will the cost of the cell phone be deducted from child support?

If you are the parent with whom the child primarily resides, you are entitled to receive child support. The amount of child support payable is mandated by the Child Support Guidelines and is based on the pay​e​r's annual income and the number of children. In addition to this table support, "special" or "extraordinary" expenses are expenses that fall outside the scope of basic child support and are payable in addition to guideline support. While a cell phone expense is not typically considered a special expense, parties can agree to share the cost of such expense, in addition to regular guideline child support. Although your question was directed specifically to the issue of the child's cell phone, it appears that there may be other issues relating to child support and special expenses that I would recommend you discuss in greater detail with a lawyer, namely child support for a​ ​child over the age of majority and the payments your ex is making towards a vehicle for the child.