Marcus earns $7,200 a month, pays support for two children from his first marriage, and now has a newborn with his current spouse. The existing order doesn't automatically account for the child in his home. If Marcus treats the worksheet as a routine form, he may present the court with an incomplete picture of the children he legally supports.
Texas handles this problem through the multiple-family adjustment, a calculation designed for an obligor who supports children in more than one household. The answer depends on which children qualify, how net resources are calculated, how many children are before the court, and whether the guideline result should be adjusted under Texas Family Code §154.123.
Why the Multiple Household Worksheet Matters for Texas Parents
A parent can owe support for children in two households while raising another child at home. The court must account for those overlapping legal duties before setting support. The multiple-household worksheet prevents an ordinary percentage from ignoring children the obligor is already required to support.
For Marcus, the guideline amount for two children before the court is 25% of monthly net resources, according to the Texas guideline table. A qualifying child in another household lowers the applicable multiple-family percentage. That reduction is part of Texas's statutory calculation, not a favor or informal compromise.
The worksheet forces four questions:
- Which children count? The court identifies the children before it and other children whom the obligor has a legal duty to support.
- What are the obligor's net resources? Gross wages do not determine the final figure.
- Which adjusted percentage applies? The rate depends on the number of children in the case and the number of other supported children.
- Does the guideline result require a deviation? A calculated amount may still be unjust or inappropriate for a particular family, allowing an argument under Texas Family Code §154.123.

Practical rule: Ask, “How many children must Texas law include in this calculation?” Do not stop at, “What percentage do I pay?”
The 2025 cap makes accurate classification more important. Effective September 1, 2025, Texas increased the guideline net-resource cap from $9,200 to $11,700, as reflected in the revised Texas tax charts. The official calculation applies guideline support to monthly net resources up to $11,700 and requires the obligor to identify other supported children. The cap and the multiple-family adjustment must be analyzed together.
Parents supporting children in different homes should also review Texas child support rules for multiple children with different mothers. The label attached to each household does not decide the result. The controlling issues are the obligor's legal support duty, proof of that duty, the adjusted percentage, and any facts supporting a §154.123 deviation.
How the Texas Multiple Household Worksheet Works
A parent supports two children in a pending case and another child at home. The court cannot apply the ordinary guideline percentage and guess at a deduction. Texas uses a four-part method that accounts for every legally supported child before setting support for the children in the case. The TexasLawHelp child support explanation describes the sequence:
- Calculate support as though all relevant children were in one household.
- Determine the credit for children who are not before the court.
- Subtract that credit from the obligor's net resources.
- Apply the resulting guideline percentage to the children in the pending case.
The court must identify the children, verify the support duty, calculate net resources, and apply the statutory adjustment. A household-budget comparison does not replace the worksheet.
The Marcus example
Marcus has two children before the court and one newborn whom he has a legal duty to support. The court identifies the two children in the pending case under Texas Family Code §154.062(a). It then considers the newborn as an “other child” under §154.062(b), if Marcus proves the legal support obligation through reliable records.
Net resources come next. Section 154.062 addresses income and permitted deductions, including taxes and other qualifying expenses. Marcus should provide income records, tax information, and documentation for claimed deductions. A bank-deposit total or single pay stub is not a reliable substitute for the statutory calculation.
The adjusted percentage applies after those figures are established. The multiple-family method reduces the effective rate when supported children live outside the pending case. The worksheet, not an informal comparison of household expenses, produces the initial guideline amount.
| Worksheet Line | Marcus Figure | Source |
|---|---|---|
| Monthly net resources | $7,200 | Pay records and §154.062 calculation |
| Children before the court | 2 | Current SAPCR or modification pleadings |
| Other supported children | 1 | Birth record, prior order, or support evidence |
| Ordinary guideline percentage for 2 children | 25% | Texas guideline schedule |
| Adjusted percentage | Statutory multiple-family rate | Applicable worksheet |
| Initial support result | Net resources multiplied by adjusted rate | Court worksheet and proposed order |
The proposed child-support order should state the calculation and resulting amount. The worksheet supports the order; it does not create an enforceable obligation. Only a signed court order establishes the amount Marcus must pay. That initial figure can still be challenged under Texas Family Code §154.123 when the guideline result does not fit the family's documented circumstances.
