Maryland Child Support Calculator (2025)

Estimate your Maryland child support obligation using the Income Shares model under Family Law Section 12-204. Enter both parents' adjusted actual income, number of children, and expenses for a guideline estimate.

Income Shares Model Free & Instant 2025 Guidelines
Updated 2025 — Maryland FL §12-204 Guidelines

Maryland Child Support Calculator

Uses Maryland Income Shares model — FL §12-204 adjusted actual income


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Maryland Guideline Child Support Estimate
$0 / month
Income Shares Model — FL §12-204
Calculation Breakdown
Payment Summary
Monthly Support$0
Annual Support$0
Weekly Equivalent$0
This estimate is based on Maryland child support guidelines and is for informational purposes only. Actual court-ordered support may differ. Consult a Maryland family law attorney for accurate calculations.

How Maryland Calculates Child Support

Maryland uses the Income Shares model for calculating child support, governed by the Family Law Article, Section 12-204 of the Maryland Code. This model ensures that children receive the same proportion of parental income they would have received if the parents lived together. Maryland's guidelines are among the most detailed in the nation, with specific provisions for different custody arrangements.

The Maryland calculation starts with each parent's adjusted actual income. This is gross income from all sources minus allowable deductions including taxes, mandatory retirement, health insurance premiums, alimony paid, and child support paid for other children. The two adjusted actual incomes are combined and used with the Maryland Child Support Guidelines Schedule to determine the basic child support obligation.

Maryland has three different worksheets depending on the custody arrangement: Worksheet A for sole physical custody, Worksheet B for shared physical custody (128+ overnights each), and Worksheet C for split custody. Each worksheet uses the same basic schedule but applies different formulas to account for the specific custody arrangement.

Key Features of Maryland's System

Maryland's system has several distinctive aspects. The state applies a shared custody threshold of 128 overnights per year (approximately 35%). When both parents meet this threshold, the shared custody worksheet multiplies the basic obligation by 1.5 and offsets each parent's share. Maryland also specifically addresses the treatment of voluntary impoverishment, where a parent deliberately reduces their income to lower their child support obligation.

The guidelines apply to combined adjusted actual incomes up to $30,000 per month. For incomes exceeding this amount, the court has discretion to determine an appropriate award based on the needs of the child and the parents' ability to pay. This is one of the higher schedule caps among US states.

Understanding Maryland FL Section 12-204

Family Law Article Section 12-204 establishes the child support guidelines schedule that Maryland courts must follow. The statute provides the basic child support obligation table based on combined adjusted actual income and number of children, covering incomes from very low levels up to $30,000 per month combined.

  • FL 12-201: Definitions of income, adjusted actual income, and basic support obligation
  • FL 12-202: Income considerations and how to calculate adjusted actual income
  • FL 12-204: The guidelines schedule (basic obligation table)
  • FL 12-204.1: Shared physical custody provisions
  • FL 12-204.2: Split custody provisions
  • FL 12-202.1: Voluntary impoverishment provisions

Adjusted Actual Income in Maryland

Maryland uses the concept of adjusted actual income rather than simple gross income. This is calculated by starting with gross income from all sources and subtracting specific deductions.

Income Sources

  • Wages, salaries, commissions, bonuses
  • Self-employment income
  • Social Security benefits, pensions
  • Workers' compensation, unemployment
  • Disability payments
  • Interest, dividends, rental income
  • Alimony received
  • Capital gains, trust income
Maryland Child Support Formula (FL 12-204)
Adjusted Actual Income = Gross Income - (Taxes + FICA + Health Ins + Prior CS + Alimony Paid)

Combined adjusted actual income used to look up basic obligation from the schedule

The Maryland Child Support Schedule

Combined Monthly Income 1 Child 2 Children 3 Children 4 Children 5 Children
$800$198$302$350$384$410
$1,500$310$473$548$601$642
$2,500$452$690$799$877$937
$3,500$571$871$1,010$1,108$1,184
$5,000$720$1,098$1,273$1,397$1,493
$7,000$888$1,355$1,570$1,724$1,842
$10,000$1,132$1,727$2,002$2,198$2,348
$12,500$1,316$2,008$2,328$2,555$2,730
$15,000$1,475$2,250$2,608$2,863$3,059
$20,000$1,750$2,670$3,095$3,397$3,629

Note: Simplified excerpt. Maryland's actual schedule extends to $30,000/month combined income with many more increments.

