Worked example — not a real case
Illustrative worked example. The household is hypothetical; every figure is computed by the same verified engines and rule packs the calculators use.
Worked example · updated 2026-07-30
A SNAP Household of Four — The Gross Test, the Net Test, and 30% of Net
An illustrative family of four with $2,600 of monthly earned income and $1,730 in shelter and utility costs, run through the FY2026 SNAP screening arithmetic: the 130% gross test, the deductions that produce net income, the 100% net test, and the maximum allotment less 30% of net.
The illustrative household
A hypothetical household of four has $2,600 in monthly earned income and no unearned income, pays $1,450 in rent and roughly $280 in utilities, has no dependent-care or medical costs, and includes no member aged 60 or older or disabled. The FY2026 federal baseline figures for the 48 contiguous states are applied.
Walkthrough
Step 1 — the gross income test, at 130% of the poverty guideline
The first screen compares total monthly income before any deductions against 130% of the federal poverty guideline for the household size. Households containing a member aged 60 or older or disabled skip this test entirely, and most states relax or waive it through broad-based categorical eligibility. This example applies the plain federal baseline so the mechanics are visible.
Step 2 — deductions turn gross income into net income
Net income is gross minus a fixed sequence of allowable deductions: a standard deduction that varies by household size, 20% of earned income, dependent care needed for work or training, and medical costs above $35 per month for elderly or disabled members. This household qualifies for the first two. The 20% earned-income deduction is the reason a household with wages nets out lower than one with the same amount of unearned income.
Step 3 — the excess shelter deduction, and its cap
Shelter costs are deductible only to the extent they exceed half of income remaining after the earlier deductions. Rent plus utilities of $1,730 against that halfway mark produces an excess well above the FY2026 cap of $744, so the deduction is capped. Households with an elderly or disabled member have no cap at all, which is often the single largest difference the elderly-or-disabled status makes.
Step 4 — the net income test, at 100% of the poverty guideline
Net income after all deductions is compared against 100% of the poverty guideline for the household size. Unlike the gross test, this one is not waived by age or disability status — it applies to essentially every household that is not categorically eligible. The result below shows the net figure alongside its limit.
Step 5 — the benefit is the maximum allotment minus 30% of net
SNAP assumes a household spends about 30% of its own net income on food, so the allotment is the maximum for the household size less 30% of net income. Because the subtraction is proportional, each additional dollar of net income reduces the benefit by 30 cents rather than eliminating it. The computed figure below uses the verified FY2026 USDA tables.
What the engine returns
Computed at page render from the inputs above, by the same functions the calculator runs.
Estimated monthly SNAP benefit
$660/mo
maximum allotment for 4 people is $994
Show the math, step by step
- Gross monthly income
- $2,600.00
- less Standard deduction
- − $223.00
- less Earned income deduction (20%)
- − $520.00
- less Excess shelter (capped at $744)
- − $744.00
- Net monthly income
- $1,113.00
- $994 − 30% of $1,113.00
- $660/mo
Verified 2026-07-30 against USDA FNS/FNA — SNAP Fiscal Year 2026 Cost-of-Living Adjustments (FY26 tables: maximum allotments & deductions, income eligibility standards, minimum allotments, AK/HI/GU/VI allotments) (effective 2025-10-01)
Estimate only — not legal, financial, or benefits advice. Only USDA can determine your actual benefit.
Official source: USDA — SNAP recipient eligibility ↗
Takeaway
SNAP runs two income tests and one subtraction, and the deductions between them do most of the work — particularly the 20% earned-income deduction and the capped excess-shelter deduction. The same gross income produces very different results depending on shelter costs, household size, and whether anyone is aged 60 or older or disabled. This is a screening estimate on hypothetical figures; only your state agency determines eligibility and amounts, and applying is free.
Now run your own numbers →
SNAP Eligibility Calculator
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The household on this page is hypothetical and is described as such throughout. Nothing here reports a real person, a real determination, or a real outcome, and no result on this site is a promise about any case. Estimates only — the agency named above makes every actual determination.