OPINION OF THE COURT
Petitioner Christopher H. Lunding (hereinafter Lunding), a partner in a New York City law firm, derived substantial income in this State during 1990 from his practice of the legal profession. As Connecticut residents, petitioners timely filed a joint nonresident New York State personal income tax return.
Thereon, petitioners included $108,000 of alimony reported to have been paid during the relevant time by Lunding to his former spouse, also a Connecticut resident. Concluding that 48.0868% of such alimony, equaling $51,934, represented the amount of business income derived from or connected with this State, petitioners sought a deduction on their tax return for that portion of alimony. In March 1992, the Audit Division of the Department of Taxation and Finance (hereinafter the Division) disallowed the $51,934 deduction and issued a notice of deficiency to petitioners on the basis of Tax Law § 631 (b) (6),
Petitioners administratively appealed the determination, alleging that Tax Law § 631 (b) (6) violates the Privileges and Immunities Clause (US Const, art IV, § 2), the Equal Protection Clause (US Const 14th Amend) and the Commerce Clause (US Const, art I, § 8).
As a proceeding commenced pursuant to CPLR article 78 is not the proper vehicle to challenge the constitutionality of a statute (see, Press v County of Monroe,
Addressing the challenge to Tax Law § 631 (b) (6) as being violative of the Privileges and Immunities Clause because only nonresident taxpayers are denied the alimony deduction (see, Tax Law § 631 [b] [6]), we follow our decision in Matter of Friedsam v State Tax Commn. (
The Court of Appeals affirmed our decision on statutory, not constitutional, grounds (see, Matter of Friedsam v State Tax Commn.,
We find that the addition of Tax Law § 631 (b) (6) to expressly authorize the denial of the alimony deduction to nonresidents does not alter or undermine our previous findings concerning the constitutionality of such practice (see, Matter of Friedsam v State Tax Commn.,
Our examination of the legislative history behind Tax Law § 631 (b) (6) reveals no stated reason or discussion addressing the rationale underlying a denial to only nonresidents of the alimony deduction authorized by the Internal Revenue Code (see, 26 USC § 215) in proportion with their New York income (see, L 1987, ch 28; Governor’s Annual Message, 1987 NY Legis Ann, at 2-3; Governor’s Approval Mem, 1987 NY Legis Ann, at 59; Mem of Senate Sponsor, 1987 NY Legis Ann, at 58-59; accord, Matter of Friedsam v State Tax Commn.,
Mikola,, J. P., Mercure, Yesawich Jr. and Spain, JJ., concur.
Adjudged that the proceeding is partially converted to an action for declaratory judgment, it is declared that Tax Law § 631 (b) (6) is unconstitutional, remainder of petition is granted, with costs, and determination of respondent Tax Appeals Tribunal is annulled.
Notes
. Petitioners acknowledge that for the purpose of appeal, should Tax Law § 631 (b) (6) be found constitutional, they owe the disputed amount.
. The determination of the former State Tax Commission was therefore annulled (Matter of Friedsam. v State Tax Commn., supra, at 29).
