Why the Texas calculator says you owe more than your take-home pay suggests

This post explains how Texas defines the income figure that guideline child support runs on. It is not legal advice and it does not tell you what a court will order. Income characterization is one of the most contested parts of a Texas support case, and the facts that matter are specific to each situation. Talk to a Texas family lawyer about yours. What follows is the statute and the arithmetic it produces.

The single most common reaction to a Texas child support estimate is that the number is too high relative to what actually lands in the bank each month. That reaction is usually correct as an observation and usually wrong as a conclusion. The calculator is not adding anything. It is running on a figure the Texas Family Code defines, and that figure is deliberately not your take-home pay.

The gap between the two is where nearly all of the confusion lives.

The short version

• Texas guideline support applies a percentage to monthly net resources under Tex. Fam. Code §154.125, not to gross pay and not to take-home pay.
• Net resources is a statutory construct defined by §154.062(d). It subtracts a specific, short list of items from gross income. That list is much shorter than the list of deductions on a real pay stub.
• Retirement contributions are not deducted. Neither are car payments, mortgage or rent, credit card payments, student loans, or your own health insurance premium. Your child’s health and dental premiums are deducted; yours are not.
• Federal income tax is deducted using a fixed assumption, not your actual withholding: §154.062(d)(2) requires the rate for a single person claiming one personal exemption and the standard deduction, whatever your real filing status is.
• On a $8,000 per month W-2 salary, net resources works out to roughly $6,364 while actual take-home for someone contributing 10% to a 401(k) and paying their own health premium is closer to $5,214. Support runs on the larger figure.

The practical consequence is that a parent can look at a guideline number, compare it to their bank balance, and reasonably conclude the math is broken. The math is not broken. It is measuring something other than what they are measuring.

What §154.062 actually subtracts

Section 154.062 works in two moves. Subsection (b) defines resources broadly: wages and salary, self-employment income, rental income, retirement and pension benefits, severance, unemployment, disability, interest, dividends, gifts and prizes, and essentially all other income actually received. It is an expansive definition on purpose.

Subsection (d) then defines what comes back out to reach net resources:

1. Social Security taxes, or for the self-employed, the equivalent contribution
2. Federal income tax, computed under the assumption discussed in the next section
3. State income tax, where the obligor pays one
4. Union dues
5. Expenses for the child’s health insurance coverage, dental coverage, or cash medical support

That is the list. For a Texas resident, item 3 is zero, since Texas has no state income tax. The other four are what stand between gross and net resources.

Read the list again for what is missing, because the absences drive the arithmetic more than the inclusions:

Retirement contributions are not deducted. A parent contributing 10% of salary to a 401(k) has that money withheld before it ever reaches their account, and it is invisible on their pay stub’s bottom line. The statute does not care. That contribution remains inside net resources.

Your own health insurance premium is not deducted. This one catches people, because item 5 explicitly deducts health and dental coverage for the child. The parent’s own coverage is not on the list. If a family plan covers both, only the portion attributable to the child’s coverage comes out.

Ordinary debt does not come out. Car payments, mortgage or rent, credit cards, student loans, and personal loans are all outside §154.062(d). So are wage garnishments for other debts. A parent servicing significant debt has meaningfully less money available than net resources implies, and the guideline does not adjust for it.

Cost of living does not come out. Nothing in the list accounts for housing costs, groceries, commuting, or childcare for the obligor’s own household.

None of this is an oversight. A guideline that deducted every real-world obligation would be unadministrable, because it would require the court to audit each parent’s spending and adjudicate which commitments are reasonable. Texas chose a short, objective list that produces the same answer regardless of who computes it. The tradeoff is that the resulting figure is not disposable income and was never meant to be.

The single-filer assumption

Item 2 on that list deserves its own treatment, because it is the least intuitive rule in the chapter.

§154.062(d)(2) requires deduction of federal income tax “based on the tax rate for a single person claiming one personal exemption and the standard deduction.”

That is a legal presumption, not a description of the obligor. It applies no matter how the obligor actually files. A married parent filing jointly with three dependents, whose real federal withholding is modest, still has net resources computed as though they were single and taking the standard deduction. A parent who itemizes substantial deductions gets no benefit from them here.

The presumption exists for the same reason the deduction list is short: uniformity. Two courts computing the same obligor’s net resources should reach the same number, and that is only possible if the tax input is fixed by rule rather than derived from a return that may not exist yet. The cost is that the deducted tax figure will rarely match anyone’s actual liability.

