In City Wide Transit, Inc. v. Commissioner, 709 F.3d 102 (2d Cir. 2013), here and here, the Second Circuit -- the second court to confront the issue head on -- aligned itself with Allen in a case involving preparer fraud that was included on the return of otherwise innocent taxpayers. I quote the key part of the Second Circuit decision:
In analyzing § 6501(c)(1), we remain mindful that "limitations statutes barring the collection of taxes otherwise due and unpaid are strictly construed in favor of the [Commissioner]." Bufferd v. Comm'r, 506 U.S. 523, 527 n.6 (1993) (internal quotation marks and citations omitted). "Accordingly, taking [that obligation] into account, we conclude that the limitations period for assessing [the taxpayer's] taxes is extended if the taxes were understated due to fraud of the preparer." Browning v. Comm'r, 102 T.C.M. (CCH) 460, 2011 WL 5289636, at *13 n.14 (2011) (quoting Allen v. Comm'r, 128 T.C. 37, 40, 2007 WL 654357, at *40 (2007)). This makes intuitive sense because "the special disadvantage to the Commissioner in investigating fraudulent returns is present if the income tax return preparer committed the fraud that caused the taxes on the return to be understated." Allen, 2007 WL 654357, at *40.So, the Second Circuit dealt perfunctorily with the Allen issue, but summarized the analysis.