Accessoriness ruling: an aider's liability ends when the tax debt becomes time-barred

Bundesfinanzhof (German Federal Fiscal Court), judgment of 21 April 2026 — VII R 18/24, ECLI:DE:BFH:2026:U.210426.VIIR18.24.0 · Full text (PDF, German)

The case

The underlying facts concern import duties, not a VAT chain. In 2009, a GmbH made false statements about sellers and customs values on imports; the Principal Customs Office subsequently assessed the import duties against the GmbH in 2009/2010 (paras 1–2). The claimant was convicted, with final effect, in 2017 of aiding and abetting commercial smuggling in 103 concurrent counts and received a suspended custodial sentence (para 1). Insolvency proceedings over the GmbH’s assets were opened in 2010 and discontinued in 2011; the customs authority had registered its claims in those proceedings (para 2). Only in December 2019 — ten years after the acts — did the customs authority issue nine secondary-liability notices against the aider under section 71 of the German Fiscal Code (Abgabenordnung — AO) for the GmbH’s import duties (para 3). The Hamburg Fiscal Court upheld the notices: although the duties assessed against the GmbH had become time-barred for collection purposes at the end of 2016, it read section 191(5) sentence 2 AO as lifting that bar for accessories as well (paras 4–5). The Seventh Senate disagreed — and set aside every liability notice.

The court’s reasoning

The Senate first confirms that all the substantive conditions of liability were met: aiding and abetting commercial smuggling (section 373(1) AO) constitutes participation in tax evasion within the meaning of section 71 AO (old version), smuggling being a qualified form of the basic offence in section 370 AO (paras 18–20). The ten-year assessment period under section 191(3) sentence 2 AO had not yet expired in December 2019 (paras 23–24), and, in cases of intentional aiding, the authority’s discretion is “pre-shaped” in favour of recourse (para 25).

Liability nevertheless fails — on accessoriness grounds. The import duties assessed against the GmbH became time-barred for payment purposes on 31 December 2016: the five-year period of section 228 sentence 2 AO (old version) still applied, because the ten-year period introduced by the 2017 anti-avoidance legislation only captures periods still running on 24 June 2017 (Art. 97 § 14(5) of the Introductory Act to the AO; para 31), and the suspension rule in section 230(2) AO as amended in 2022 only applies to periods not yet expired on 21 December 2022 (para 33). Under section 191(5) sentence 1 no. 2 AO, no liability notice could therefore be issued any longer (paras 27–28, 36–38).

The exception in section 191(5) sentence 2 AO — which pierces accessoriness where the person liable has committed tax evasion or receiving of stolen tax goods — does not apply to a mere accessory (paras 39–41). The Senate thereby resolves a previously open question (paras 42–43) against the court below and part of the fiscal-court case-law (para 44), in line with the prevailing view in the literature (paras 45–46). The primary ground is the wording: the provision does not mention participation, and only a principal “commits” an offence — in the Senate’s words: “For linguistically, only the perpetrator commits an offence, for example tax evasion. The aider, by contrast, does not ‘commit’ tax evasion but renders assistance to it.” (para 47; unofficial translation). The Senate adds that the provision is an exception to be construed narrowly (paras 48–50); that the law of secondary tax liability, unlike criminal law, has no general part on participation — perpetrators and accessories are equated only where the statute says so expressly, as in sections 71 and 70(1) AO (paras 51–55); that section 219 sentence 2 AO is read the same way (paras 56–59); and that the lesser degree of wrongdoing inherent in mere participation — mirrored in the mandatory mitigation of sentence under section 27(2) sentence 2 of the Criminal Code — tells against equal treatment (paras 60–61). Section 191(5) sentence 2 AO aggravates liability, and for aggravating rules the tacit equation of accessories with principals is precisely not warranted (para 62). The legislative history (a clarifying amendment proposed in 1985 — “or participated in such an offence” — was never enacted; Bundestag printed papers 10/1636, pp. 8, 48; 10/4513, p. 11) compels no different result (paras 63–66).

Where the decision sits in the case-law

The Seventh Senate had expressly left the question open in its judgment of 21 November 2000 — VII R 8/00, BFH/NV 2001, 570 (para 43); the Nuremberg Fiscal Court (judgment of 1 April 2008 — II 127/2005, DStRE 2008, 1292) and the Hessian Fiscal Court (judgment of 25 August 1999 — 7 K 2815/96, EFG 2000, 295) had extended the exception to accessories (para 44) — that line is now closed. At the same time, the judgment fits squarely within the Senate’s settled accessoriness doctrine: a person secondarily liable can no longer be pursued once the primary debt has been extinguished (BFH, judgment of 5 October 2004 — VII R 7/04, BFHE 209, 392, BStBl II 2006, 343; para 49). At European level, the decision resonates with the recent strengthening of the procedural position of persons held liable for another’s tax: the Court of Justice requires that a director held jointly liable must be able to challenge, indirectly, the final tax assessment issued against the company (CJEU, judgment of 16 July 2026 — C-158/25, ECLI:EU:C:2026:591, operative part no. 2 — decided on joint and several director liability, not on section 71 AO).