Reading the Multiple Family Adjusted Percentage Table
A parent supporting children in two households cannot stop at the ordinary guideline percentage. The court must account for children supported outside the pending case, or the initial order may overstate the obligor's available resources.
The standard schedule under Texas Family Code §154.125 is 20% for one child, 25% for two, 30% for three, 35% for four, and 40% for five children, subject to the statute's structure and resource limits. The Texas Family Code guideline provision provides the governing percentages. The multiple-family table then reduces the effective rate according to the number of other supported children.
| Children in Order | 0 Other Children | 1 Other Child | 2 Other Children | 3 Other Children |
|---|---|---|---|---|
| 1 child | 20.00% | 17.50% | 16.00% | 14.75% |
| 2 children | 25.00% | 22.50% | 20.63% | 19.00% |
| 3 children | 30.00% | 27.38% | 25.20% | 23.25% |
Use the TexasLawHelp guideline table to confirm the applicable row and column. Verify the three-children row against the current FM-CS-800 worksheet before filing, because the OAG tables are updated each September when the cap changes. The table supplies the adjusted percentage. It does not replace the four-step calculation: identify the children before the court, confirm legally supported children outside the case, select the adjusted rate, and apply it to the obligor's monthly net resources. The statutory cap and any requested deviation must then be analyzed separately.
What the table does and doesn't do
The adjustment preserves support for the children in the pending case while recognizing the obligor's other legal duties. It does not turn household expenses into a substitute for proof, and it does not determine the final order by itself.
A stepchild does not qualify automatically as an “other child” because the obligor lives with that child. Establish a legal duty to support the child and provide evidence supporting that duty under the governing statute. A prior order, birth record, or other reliable proof may matter at the hearing.
A spreadsheet can reproduce arithmetic. It cannot prove that a child belongs in the “other children” column.
Do not round the rate casually. A small error applied to substantial net resources can change the monthly order, arrears, and later modification arguments. Identify every input, retain the worksheet used at mediation or trial, and present a clear explanation for each child counted in the adjustment. The percentage table gives the starting point. The evidence determines whether the court accepts the inputs and whether a §154.123 deviation should change the result.
Calculating Net Resources Before the Worksheet
A parent who brings only a recent low paycheck to a Texas child support hearing leaves the income calculation open to attack. The court evaluates net resources, not the obligor's preferred description of earnings. Salary, commissions, bonuses, overtime, self-employment income, rental income, royalties, retirement payments, unemployment benefits, and disability income may all matter under Texas Family Code §154.062.
The calculation follows four practical steps: identify recurring resources, verify the monthly average, apply permitted deductions, and test whether reported income reflects actual earning capacity. A parent who omits overtime, commissions, bonuses, or business receipts invites the other side to argue that the figure is incomplete. Intentional unemployment or underemployment also requires attention under Texas Family Code §154.065.
Income that needs a paper trail
Start with records, not estimates. Gather:
- Employment income: Base wages, overtime, commissions, bonuses, and payroll deductions.
- Business income: Receipts, deposits, profit-and-loss records, Schedule C information, and business expenses requiring review.
- Property income: Rental ledgers, management statements, and records showing actual receipts.
- Benefits and distributions: Retirement, unemployment, disability, and other recurring payments.
- Earning capacity: Evidence showing whether the parent could work more or earn more than the reported amount.
Self-employment deductions require close review. Depreciation, vehicle expenses, insurance, and home-office costs may reduce taxable income without representing money unavailable for support. The court can examine the economic reality behind the tax return and reject deductions that do not reflect a genuine reduction in available resources.

