Boston is the capital of Massachusetts. It is also the state’s largest city. It lies at the center of a large metropolitan area with families working across many industries and income levels.
Child support in Boston is determined under Massachusetts law and the statewide Child Support Guidelines, not a separate Boston formula. The current 2025 Guidelines took effect on December 1, 2025, and generally apply to child-support orders and judgments entered on or after that date.
Parents may benefit from speaking with child support lawyers serving the Boston area when income, parenting time, or other circumstances make the calculation complicated.
How Is Child Support Calculated?
Massachusetts courts start with the statewide Child Support Guidelines. The calculation can consider:
- Each parent’s gross income
- Number of children
- Parenting arrangements
- Child-care expenses
- Health insurance costs
- Certain deductions
- Other support obligations
- Certain benefits and income sources
The guidelines apply up to a combined annual available gross income of $450,000. Income above that amount may require additional analysis.
Which Parent Pays?
Either parent can be ordered to pay. Gender, marital status, or simply being the parent with less parenting time does not automatically determine the obligation.
In many cases, the parent who has less day-to-day parenting time pays support, but the court considers the complete financial and parenting picture.
Child Support and Custody Are Separate
Child support and parenting time are legally separate issues. A parent generally cannot stop paying support because the other parent is withholding parenting time. Likewise, parenting time should not be withheld because support has gone unpaid.
Health Insurance and Medical Expenses
Child support orders can address health insurance and medical expenses. Under Mass. Gen. Laws c. 208, § 28, courts may make provisions for a child’s support, education, and health insurance.
Parents may also need to share uninsured medical, dental, vision, therapy, or other necessary expenses. Keep records of premiums, bills, receipts, and reimbursement requests.
When Does Child Support End?
Support does not necessarily end automatically when a child turns 18. Depending on the circumstances, Massachusetts courts may order support for:
- A child ages 18 to 21 who lives with a parent and remains principally dependent on that parent.
- A child ages 21 to 23 who meets the dependency requirements and is enrolled in an educational program.
Can Support Be Modified?
Yes. A parent may seek modification after a material and substantial change in circumstances, such as:
- Job loss or a major income change
- Significant changes in parenting time
- Increased child-care or health-care costs
- A new support obligation
- Changes affecting the child’s eligibility or needs
Under Mass. Gen. Laws c. 208, § 28A, courts may issue temporary orders during certain modification proceedings. Until an order is changed, simply reducing or stopping payments can cause arrears to accumulate.
What Happens If Support Is Not Paid?
Unpaid support can lead to enforcement action. Depending on the circumstances, consequences may include income withholding, tax-refund interception, license-related penalties, or contempt proceedings.
Payment histories, bank statements, wage records, and written communications can help establish what was paid and what remains outstanding.
What If a Parent Is Unemployed?
Unemployment does not automatically eliminate child support. A court may examine whether someone is genuinely unable to work, temporarily unemployed, underemployed, or voluntarily earning less than they reasonably could.
Work history, education, job-search efforts, caregiving responsibilities, and other circumstances may affect the analysis.
Final Takeaways
- Boston follows Massachusetts’ statewide Child Support Guidelines.
- Income and parenting arrangements are central to the calculation.
- Either parent may be ordered to pay support.
- Child support and parenting time are separate obligations.
- Health-care and child-care expenses can affect support.
- Support may continue beyond age 18 in certain circumstances.
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