Estimate monthly child support payments based on income shares
Most states use the "income shares" model, which calculates support based on both parents' combined income and their respective shares. The non-custodial parent typically pays their share to the custodial parent.
Formula
Support = Combined Income × Support Percentage × Non-Custodial Share
If combined income is $100,000 with 25% guideline for 2 children ($25,000) and non-custodial parent earns 60%: Support = $25,000 × 60% = $15,000/year = $1,250/month.
These calculations are estimates. State laws are complex—get professional advice for accurate amounts.
Keep records of all income, expenses, and payments. Documentation is crucial for modifications.
Use state disbursement units or documented methods to create payment records.
Circumstances change. Review support arrangements annually or when major changes occur.
Estimate support obligations during separation discussions.
Plan finances around expected support payments or receipts.
Estimate new amounts when circumstances change.
Understand guidelines before negotiating agreements.
Each state has guidelines based on parents' incomes, number of children, custody arrangement, healthcare costs, and childcare expenses. Courts can deviate for special circumstances.
Yes, significantly. Some states use income shares (most), others use percentage of income, and some use hybrid models. Always check your state's specific guidelines.
More overnights with the non-custodial parent typically reduces support. Many states use formulas that credit time spent (e.g., over 110 overnights/year triggers adjustments).
Wages, bonuses, commissions, self-employment, investments, rental income, and sometimes imputed income if voluntarily unemployed/underemployed.
Yes, with "material change in circumstances"—job loss, significant income change, or change in custody. Modifications usually require court approval.
Typically until age 18, or 19-21 if the child is in college (varies by state). Special needs children may require support indefinitely.