If a petition of appeal or a complaint is filed on April 1 or during the 19 days next preceding April 1, a taxpayer or a taxing district shall have 20 days from the date of service of the petition or complaint to file a cross-petition of appeal with a county board of taxation or a counterclaim with the Tax Court, as appropriate.
If a petition of appeal is filed on January 15 or during the 19 days next preceding January 15, or a complaint is filed with the Tax Court on April 1 or during the 19 days next preceding April 1, a taxpayer or a taxing district shall have 20 days from the date of service of the petition or complaint to file a cross-petition of appeal with a county board of taxation or a counterclaim with the Tax Court, as appropriate.
Within 10 days of the completion of the bulk mailing of notification of assessment, the assessor of the taxing district shall file with the county board of taxation a certification setting forth the date on which the bulk mailing was completed. If a county board of taxation completes the bulk mailing of notification of assessment, the tax administrator of the county board of taxation shall within 10 days of the completion of the bulk mailing prepare and keep on file a certification setting forth the date on which the bulk mailing was completed. A taxpayer shall have 45 days to file an appeal upon the issuance of a notification of a change in assessment. An appeal to the Tax Court by one party in a case in which the Tax Court has jurisdiction shall establish jurisdiction over the entire matter in the Tax Court. All appeals to the Tax Court hereunder shall be in accordance with the provisions of the State Uniform Tax Procedure Law, R.S. 54:48-1 et seq.
N.J.S. § 54:3-21