N.J. Stat. § 54A:5-19: Income sourced, Corporation Business Tax Act, New Jersey Gross Income Tax Act, business conducted partly within, without State.

13. a. For the purposes of the "New Jersey Gross Income Tax Act," N.J.S.54A:1-1 et seq., for taxable years beginning on and after January 1, 2023, notwithstanding any provision in N.J.S.54A:1-1 et seq. or the Corporation Business Tax Act (1945), P.L.1945, c.162 (C.54:10A-1 et seq.) to the contrary, a taxpayer that is subject to the provisions of N.J.S.54A:1-1 et seq. and engages in a trade or business, regardless of business form, or is a partner in a partnership or shareholder of an S corporation, which trade, business, partnership, or S corporation conducts business operations partly within and partly without this State and, as a result thereof or for other reasons that portion of the income from sources within the State cannot readily or accurately be ascertained, the income from the trade, business, partnership, or S corporation shall be sourced in a manner consistent with the provisions of sections 6 through 10 of the Corporation Business Tax Act (1945), P.L.1945, c.162 (C.54:10A-6 through C.54:10A-10). Income that is representative of the taxpayer's salary, wages, tips, fees, commissions, bonuses, and other remuneration shall be sourced pursuant to the provisions of N.J.S.54A:1-1 et seq.

b. The director shall promulgate rules and regulations necessary to carry out the provisions of this section.

L.2023, c.96, s.13.