The complete text and charts of the Guidelines is more than 100 pages (in full-size type). In New Jersey, the Guidelines are set by Court Rule. The Rule number is 5:6A (the actual charts are an Appendix to the Rule, in the back of the Court Rules Book). Most major libraries in the State have a copy that you can read or photocopy. All law libraries in the courthouses have public copies. The Guidelines are also available on the Internet at NJ Child Support Guidelines.
The tax calculation method is assumed to be IX-H. If the Gross Taxable Income of the CP or NCP includes non-FICA or business income items, then the calculated amount will not include accurate taxation. You must run a full guideline to get the proper amount.