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Child Support

Child support is a court-ordered payment intended to ensure children receive the financial support they need from both parents. In Massachusetts, support is determined based on income, expenses, and what’s in the best interest of the child.

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How Child Support Is Calculated

How Child Support Is Calculated

Massachusetts follows the “Income Shares” model to calculate child support. This approach estimates the cost of raising a child in a two-parent household and divides that amount between both parents based on their incomes.


Key factors include:

  • Gross income of both parents
  • Cost of childcare and health insurance
  • Number of children involved
  • Existing support obligations for other children
  • Extraordinary expenses such as educational or medical needs

The court uses official Child Support Guidelines to determine the amount, but adjustments can be made depending on unique family circumstances.

How Long Does Child Support Last?

The court reviews each situation individually, taking into account the child’s educational status, living arrangements, and level of financial dependence. We can help you understand how these rules apply to your case and pursue the appropriate support order.


In Massachusetts, child support typically continues until the child turns 18, but it can extend beyond that in certain situations:

Ages 18–21

Support may continue if the child is still living with a parent and is principally dependent on them for support.

Ages 21–23

Support may also extend if the child is enrolled in an undergraduate college program and remains financially dependent on a parent.

Frequently Asked Questions

Yes. You can request a modification if there’s been a significant change in income, employment, or your child’s needs.

The Massachusetts Department of Revenue (DOR) can enforce support through wage garnishment, license suspension, tax refund interception, or even court action.

Yes. Verbal or informal agreements are not enforceable. We can help you establish or formalize a child support order through the court.

Not until legal paternity is confirmed. We assist both mothers and fathers in establishing paternity as a first step in child support or custody cases.


Facing Child Support Decisions?

Facing Child Support Decisions?

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Law Offices of Robert W. Carpenter