For each taxpayer, $650.00; for the taxpayer's spouse, if taxpayer does not file a joint return and if such spouse has no gross income for the eligibility year and is not a dependent of another taxpayer, an additional $650.00; for each taxpayer who is at least 65 years of age or over at the close of his taxable year, an additional $650.00, and for taxpayer's spouse under the same conditions and if the initial $650.00 exemption is allowable, an additional $650.00; for each taxpayer who is blind at the close of his taxable year, an additional $650.00, and for taxpayer's spouse under the same conditions and if the initial $650.00 exemption is allowable, an additional $650.00. Blindness shall be deemed to exist when central visual acuity in the better eye does not exceed 20/200 with correcting lenses, or when the widest diameter of the visual field subtends an angle of not more than 20 degrees;
For each dependent whose entire gross income for the eligibility year is less than $750.00, or who is taxpayer's child or stepchild and has not attained age 19 at the close of the eligibility year or is a student: $650.00.
For taxable years beginning in 1979, such exemption shall be $700.00, for taxable years beginning in 1980 such exemption shall be $750.00, and for taxable years beginning in 1982 and thereafter such exemption shall be $800.00.
With respect to all taxable years beginning on or after January 1, 1973, if (1) the taxpayer's gross income as defined in section 7 of P.L. 1961, c. 32 (C. 54:8A-7), is exceeded by (2) his entire gross income by more than $100.00, his exemptions allowed in this section shall be limited by the percentage which (1) is of (2). The manner for determining a taxpayer's entire gross income shall be provided by regulation. Such regulations may authorize the use of federal adjusted gross income for this purpose.
N.J.S. § 54:8A-10