For a practical explanation of the inputs, review how to calculate net resources for child support in Texas. Set a defensible monthly figure before applying the multiple-family adjusted percentage.
The $11,700 monthly net-resources cap, effective September 1, 2025, limits the standard guideline calculation unless the court finds grounds for deviation. Confirm the applicable calculation with the OAG monthly child support calculator. The 2025 cap does not erase the multiple-family adjustment. Apply the correct adjusted percentage to the capped resources, then analyze whether facts support a different order under §154.123.
The low-income schedule also matters. When monthly net resources fall below $1,000, §154.125 supplies a separate presumptive schedule, including 15% for one child and 20% for two children.
Documents You Need Before You Touch the Worksheet
Courts give little weight to unsupported assertions. If you claim that another child belongs in the calculation, or that income is lower than the opposing party alleges, bring documents that prove the point.
Build the income file
Collect:
- Current earnings: Twelve months of pay stubs or direct-deposit history, including overtime and bonuses.
- Tax records: The most recent two years of W-2s, 1099s, and federal returns with schedules.
- Business records: Bank statements, invoices, ledgers, profit-and-loss statements, and Schedule C materials for self-employment.
- Other resources: Retirement statements, pension records, rental-property statements, disability award letters, and unemployment records.
- Deduction proof: Records for child health insurance, union dues, mandatory retirement, and court-ordered support.
Prove the children and existing orders
The “other children” entry needs evidence. Use birth certificates, prior support orders, divorce decrees, SAPCR orders, modification orders, school records, and medical-insurance records to identify the children and establish the obligor's legal responsibility.
Don't confuse household membership with a legal duty. A biological child may qualify when properly documented. A stepchild may not qualify automatically. Existing orders and actual support payments can be important, but the court still applies the statutory requirements rather than accepting a label.

Put the records in a hearing-ready file. Mark the documents that establish income, the documents that establish the other children, and the documents that support deductions. That organization makes it easier to challenge an inaccurate worksheet and easier for the judge to follow your proposed calculation.
When the Guideline Result Is Wrong and How §154.123 Fixes It
The guideline number is a starting point, not an automatic answer to every blended-family dispute. Texas Family Code §154.123 allows a court to deviate when applying the guideline amount would be unjust or inappropriate after considering the statutory factors.
Those factors include the child's age and needs, each parent's ability to contribute, the resources and needs of both parents, possession time, child-care expenses, the obligee's net resources and earning potential, and other circumstances identified by the statute. The court may also consider intentional unemployment or underemployment and income attributable to assets, according to Texas Family Code §154.123.
Evidence that can move the court
A deviation request should connect a specific expense or circumstance to a specific statutory factor. Useful evidence may include:
- Medical needs: Therapy bills, treatment records, special equipment, or medically necessary dietary costs.
- Educational expenses: Private-school tuition or special education costs supported by receipts and records.
- Parenting-time facts: Proof of actual possession and the expenses each parent pays during that time.
- Other support obligations: Existing orders and proof of payments for children in another household.
- Earning-capacity evidence: Employment records or asset information showing that a parent is intentionally earning below capacity.
The court should see the worksheet result next to the evidence explaining why that result fails to protect the children fairly. A general claim that support feels too high or too low isn't enough.
The statute also permits consideration of whether a child who doesn't live with the obligor is receiving support through a child support services program. That issue can matter in a multi-household case where one child has a formal support pathway and another household is carrying substantial direct expenses.
A parent seeking deviation should request findings tied to the statutory factors. The argument should be: this is the guideline amount, this is the documented circumstance, this is the relevant §154.123 factor, and this is the requested adjustment. Courts respond to organized proof, not broad appeals to fairness.
For possession-time disputes, review the separate issue of child support and shared custody offsets in Texas, but don't assume a possession schedule automatically replaces the guideline analysis.
