How is child support calculated?

Child support is calculated using each state's specific formula, which typically considers both parents' gross monthly income, the number of children, and the custody arrangement. Most states use an Income Shares model or a Percentage of Income model.

Is this child support calculator accurate?

This calculator provides an estimate based on publicly available state guidelines. Actual court-ordered child support may differ based on deductions, special expenses, imputed income, and judicial discretion. Always consult a family law attorney for legal advice.

Which states does this calculator support?

SupportByState.com supports child support calculations for all 50 states using each state's current guidelines.

Is child support taxable income?

No. Child support payments are not taxable income for the recipient and are not tax-deductible for the paying parent under current IRS rules.

Are these calculators free?

Yes — all calculators on SupportByState.com are completely free to use. No registration, no email required, and no data is stored on our servers. PDF download is also free on all result pages.

How current are the guidelines?

Our calculators are updated to reflect 2026 guidelines, including the latest income schedules, statutory caps, tax rates, and federal minimum wage figures used in garnishment calculations. We update them annually and whenever significant mid-year changes occur.

Can I use these results in court?

Calculator results are estimates intended for planning and informational purposes. They are not legal advice and do not constitute a court order. We recommend sharing your estimate with a family law attorney before using it in any legal proceeding or negotiation.

Which calculator should I use for my situation?

Use the Child Support Calculator if you need to estimate monthly support payments. Use the Alimony Calculator for spousal support estimates. Use the Divorce Cost Calculator to understand total expenses. Use the Wage Garnishment Calculator if you're facing debt collection. Use the SSDI Calculator if disability income is involved. Use the Military Divorce Calculator for service members and veterans.

How do I find my state's child support formula?

Every state's formula, statute, and key parameters are listed in our State Child Support Calculator section. Select your state to see the formula type (Income Shares, Percentage of Income, or Melson Formula), the governing statute, the shared custody overnight threshold, and a plain-English explanation of how the calculation works.

All Free Family Law Calculators — 50 States, 2026 Guidelines

SupportByState.com provides free child support, alimony, divorce cost, custody, wage garnishment, SSDI, military divorce, and VA disability calculators for all 50 states — every calculator uses current 2026 statutory formulas and is updated annually.

Our calculators are updated annually to reflect changes in state guidelines, income schedule updates, statutory cap adjustments, and federal rule changes. We also track major court decisions that affect the interpretation of state child support formulas — such as how military BAH is treated, whether SSDI auxiliary benefits offset obligations, and how VA disability compensation is counted as income. All results include a line-item breakdown so you understand exactly how the calculation was performed.

Every calculator is completely free, requires no registration, and stores no personal data in our systems. Your inputs stay in your browser. PDF export is available on all result pages. For advice specific to your situation, we recommend consulting a licensed family law attorney in your state — our Find an Attorney page connects you with attorneys who work with families on these exact issues.

Available Calculators

Calculator	What It Does	Coverage
Child Support Calculator	Monthly obligation using each state's statutory formula	All 50 states
Alimony / Spousal Support	Spousal support estimate based on income and marriage length	All 50 states
Divorce Cost Estimator	Total divorce costs by case type and state	All 50 states
Child Custody Agreement Builder	Comprehensive parenting plan template	All 50 states
Wage Garnishment Calculator	How much of your paycheck can be legally withheld	All 50 states
SSDI & Child Support	How disability income affects child support obligations	All 50 states
Military Divorce Calculator	Military retirement pay division and BAH income	All 50 states
VA Disability & Alimony	How VA pay affects alimony and support calculations	All 50 states

Frequently Asked Questions

Are these calculators free?: Yes — all calculators on SupportByState.com are completely free to use. No registration, no email required, and no data is stored on our servers. PDF download is also free on all result pages.
How current are the guidelines?: Our calculators are updated to reflect 2026 guidelines, including the latest income schedules, statutory caps, tax rates, and federal minimum wage figures used in garnishment calculations. We update them annually and whenever significant mid-year changes occur.
Can I use these results in court?: Calculator results are estimates intended for planning and informational purposes. They are not legal advice and do not constitute a court order. We recommend sharing your estimate with a family law attorney before using it in any legal proceeding or negotiation.
Which calculator should I use for my situation?: Use the Child Support Calculator if you need to estimate monthly support payments. Use the Alimony Calculator for spousal support estimates. Use the Divorce Cost Calculator to understand total expenses. Use the Wage Garnishment Calculator if you're facing debt collection. Use the SSDI Calculator if disability income is involved. Use the Military Divorce Calculator for service members and veterans.
How do I find my state's child support formula?: Every state's formula, statute, and key parameters are listed in our State Child Support Calculator section. Select your state to see the formula type (Income Shares, Percentage of Income, or Melson Formula), the governing statute, the shared custody overnight threshold, and a plain-English explanation of how the calculation works.

All Free Family Law Calculators — 50 States, 2026 Guidelines

Available Calculators

Frequently Asked Questions

Related Resources