Illinois Child Support Calculator
*
Number of Overnights*
Parent with majority physical custody: must be between 183 and 365.
Common Child Custody Arrangements:
  • 50/50: 183
  • 60/40: 219
  • 70/30: 274
  • 80/20: 292
  • 4-3 schedule: 208
  • Every Weekend: 219
CP
NCP
Gross Monthly Income
Your Gross Monthly Income*
$
Other Parent's Gross Monthly Income*
$
Custodial Parent
Non Custodial Parent
Custodial Parent
Non Custodial Parent
Custodial Parent
Non Custodial Parent
Custodial Parent
Non Custodial Parent
Custodial Parent
Non Custodial Parent
Custodial Parent
Non Custodial Parent
Custodial Parent
Non Custodial Parent
Custodial Parent
Non Custodial Parent
Custodial Parent
Non Custodial Parent
Custodial Parent
Non Custodial Parent
Custodial Parent
Non Custodial Parent
Custodial Parent
Non Custodial Parent
Estimated Child Support Obligation
Your Obligation:
$
Other Parent's Obligation:
$