Filing, Service, and Modification Under Texas Law
A completed multiple-household worksheet does not change an existing child support order. If a parent now supports additional children, earns less, or faces expenses that make the current amount unjust, that parent must file the proper petition or motion, serve the other party, present evidence, and obtain a signed order. Until then, the existing obligation remains enforceable.
The Office of the Attorney General may review support information, develop the case, assist with proposed orders when it is involved, and pursue enforcement or modification through its established process. The OAG does not make a worksheet calculation legally effective by itself.
What filing accomplishes
A modification case generally requires proof of a material and substantial change under the Texas Family Code, unless another statutory basis applies. Texas law also provides a three-year review framework and a presumption that may apply when the guideline amount would change by the required threshold. The current order stays in place until the court signs a replacement order.
The OAG describes modification as a review and case-development process in its modification journey guidance. A parent requests review, the agency gathers information, and the dispute may proceed through negotiation, administrative handling, or court litigation. A calculator result starts the analysis. It does not decide the case.
Service controls the response deadline and can affect the date from which modification relief becomes effective. A respondent served in a court case generally has 20 days plus the next Monday at 10 a.m. to answer, as explained in the Texas child support materials. Confirm that citation was properly issued and served. A defective or delayed service process can undermine an otherwise valid request.
Filing starts the case. Service starts the response clock. A signed order changes the obligation.
Hearings and retroactivity
After filing and service, the court may set temporary relief, a status conference, mediation, or a final hearing. An associate judge may hear the dispute when authorized, receive evidence, make recommendations, and prepare the matter for a final order or review by the referring district judge.
Retroactivity requires a specific strategy. Under §156.401, the effective date generally relates to service or appearance, although limited circumstances can support relief reaching further back. Filing alone does not guarantee a retroactive change. Serve the respondent promptly when the effective date affects the amount at issue.
If the obligor stops paying, enforcement may involve income withholding, an arrears judgment, contempt proceedings, license consequences, and other remedies authorized by Texas law. Enforcement does not replace modification. A parent cannot unilaterally reduce payments because the current order no longer reflects support for additional children.
Four questions clients ask
Which parent's income counts? The guideline calculation centers on the obligor's net resources. The obligee's resources, earning capacity, and financial circumstances may matter when the court considers whether the guideline result is unjust or inappropriate under §154.123.
Do stepchildren automatically count as other children? No. Living in the same household does not establish the required legal support duty. The parent must prove the applicable legal obligation and provide records showing the support paid.
How does the cap handle income above $11,700? Effective September 1, 2025, the standard guideline calculation uses monthly net resources capped at $11,700, according to the OAG monthly calculator. At that cap, the standard maximum guideline amounts are $2,340 for one child, $2,925 for two children, $3,510 for three children, $4,095 for four children, and $4,680 for five or more children. Apply the multiple-family adjustment before deciding whether the capped result still requires a deviation argument under §154.123.
Do self-employment deductions reduce net resources? Only qualifying deductions supported by reliable records should reduce the calculation. Personal expenses disguised as business costs, questionable depreciation, and unsupported vehicle allocations can be challenged. The court may also consider income from assets and earning capacity.
Before the hearing, assemble the last twelve months of pay records, identify each child for whom either parent may have a legal support duty, collect existing orders and payment records, and run the four-step method. Compare that result with possession costs, extraordinary expenses, and competing obligations. Then state the deviation request precisely: the guideline amount, the documented circumstance, the applicable §154.123 factor, and the adjustment requested. Courts decide these disputes on organized proof, not general claims that the amount feels unfair.

Texas Child Support Law Office of Bryan Fagan handles establishment, modification, enforcement, and defense of Texas child support orders, including disputes over net resources, other children, guideline caps, and §154.123 deviations. Visit Texas Child Support Law Office of Bryan Fagan to discuss your worksheet, supporting documents, and hearing strategy with a Texas family law attorney.