depended on construction of particular regulations and directives. Used to show that statutory context can displace the ordinary rule about burden of proof.
Precedents R v Benjafield and R v Rezvi (House of Lords cases) Discussed in relation to confiscation orders and the permissible reach of presumptions and reverse burdens. Referenced in Khan and in Sheldrake context as part of broader jurisprudence on reverse burdens.

Court's Reasoning and Analysis

The court framed the central legal problem as whether, when a civil tax penalty is imposed and the taxpayer challenges the penalty by disputing the underlying tax liability, the legal burden of proof on that underlying liability remains on the taxpayer (as in an assessment appeal) or shifts to the Tax Authority (as the party seeking to impose the penalty), with particular focus on the effect of Article 6(1) and (2) ECHR.

The court reviewed Strasbourg jurisprudence (notably Ferrazzini, Georgiou, Janosevic and Jussila) and domestic authorities (including Khan, Brady, King-related authorities and Sheldrake). The court extracted these principles:

  • Strasbourg law distinguishes ordinary tax disputes (typically outside Article 6) from tax penalties, which frequently qualify as "criminal charges" under Article 6(1) and thus engage the presumption of innocence under Article 6(2).
  • Where proceedings combine a tax-assessment element and a penalty element, Strasbourg guidance permits (and prefers, where practicable) severing the parts that determine a criminal charge from those that do not; if severance is possible, Article 6 need not apply to the non-criminal part.
  • Domestic case law establishes that, in appeals against best-of-judgment assessments and similar tax-assessment appeals, the legal burden generally rests on the taxpayer to show the assessment is wrong; this rule does not change merely because fraud is pleaded.
  • Penalty appeals have a different character: the Tax Authority generally bears the burden of proving the bespoke conditions for penalty liability (the punitive elements) because these are, in essence, criminal-type determinations engaging Article 6 protections.

Applying these principles, the court concluded (in summary):

  • Where an appellant in penalty proceedings wishes to challenge the underlying tax liability that underpins the penalty, the correct approach is a hybrid: the Tax Authority bears the burden of proving the penalty-specific elements (the punitive/culpability conditions) that engage Article 6, but the taxpayer bears a separate legal burden to prove that the underlying tax liability is wrong in the same way as on a direct appeal against the assessment.
  • This hybrid approach avoids anomalous and arbitrary results that would otherwise arise if the taxpayer could shift the legal burden to the Tax Authority simply by raising the underlying-assessment issue in penalty proceedings rather than by pursuing a direct assessment appeal or if the burden depended on the procedural form in which the matter arose.
  • The court accepted that, in most cases, the tax-liability element can be severed from the penal elements so that Article 6 does not apply to the underlying tax question; where severance is impracticable, the court endorsed that a reverse legal burden on the taxpayer in relation to the underlying liability would be justifiable and proportionate in many cases, relying on established jurisprudence for assessing such reversals.
  • On the application of these principles to the present appeals, the court determined that Company A (and the Individual Appellee where relevant) would bear the legal burden to prove that the underlying tax or registration liability was wrong, while the Tax Authority would bear the burden in relation to penalty-specific conditions (such as deliberate conduct, concealment, or other culpability elements), save for any narrow statutory exceptions expressly allocating burden otherwise.
  • The court found that Zaman was substantively correctly decided (that is, it captured substantial points favourable to the Tax Authority's position), although Zaman's reasoning about evidential/legal burden terminology had caused some confusion; nevertheless, the court concluded that the UT in the present case erred in treating Company A's separate registration-appeal as subsumed into the penalty appeal and erred in its materiality analysis of the FTT's compartmentalisation error.

Holding and Implications

HOLDING: The court would allow the Tax Authority's appeal on all three grounds raised in the proceedings before it.

Core rulings (emphasised):

  • On Ground 1: The court declared that while the Tax Authority bears the burden to prove penalty-specific elements that engage Article 6, a taxpayer who challenges the correctness of an underlying tax liability in penalty proceedings bears a separate legal burden to prove that the underlying tax liability or registration decision is wrong in the same manner as on a direct appeal against the assessment or registration decision.
  • On Ground 2: The UT erred in subsuming Company A's separate appeal against the registration decision into the penalty appeal; those are distinct appeals and the allocation of the burden of proof must be treated separately.
  • On Ground 3: The UT erred in concluding that the FTT's compartmentalisation error was not materially capable of affecting the place-of-supply finding; the error was materially capable of affecting the outcome and justified allowing the appeal on this ground.

Implications:

  • The decision sets out a clarified, hybrid approach to burden allocation in penalty appeals that involve challenges to underlying tax liabilities: penalty-specific (punitive) elements remain for the Tax Authority to prove, but the taxpayer must bear the legal burden to displace an underlying assessment or registration decision if they wish to rely on that defence in penalty proceedings.
  • The court ordered that all open appeals be remitted to the FTT for rehearing at least on the place-of-supply issue in light of the corrected principles on burden and due to other identified errors; the court also indicated a provisional view that the rehearing should be before a differently constituted FTT panel and invited submissions on the scope of any remitter and directions for the rehearing.
  • The court clarified that Zaman's substantive conclusion aligns with the proper legal approach (subject to careful rectification of terminology concerning legal versus evidential burdens), and the court did not endorse treating Zaman as per incuriam.
  • Although the holding resolves the allocation of the legal burden in the circumstances before the court, the court noted that it did not purport to create novel statutory exceptions and that statutory wording or narrow exceptions (e.g., where statute expressly allocates burden or where specific mental elements must be proved) remain operative.

Direct effect on the parties: The court's outcome requires rehearing of the remitted appeals in the FTT. The Tax Authority's appeal succeeds; the FTT and UT decisions are altered in the respects identified above, and the matters remitted must be reconsidered under the court's allocation of burdens.

No broader common-law precedent beyond the stated principles is created by this summary beyond the application of the authorities cited and the court's reasoning in this case.

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Commissioners for His Majesty's Revenue and Customs v Sintra Global Inc & Anor

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Commissioners for His Majesty's Revenue and Customs v Sintra Global Inc & Anor
(Dec 18, 2025)