Child Support Calculator by State
Calculate child support payments in 60 seconds using official 2026 state guidelines for all 50 states
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Enter your information to calculate child support
Fill out the form to get state-specific estimates
How Child Support is Calculated
Income Shares Model
Used by 40 states. Estimates what parents would spend on children if together, then divides proportionally by income. States: CA, NY, FL, PA, OH, IL, and 34 others.
Percentage of Obligor Model
Used by 8 states. Applies flat percentage of non-custodial parent's income. States: TX, WI, AR, MS, ND, NV, AK, and DC.
Additional Expenses Beyond Base Support
Healthcare Costs
Health insurance premiums, uninsured medical expenses, dental, and vision care are typically split proportionally.
Childcare & Education
Daycare, after-school care, summer camps, and work-related childcare costs are usually added to base support.
Extracurriculars
Sports, music lessons, tutoring may be split separately by agreement or court order, especially for high-income families.
Plan Your Custody & Support Strategy
Splitifi helps you organize custody schedules, track expenses, and plan for child support