The judgment was not rendered in a VAT-chain setting — the transfer is our own inference: section 191(5) AO applies across all taxes, and in carousel and supply-chain proceedings, persons at the margin of events (dispatchers, bookkeepers, brokers, at times directors of buffer companies) are typically convicted as aiders only. For them, the ratio of this judgment means: once the principal’s VAT debt is time-barred for collection or has been remitted, the route via section 71 AO is closed. The legislative countercurrent must be kept in view: for limitation periods still running under the transitional rules, the ten-year collection limitation (section 228 sentence 2 AO, new version) and the suspension rule of section 230(2) AO now apply — the temporal scope (Art. 97 § 14(5) and (6) of the Introductory Act) must therefore be verified precisely in every case (paras 31, 33).

The literature

The decision adopts the reasoning of the prevailing commentary literature — expressly the “unambiguous wording” argument advanced by Jatzke (in: Gosch, AO, § 191 marginal no. 49; para 47) — and rejects the contrary view taken by Boeker (in: Hübschmann/Hepp/Spitaler, § 191 AO marginal no. 245; para 44). From a defence perspective, the judgment belongs to a broader line of thought: Reiß has argued that liability under section 71 AO is the systemically correct, loss-capped instrument against chain participants — as opposed to the cumulative denial practice under section 25f of the VAT Act (Reiß, UR 2020, 408 [415 f.]). Whoever advocates the liability route as the milder instrument must take its rule-of-law limits seriously — which is exactly what the Seventh Senate does here. Quedenfeld/Füllsack describe section 71 AO liability as the “second front” alongside the criminal proceedings and note that the fiscal court may adopt the findings of a criminal judgment where no substantiated objections are raised (Verteidigung in Steuerstrafsachen, 6th ed. 2025, Part 1 B.II.1 marginal nos. 175 et seq., pp. 36 et seq.) — precisely what happened in this case (para 19). Schützeberg, writing from the prosecution’s perspective, recalls that the section 71 AO claim remains a discretionary decision under section 191 AO and is no automatic reflex of the offence (Schützeberg, PStR 2025, 4 [6]).

Three levels — kept strictly apart

Official headnote: “The piercing of accessoriness provided for in section 191(5) sentence 2 of the Fiscal Code does not apply to a person secondarily liable who merely participated in tax evasion or in receiving stolen tax goods.” (headnote; unofficial translation)

Administrative practice: No express administrative guidance exists (as at 19 August 2026).

Our conclusion for the defence: Expressly our own assessment: the ratio should be transferred to VAT-chain proceedings. Anyone who merely aided within a supply chain — in practice the most frequent form of conviction at the margin of carousel structures — can no longer be pursued under section 71 AO once the primary debt is time-barred for collection. The limitation audit of the primary debt (commencement, interruption events, transitional law) therefore belongs at the start of every liability defence, not at its end. Equally, the judgment is no all-clear: the Senate confirmed liability on the merits, including the pre-shaped discretion; the win lies in limitation periods and the form of participation, not in the elements of liability themselves.

Defence levers

• Limitation audit of the primary debt: In every section 71 AO case, first reconstruct the collection and assessment limitation of the primary debt — due date, interruption events (section 231 AO, including registration in insolvency proceedings), fresh commencement, transitional law (Art. 97 § 14(5) and (6) of the Introductory Act).
• Form-of-participation objection: Keep perpetration and participation strictly apart; section 191(5) sentence 2 AO carries only perpetration — scrutinise the wording of the criminal judgment, any discontinuance order and the liability notice accordingly.
• Substantiated objections instead of silence: Findings of a criminal court do not bind the fiscal court, but they will be adopted unless countered with concrete objections and applications for evidence (para 19).
• Accessoriness check on quantum: Extinguishing events (sections 47, 232 AO), payments by other joint debtors and remissions reduce liability directly (section 191(5) sentence 1 AO).
• Narrow construction as a template: Liability-aggravating exceptions are to be construed narrowly (paras 48–50) — the same figure of argument carries section 219 sentence 2 AO and can be deployed against other aggravating rules.

Defence assessment: POSITIVE · Keywords: section 71 AO; section 191(5) sentence 2 AO; accessoriness; collection limitation; accessory liability; commercial smuggling

FAQ

Source box

• BFH, judgment of 21 April 2026 — VII R 18/24, ECLI:DE:BFH:2026:U.210426.VIIR18.24.0 (court below: Hamburg Fiscal Court, decision of 25 July 2024 — 4 K 57/20).
• BFH, judgment of 21 November 2000 — VII R 8/00, BFH/NV 2001, 570 (question left open).
• BFH, judgment of 5 October 2004 — VII R 7/04, BFHE 209, 392, BStBl II 2006, 343 (accessoriness principle).
• CJEU, judgment of 16 July 2026 — C-158/25, ECLI:EU:C:2026:591 (defence rights of persons held liable; indirect challenge — transfer only, section 71 AO not decided there).
• Bundestag printed papers 10/1636, pp. 8, 48; 10/4513, p. 11 (Tax Amendment Act 1985).
• Reiß, UR 2020, 408 (415 f.); Schützeberg, PStR 2025, 4 (6); Quedenfeld/Füllsack, Verteidigung in Steuerstrafsachen, 6th ed. 2025, Part 1 B.II.1 marginal nos. 175 et seq. (pp. 36 et seq.); Jatzke, in: Gosch, AO, § 191 marginal no. 49 (as cited at para 47 of the judgment).