Requesting a Modification the Right Way
Quick answer
Texas allows a child support modification on a material and substantial change in circumstances, or if it’s been three years since the last order and guideline support would change by 20% or $100 — and it generally applies only from the date you file (Family Code § 156.401).
A modification only helps from the day you file — so doing it right, and doing it fast, both matter.
Do you qualify?
Texas allows a modification on a material and substantial change in circumstances, or if it has been three years since the last order and guideline support would change by 20% or $100 (Tex. Fam. Code § 156.401). Qualifying triggers include job loss or gain, disability, a shift in parenting time, or a change in childcare or insurance costs.
Timing is everything
Modifications generally date back to filing or service — not to when your life actually changed. Every week you wait is a week of retroactive support at the old number. File as soon as the change is real and documented.
The documentation
Bring an updated financial affidavit, recent paystubs or layoff notices, tax returns, health-premium proof, childcare contracts, and parenting calendars. Self-employed filers add a year-to-date P&L and business bank statements. Consider requesting a 60–90-day temporary adjustment tied to verifiable milestones.
Don't self-modify
Keep paying the ordered amount until a new order issues — stopping or recalculating on your own just builds arrears. And never conceal income: judges compare bank records against tax returns and lifestyle. Once the new order is signed, notify payroll and the SDU and verify postings after two cycles.
Talk to a lawyer for child support at Sinkin Law Firm — we collect and enforce child support across Texas.
Owed child support in Texas?
On collection and enforcement cases, you don't pay our fees. Let's review yours.