Self-Employed Child Support Calculator

Calculate how courts adjust self-employment income for child support purposes. See the difference between reported business income and the court-adjusted income that includes depreciation add-backs and personal expenses run through the business.

Business Income
$
Total annual revenue before any deductions
$
Actual, necessary operating costs
Court Adjustments
$
Non-cash depreciation courts may add back
$
Car payments, meals, travel, etc.
Deductions & Other Income
$
$
$
Most states use the Income Shares model
Estimated Monthly Support (Adjusted Income)
$3,953
Based on court-adjusted annual income of $197,000
Support on Reported Income$3,323
Monthly Difference$630
Annual Difference$7,560
Reported Annual Net$170,000
Adjusted Annual Net$197,000
Reported vs. Court-Adjusted Income
Reported Income
Annual Net$170,000
Monthly Support$3,323
Annual Support$39,876
Court-Adjusted Income
Annual Net$197,000
Monthly Support$3,953
Annual Support$47,436
Business Income Breakdown
ComponentAmount
Gross Business Revenue$250,000
(-) Claimed Business Expenses-$80,000
= Reported Net Income$170,000
(+) Depreciation Add-Backs+$15,000
(+) Personal Expenses Through Business+$12,000
= Court-Adjusted Net Income$197,000
Income Components Comparison
ReportedAdjustedDepr. A...Personal
Common Deductions Courts Scrutinize: Courts routinely add back excessive depreciation, personal vehicle expenses run through the business, meals and entertainment, personal travel, home office deductions that overlap with living expenses, family member salaries that may be inflated, and one-time capital expenditures timed to reduce income before a support hearing.
Self-Employment Tax Consideration: Self-employed individuals pay both the employer and employee portions of Social Security and Medicare taxes (15.3% on net earnings up to the Social Security wage base). Courts may allow a deduction for the employer-equivalent portion (7.65%) when calculating income available for support.
Disclaimer: This calculator provides estimates only and does not constitute legal advice. Family law varies significantly by jurisdiction. Results are based on general guidelines and may not reflect your specific circumstances. Always consult a qualified family law attorney for advice specific to your situation.

How Courts Calculate Self-Employed Income for Child Support

When a parent is self-employed, calculating income for child support is more complex than with a salaried employee. Courts look beyond the net income reported on tax returns because self-employed individuals have significant control over how they report income and expenses. The goal is to determine the parent's true earning capacity and available income.

Courts start with gross business revenue and then scrutinize every deduction. Legitimate, necessary business expenses are allowed, but non-cash deductions like depreciation and personal expenses paid through the business are often added back to income. This results in a higher adjusted income figure that more accurately reflects the parent's ability to pay support.

Common Deductions Courts Add Back

Family courts routinely adjust self-employment income by adding back expenses that reduce reported income but do not actually reduce the parent's available cash. These include:

  • Depreciation — A non-cash expense that reduces taxable income but does not represent an actual out-of-pocket cost in the current period.
  • Vehicle expenses — Personal use of a company vehicle, including payments, insurance, and fuel for non-business travel.
  • Meals and entertainment — Personal dining and entertainment expenses claimed as business costs.
  • Travel — Personal vacations or trips that combine minimal business activity with extensive personal time.
  • Family employee salaries — Payments to relatives who may not perform actual work or are paid above market rates.
  • Home office deductions — When the home office deduction overlaps with personal housing costs.
  • Excessive owner benefits — Health club memberships, personal insurance, and other perks paid by the business.

Proving Self-Employment Income in Court

If you suspect the other parent is underreporting income, you may need to subpoena bank statements, credit card records, and business financial records. A forensic accountant can analyze lifestyle spending versus reported income to identify discrepancies. Courts may also impute income based on the parent's education, work history, and earning capacity if they find reported income unreasonably low.

Related Calculators

This website provides estimates for informational purposes only. This is not legal advice. Consult a qualified family law attorney for guidance specific to your situation.