Shared Physical Custody in Maryland

Maryland applies a shared physical custody formula (Worksheet B) when each parent has at least 128 overnights per year with the children. The basic obligation is multiplied by 1.5 to account for the duplicated costs of maintaining two households. Each parent's share is calculated based on their income percentage, and the obligations are offset. The parent with the higher obligation pays the difference.

The 128-overnight threshold is strictly applied in Maryland. If one parent has 127 overnights, the sole custody worksheet applies. Courts count scheduled overnights from the custody order, not necessarily actual overnights exercised.

When Courts Deviate from Maryland Guidelines

Maryland courts may deviate when the guidelines amount would be unjust or inappropriate, considering:

  • Extraordinary medical expenses
  • Educational expenses (private school, special needs)
  • Travel expenses for visitation
  • Income above schedule maximum ($30,000/month combined)
  • Child's independent financial resources
  • Voluntary impoverishment by either parent
  • Agreements between parents

How to Modify Child Support in Maryland

Maryland allows modification upon showing a material change in circumstances. While Maryland does not specify a percentage threshold like some states, courts generally consider changes significant enough to warrant recalculation. Common grounds include income changes, custody changes, changes in insurance or childcare costs, and a child aging out. File a motion in the circuit court that issued the original order. The Maryland Child Support Administration (CSA) can assist with modifications for cases in the IV-D program.

Enforcement of Maryland Child Support

Maryland enforces child support through the Child Support Administration (CSA). Tools include income withholding, tax interception, license suspension, contempt proceedings, property liens, credit reporting, passport denial, and financial institution data matching. Maryland also suspends vehicle registrations for non-payment.

Maryland Child Support and Taxes

Under federal and Maryland state tax law, child support is neither taxable to the recipient nor deductible by the payer. Maryland follows federal treatment for dependency exemptions, child tax credits, and EITC eligibility. Maryland's state income tax brackets apply independently of child support obligations.

Frequently Asked Questions

How does Maryland calculate child support?
Maryland uses the Income Shares model under FL 12-204. Both parents' adjusted actual incomes are combined and used to look up the basic obligation. Each parent pays proportionally. Health insurance, childcare, and extraordinary expenses are added. Three worksheets exist for sole, shared, and split custody.
What is adjusted actual income in Maryland?
Maryland's adjusted actual income is gross income from all sources minus taxes, FICA, mandatory retirement, health insurance premiums, alimony paid, and child support paid for other children. This forms the basis of the child support calculation.
How does shared custody affect Maryland child support?
When each parent has 128+ overnights per year, the shared custody formula applies. The basic obligation is multiplied by 1.5 and offset between parents. The parent with the higher obligation pays the difference.
What is voluntary impoverishment in Maryland?
If a parent deliberately reduces income to lower child support, Maryland courts can impute income based on the parent's potential earning capacity. Factors include education, work history, health, and available jobs.
How do I modify child support in Maryland?
File a motion in the circuit court showing a material change in circumstances. Common grounds include significant income changes, custody modifications, and changes in expenses. The CSA can assist with IV-D cases.
Until what age is child support paid in Maryland?
Maryland child support continues until the child turns 18, or age 19 if still in high school. Maryland does not generally require college support through child support unless parents agree.
What happens if a parent does not pay in Maryland?
Maryland enforces through income withholding, tax interception, license and vehicle registration suspension, contempt, property liens, credit reporting, passport denial, and bank account seizure.

Other State Child Support Calculators

Child support laws vary significantly from state to state. If you need to calculate child support for a different state, use one of our other state-specific calculators:

Legal Disclaimer: This calculator provides estimates based on Maryland child support guidelines and is for informational purposes only. It does not constitute legal advice and should not be relied upon for legal decisions. Child support calculations involve many factors that this simplified calculator cannot fully account for. Always consult with a qualified Maryland family law attorney for accurate child support calculations. Fine Content Limited is not a law firm and does not provide legal services.