Child Support Services, or the court where the judgment was made.
If your child is married they are emancipated so there should be no need for child support. Contact the court.
You will need to contact the agency to stop child support. However, if the child is still attending high school, 18 is not the "magic" age in many places.
At 18, you are no longer considered a child for child support purposes unless you have not graduated high school or are disabled. If the child is 18 and out of high school, you must contact the Texas AG to stop child support.
Contact child support enforcement, but they may require a court order. File motion to change custody and modify child support. see link for help.
Contact the Attorney General Office
Child support is worked out by your annual income so you should not be paying more than you can afford. I believe there is a percentage of your wages that you must still have after child support is taken. Check with your child support how much that is. In my country no more than 40% of your wages can be taken for child support.
contact child support enforcement
You stop paying for child support when your child turns 18.
You will need to contact the child support recovery unit that is handling your case to have the support stopped. If a recovery unit is not handling your case, you will have to file paperwork with the court system.
You can stop child support payments on the grounds that the child is not your biological child only if you did not know that when you agreed to the support, and if a Court approves your request to stop.
In Colorado, child support will stop at the age of 18 or when the child finishes school. There is a possibility that the child can receive child support if the child goes on to college.
your child attends community college when will support stop