Philip Caprio v. New York State Department of Taxation and Finance, 25 N.Y.3d 744

Background

Plaintiffs (Florida residents) sold all shares of an S corporation (TMC) in 2007; the parties elected a §338(h)(10) deemed asset sale and structured payment via installment notes.
For federal tax purposes, the transaction was treated as an asset sale with installment obligations passed through to shareholders; plaintiffs reported large federal gains when installment payments were received but reported no New York source gain on their New York returns.
Pre-2010 administrative rulings (Mintz, Baum) supported treating certain installment receipts as non-New York-source stock sale proceeds; DTF historically treated such installment income as New York source for nonresidents.
In 2010 the Legislature amended N.Y. Tax Law §632(a)(2) retroactive to Jan 1, 2007, to treat gain from deemed asset sales or installment obligations as New York-source income; DTF audited and assessed additional tax against plaintiffs.
Plaintiffs sued claiming the 3½-year retroactive application violated due process (harsh and oppressive/arbitrary), seeking declaratory and injunctive relief; Supreme Court upheld the amendments, Appellate Division reversed, and the Court of Appeals granted review.

Issues

Issue	Plaintiff's Argument	Defendant's Argument	Held
Whether retroactive (3½ years) application of 2010 amendment to Tax Law §632(a)(2) violates Due Process	Retroactive tax imposes a new tax on installment payments contrary to plaintiffs' reasonable reliance on pre-amendment law (Mintz/Baum), upsetting settled expectations	Retroactivity is curative of erroneous administrative rulings, rationally limited to open tax years, and plaintiffs lacked justifiable reliance	Upheld retroactive application; no due process violation — statute curative, plaintiffs lacked reasonable reliance; retroactivity period rational
Whether plaintiffs reasonably relied on pre-amendment law to their detriment	Plaintiffs: pre-amendment rulings and federal statutes supported treating payments as stock-sale proceeds not taxable by NY	DTF: pre-amendment policy (internal guidance and Publication 88) and legislative findings show longstanding contrary practice; reliance on untested interpretation was unreasonable	Reliance not reasonable; plaintiffs used an untested interpretation contrary to the State’s long-standing policy and legislative findings
Whether 3½‑year retroactivity period is excessive	Plaintiffs: period imposes harsh and oppressive retroactive burden on settled transactions	Defendants: period targeted only open tax years (to recapture refunds and prevent revenue loss); curative purpose justifies length	Period reasonable and not excessive given curative purpose and relation to open years
Whether curative/public purpose justifies retroactivity	Plaintiffs: amendments operate as new tax rather than true clarification	Defendants: legislature intended to cure administrative error, prevent unintended refunds and revenue loss, and clarify conformity	Curative and rational public purposes established; weight favors upholding retroactivity

Key Cases Cited

James Sq. Assoc. LP v. Mullen, 21 N.Y.3d 233 (N.Y. 2013) (articulates balancing test for retroactive tax validity: reliance, retroactive length, public purpose)
Matter of Replan Dev. v. Dep’t of Hous. Preserv. & Dev., 70 N.Y.2d 451 (N.Y. 1987) (factors for determining when retroactive tax is "harsh and oppressive")
United States v. Carlton, 512 U.S. 26 (U.S. 1994) (retroactive tax valid if justified by rational legislative purpose; lack of vested right in tax statute)
Matter of Varrington Corp. v. City of N.Y. Dep’t of Fin., 85 N.Y.2d 28 (N.Y. 1995) (upheld retroactive curative tax measure despite taxpayer obtaining refunds under a temporary departure from long-standing policy)
Matter of Chrysler Props. v. Morris, 23 N.Y.2d 515 (N.Y. 1969) (discusses permissible retroactivity durations in tax context)
Welch v. Henry, 305 U.S. 134 (U.S. 1938) (principle that taxation is allocation of government costs among beneficiaries)