There is also a historical artifact worth knowing about. The statute says “one personal exemption,” and since the 2017 Tax Cuts and Jobs Act the personal exemption has been worth zero under IRC §151(d)(5). The statutory language was not updated. In practice the reconciliation is the Office of the Attorney General’s annually republished tax charts, which express the presumption as concrete dollar figures for each year. Those charts were substantially rewritten for 2026 to absorb the changes from the One Big Beautiful Bill Act. Our engine derives from the same published methodology, which is why our federal tax deduction agrees with the OAG’s.

The arithmetic, line by line

Take a parent earning $8,000 per month in W-2 wages, or $96,000 annually. No union dues. Their child is on the other parent’s health plan, so no premium deduction applies here.

Step 1: federal income tax under the §154.062(d)(2) presumption.

Annual gross of $96,000, minus the 2026 single-filer standard deduction of $16,100, gives taxable income of $79,900. Running that through the 2026 single brackets produces about $12,290 per year, or $1,024 per month.

Step 2: Social Security.

6.2% of $96,000 is $5,952 annually, or $496 per month.

Step 3: Medicare.

1.45% of $96,000 is $1,392 annually, or $116 per month.

Step 4: net resources.

$8,000 minus $1,024 minus $496 minus $116 leaves $6,364 per month in net resources.

Step 5: apply the guideline percentage.

For one child before the court, §154.125 sets 20%. Twenty percent of $6,364 is about $1,273 per month.

Now put that next to the same parent’s actual cash position. Suppose they contribute 10% of salary to a 401(k), which is $800 per month, and pay $350 per month for their own health coverage. Their real take-home is roughly $5,214.

The guideline ran on $6,364. The difference is $1,150 per month of perfectly ordinary, entirely legitimate spending that the statute does not recognize. That is the whole phenomenon. Nothing was miscalculated.

Self-employment changes the inputs, not the logic

For self-employed obligors, §154.065 defines income from self-employment as gross receipts minus ordinary and necessary business expenses. The word “necessary” does real work: the statute explicitly allows the court to exclude amounts the IRS might permit but that do not reflect actual reductions in personal spending. Accelerated depreciation is the classic example. A deduction that lowers taxable income without lowering available cash can be added back.

The self-employment tax treatment also differs. Where a W-2 employee pays 6.2% Social Security and 1.45% Medicare with the employer matching, a self-employed obligor carries both halves through self-employment tax, computed on 92.35% of net earnings under IRC §1402. The deduction under §154.062(d)(1) reflects that larger figure.

The structure is identical. Only the inputs move.

What to do with this

If a Texas guideline figure looks wrong against your bank statement, the productive question is not whether the calculator is broken. It is which specific input is wrong. Three are worth checking:

Is the gross figure right? Overtime, bonuses, and commissions are resources under §154.062(b). If the estimate used base salary alone and your income includes substantial variable pay, the figure is low rather than high.

Was the child’s health premium counted? It is deductible under §154.062(d)(5) and it is frequently omitted from quick estimates. If you carry the child’s coverage, that comes out of net resources.

Are you above the cap? §154.125 applies the percentage only up to a ceiling on monthly net resources, currently $11,700. Above it, the guideline figure stops rising with income. We wrote about the cap, and about the fact that the OAG’s own calculator still applies the superseded $9,200 figure, in a separate post.

And if the number is simply higher than you can comfortably pay, that is an argument under §154.123, which lets a court vary from the guideline on stated findings. It is not an argument that the net resources computation was wrong. Those are different claims and they go to different places in a proceeding.

You can run the computation with our Texas child support calculator, which shows every §154.062(d) deduction as its own line rather than collapsing them into a single figure, and cites the controlling subsection at each step.

Primary sources

• Tex. Fam. Code Chapter 154 at statutes.capitol.texas.gov. §154.062 defines resources and net resources, §154.065 covers self-employment income, §154.070 addresses income from other sources, and §154.125 sets the guideline percentages and the cap.
• The OAG tax charts at csapps.oag.texas.gov, which express the §154.062(d)(2) presumption in dollar terms for the current year.
• IRS Rev. Proc. 2025-32 for the 2026 standard deduction and bracket figures used in the worked example above.

Statutes reviewed 2026-07-30. Tax constants are 2026 figures per IRS Rev. Proc. 2025-32, reflecting the One Big Beautiful Bill Act amendments.