N.J. Admin. Code § 18:7-8.16
Any banking corporation, having an international banking facility, which maintains a regular place of business (other than a statutory office) outside New Jersey, which elects to take the deduction from entire net income provided by N.J.A.C. 18:7-5.2(a)2 vii, shall complete the allocation factor under this subchapter in the usual way. For the purpose of allocation, however, all amounts attributable, directly or indirectly, to the production of the eligible net income of an international banking facility as defined in N.J.S.A. 54:10A-4(n), shall be included in both the numerator and denominator of the fractions described in this subchapter, whether or not such international banking facility income amounts are otherwise attributable to New Jersey.
N.J. Admin. Code § 18:7-8.16