Worksheet for Determining Support - Misc expenses

Yes. Costs such as car insurance, cell phone, and snacks/entertainment can be included in the calculation for support. For example, car insurance and entertainment can be considered part of travel and recreation expenses. Cell phone costs or purchases for things in his room may be considered a personal necessity. 

See the following to assist in determining support:

IRS Worksheet 2

In order to claim your son as a qualifying child, 

• The child must be: (a) under age 19 at the end of the year and
  younger than you (or your spouse, if filing jointly), (b) under age
  24 at the end of the year, a full-time student, and younger than
  you (or your spouse, if filing jointly), or (c) any age if permanently
  and totally disabled.
• The child must have lived with you for more than half of the year - education is considered a temporary absence. So if the child is away at college, they are considered to have lived with you.
• The child must not have provided more than half of his or her own
  support for the year.

Rules for Claiming Dependents on Taxes

@AndrewA87 
 

Thanks!

I assume that includes his cell phone carrier monthly plan bill.

Yes it does!