Texas child support ends when the child turns 18 or graduates from high school, whichever happens later. That is the rule under Texas Family Code Section 154.001, and the phrase “whichever happens later” does most of the work. A child who graduates at 17 still receives support until turning 18. A child who is still enrolled in high school at 18 continues receiving support through graduation.

Here is the part that costs parents real money: support does not stop automatically. Wage withholding continues until someone files a motion and a court signs an order terminating it. Every month you wait after the obligation has legally ended is a month of payments you may struggle to get back.

What Events End a Texas Child Support Obligation?

Section 154.001(a) lists them. Support continues until one of these occurs:

  • The child turns 18 or graduates from high school, whichever is later
  • The child is emancipated through marriage, through removal of the disabilities of minority by court order, or by other operation of law
  • The child dies
  • Indefinitely, if the child is disabled as defined by Section 154.302

That last item is an exception rather than a termination event, and it is covered below.

A few clarifications that come up constantly:

  • Turning 18 is not enough if the child is still in high school
  • Dropping out is not an extension. A child who leaves school before 18 receives support until the 18th birthday, not beyond
  • College does not extend Texas child support. Unlike some states, Texas imposes no obligation to support a child through college. Parents can agree to it contractually, but a court will not order it
  • Remarriage of either parent does not end support
  • The other parent moving away does not end support

What Does “Graduation From High School” Actually Require?

Section 154.002 is specific, and it is stricter than parents assume.

For support to continue past the 18th birthday, the child must be:

  • Enrolled under Chapter 25 of the Education Code in an accredited secondary school in a program leading toward a high school diploma; or
  • Enrolled under Section 130.008 of the Education Code in courses for joint high school and junior college credit; or
  • Enrolled full time in a private secondary school in a program leading toward a diploma

and complying with the minimum attendance requirements of that program or school.

Two practical points:

  • The request for support through graduation may be filed before or after the child’s 18th birthday, under Section 154.002(b)
  • The order may provide that payments continue through the end of the month in which the child graduates, under Section 154.002(c)

Attendance is the element that gets litigated. A child technically enrolled but not meeting attendance requirements may not qualify, and obligors do challenge this.

When Does Child Support Continue Past 18 Indefinitely?

When the child is disabled, and Texas has a specific two-part definition.

Under Section 154.302, a court may order support for an indefinite period if the child:

  1. Requires substantial care and personal supervision because of a mental or physical disability and is not capable of self-support; and
  2. The disability existed, or the cause of the disability was known to exist, before the child’s 18th birthday

Both parts matter. A disability that first arises at 25 does not support an order under this section.

Where the money goes:

  • Support may be paid to the parent or guardian providing daily care
  • It may be paid directly to the adult child
  • It may be directed into a special needs trust, which is often the better structure because it protects eligibility for means-tested benefits

If your child has a qualifying disability, raise this before the 18th birthday. Establishing it prospectively is far cleaner than litigating it afterward.

Why Doesn’t Support Stop on Its Own?

Because an income withholding order is a standing directive to an employer, and the employer has no authority to stop on its own judgment.

The obligation and the withholding are separate things. Even when the legal duty has ended, the withholding order continues until it is modified or terminated. To stop it you generally need to:

  1. File a motion to terminate child support in the court that issued the order, with proof of the qualifying event, such as a graduation certificate or birth certificate
  2. Obtain a signed order terminating support and the income withholding
  3. Ensure the order reaches the employer, since withholding continues until payroll receives it
  4. If the Office of the Attorney General is involved, coordinate with the OAG as well

Recovering overpayments after the fact is possible but slow, and Section 154.012 addresses support paid in excess of the order. It is far easier to file early.

What Happens to Arrears?

They survive. This is the point that most surprises obligors.

Termination of the ongoing obligation does not erase unpaid support. Arrears remain enforceable, continue to accrue interest, and can be collected long after the child is an adult through wage garnishment, liens, license suspension, and contempt proceedings. Our guide on enforcing child support arrears covers collection mechanics.

So the withholding may continue past the termination date for a legitimate reason: it is being applied to a balance. Confirm which situation you are in before assuming there is an error.

What If You Have More Than One Child?

Support does not simply drop by the same amount for each child, and the order should already address this.

Section 154.127 requires that a child support order covering more than one child provide that, on termination of support for one child, support for the remaining children is set in accordance with the guidelines. If your order contains that language, the step-down happens according to the schedule in the order.

Because the guideline percentages are not proportional, the reduction is smaller than parents expect. Going from two children to one moves the guideline from 25% to 20% of net resources, not from 25% to 12.5%.

If your order lacks step-down language, you will need to file a modification when the oldest child ages out.

Texas Child Support Termination FAQs

Does child support end if my child joins the military?

Generally yes, on the date active service begins rather than the date of enlistment, as a form of emancipation.

Can support end early if my child is working full time?

No. Employment alone is not emancipation. Removal of the disabilities of minority requires a court order under Section 31.001.

What if my child moves in with me?

That is a change in circumstances supporting a modification, but it does not end the obligation on its own. Keep paying until an order changes it.

Do I still owe support if I lose contact with my child?

Yes. Section 154.011 provides that support is not conditioned on possession or access. Denied visitation is a separate enforcement issue.

Can we agree to end support early?

Any agreement must be approved by the court. An informal agreement does not stop arrears from accruing.

Ending Support the Right Way

Timing is the whole issue here.

  1. Calculate the actual termination date using the later of the 18th birthday or expected graduation
  2. Gather proof now, including the birth certificate and a graduation certificate or enrollment records
  3. File the motion to terminate before the date arrives, not after
  4. Verify the withholding order was sent to the employer, and follow up with payroll
  5. Confirm whether arrears exist, since continued withholding may be legitimate
  6. Check for step-down language if you have more than one child, and file a modification if it is missing

Flatiron Legal Advisors handles child support modification, termination, and enforcement through our Texas family law team. For related reading, see our guide on modifying a child custody order in Texas.

Schedule a consultation before your child’s graduation date.