When Can You Modify Child Support in Maryland?

Child support orders can change when the circumstances are right. Things like job changes, life shifts, or changes in custody might necessitate a child support modification. Maryland law lets parents request a modification of child support, but they have to do so for the right reasons. Understanding when this might be appropriate can be complicated, but you can be confident in how you do it when you have a skilled lawyer at your side. 

At RPM Law, our Maryland family law attorneys help you seek a modification of child support, or defend against a request for one when the circumstances aren’t appropriate for it. We’re here to help you and your family achieve the right result.        

Maryland Requires a “Material Change in Circumstances”

To get a change to a child support order, you’ll have to show a material change in circumstances has happened since the last order.

The change must be:

• Substantial: Not minor or temporary
• Relevant to child support: Affecting income, expenses, or parenting time
• Unanticipated: Not something the court already considered

Common Reasons Child Support Can Be Modified

Maryland courts regularly grant modifications when one or more of the following occurs.

1. Significant Change in Income

A major shift in either parent’s income is one of the most common reasons for modification. Examples include:

• Job loss 
• Involuntary reduction in hours
• Substantial raise or promotion
• Disability or long-term medical condition affecting ability to work
• Business downturn for self-employed parents

Maryland courts do not modify support for voluntary underemployment. If a parent quits a job or reduces hours without good cause, the court may “impute” income based on earning capacity.

2. Change in the Child’s Needs

Children have needs, and those needs can change. Modifications may be appropriate when:

• A child develops special medical, educational, or therapeutic needs
• Childcare costs increase significantly
• A child begins or ends private school
• Insurance or healthcare expenses change

3. Change in Parenting Time or Custody

Child support may be significantly affected by how much time a parent has with each child. A modification may be warranted when:

• Parenting time shifts substantially
• One parent becomes the primary residential parent
• Shared physical custody transitions to sole custody, or vice versa

Even informal schedule changes, if long-standing and substantial, can justify recalculating support.

4. Changes in Childcare or Health Insurance Costs

Maryland’s Child Support Guidelines include:

• Work-related childcare
• Health insurance premiums
• Extraordinary medical expenses

5. A Child Turns 18 or Graduates High School

In Maryland, child support typically ends when a child:

• Turns 18 and
• Graduates high school

If a child turns 18 before graduation, support continues until the end of the school year. When one child ages out but others remain eligible, the order may need recalculation.

When Maryland Courts Will Not Modify Child Support

Not every change qualifies. Courts generally deny modification when:

• The change is minor or temporary
• A parent voluntarily reduces income
• The change was anticipated at the time of the last order
• The parent seeking modification cannot show documentation

How the Modification Process Works

Parents can request modification through:

• A court petition
• The Maryland Child Support Administration (CSA)

Once someone files a petition, the court will:

1. Determine whether a material change in circumstances exists
2. Recalculate support using updated financial information
3. Issue a new order if modification is justified

Temporary vs. Permanent Changes

Maryland courts distinguish between:

• Temporary Changes: Short-term layoffs, brief medical leave, seasonal income dips
• Permanent or Long-Term Changes: Disability, long-term unemployment, major salary shifts

Temporary changes rarely justify modification unless they significantly impact the child’s well-being.

What If Parents Agree to Modify Support?

Parents may agree to adjust child support, but the agreement must be:

• Put in writing
• Submitted to the court
• Approved by a judge

Private agreements are not enforceable unless incorporated into a court order.

Get Help With Child Support Modifications in Maryland

You can modify child support orders if there is a material change in circumstances. Knowing when this applies, and what to do about it, can be challenging on our own. Luckily, you have access to a skilled family law attorney to help.

Our team at RPM Law are ready to help with your family law needs. Contact us today for a consultation.