No you are not exempt from paying child support. Your support will be calculated as a percentage of your "income" which is your SSDI check. The percentage amount will depend on how many children you have.
Family Code 154.062 states that social security benefits other than supplemental securiy income are included, and disability payments are also included in computing your net income for determining your child support. The cap on your support is 20% of your net (after tax) income for one child. Doesn't the child also get a social security check because of your disability? I always argue that that amount is in lieu of your child support obligation, but I have seen at least one Judge ignore that check to the child and still order additional support in accordance with the 20% guidelines. You just go to court and make your best argument. You could file a counter motion to reduce the current support because the child is already receiving the separate check which you will allege takes care of the child's minimum reasonable needs. Show up with proof of your expenses. The Judge may or may not care. Texas needs a better way to address this recurring issue. The problem is in part, most of the people making these laws have no idea what it means to live on a fixed income.
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