About Child Support
Child support in the United States is administered state-by-state under the Title IV-D federal program, with every state required to operate a child support enforcement agency. These agencies establish paternity, locate non-custodial parents, calculate support obligations, and enforce payments through wage garnishment, tax refund intercepts, license suspension, and other civil enforcement tools. Support amounts are calculated using state-specific guidelines, most based on an income shares or percentage-of-income formula. Fathers paying support can request modifications when their income drops substantially or when circumstances change (job loss, additional children, disability). Fathers owed support can open a case with their state agency free of charge. This directory includes each state's child support agency, online calculators, local enforcement offices, and modification resources.
6 Resources
State Department of Revenue Child Support Services Division administers Massachusetts' child support program for all 14 counties: establishes paternity, sets support orders, enforces collection through wage withholding and license suspension, and processes modifications. Open a case online at cse.dor.state.ma.us or by phone; bring photo ID, the other parent's information, birth certificates, any prior orders, and recent pay stubs to interviews.
1-800-332-2733 · P.O. Box 9561, Boston, MA 02114 · Mon-Fri 8:45am-5pm · Visit Website
Official Massachusetts Trial Court child support guidelines worksheet and online calculator for estimating monthly obligations based on both parents' gross income, health insurance costs, childcare expenses, and parenting time. Used by parents, attorneys, and mediators as a starting point for support negotiations and required as an exhibit when filing in Probate & Family Court. Have recent pay stubs and childcare costs ready to use the tool accurately.
Online resource · Online 24/7 · Visit Website
Free plain-language guides explaining Massachusetts child support laws, how to request establishment, modification, and enforcement; how DOR cases work; and what to do if you cannot pay. Includes printable court forms, sample motions, and filing instructions for Probate & Family Court. Available statewide in English and Spanish. Have your prior court orders, pay stubs, and any DOR notices handy when using the self-help materials.
Online resource · Online 24/7 · Visit Website
State program helping unmarried parents establish legal paternity through Voluntary Acknowledgment of Parentage (signed at the hospital or later) or through court action when paternity is contested. Establishing paternity enables child support orders, custody and parenting time rights, medical history access, and inheritance. Call DOR or submit online; bring photo ID, the child's birth certificate, and the other parent's contact information.
1-800-332-2733 · Statewide service · Mon-Fri 8:45am-5pm · Visit Website
National resource providing interstate child support enforcement when the other parent lives in a different state or country. Massachusetts DOR coordinates with OCSS under UIFSA (Uniform Interstate Family Support Act) to establish and enforce orders across state lines. Parents with interstate cases should start with Massachusetts DOR; OCSS publishes resources, state contact lists, and enforcement tools on its website.
1-202-401-9373 · National resource · Mon-Fri 9am-5pm ET · Visit Website
Free legal help for low-income central and western Massachusetts parents in Worcester, Hampshire, Hampden, Franklin, and Berkshire Counties navigating child support establishment, modification, contempt, and enforcement. Apply by phone through the LegalAidLine or online; bring photo ID, proof of income (pay stubs, benefit letters), birth certificates, and any existing orders or DOR notices to your intake appointment.
855-252-5342 · 405 Main St, Suite 400, Worcester, MA 01608 · Mon-Fri 9am-5pm · Visit Website