Child Support If You Make $1,500 a Week in Illinois
At $1,500 a week, the paying parent income is high enough that even the top other-parent scenario in this table, $6,000 a month, does not dwarf it the way it would at a lower weekly income.
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Guideline child support scenarios at $1500 a week
The paying parent earns $1500 a week ($6,500.00 a month) in every cell below. The other parent's monthly income changes across rows, and the number of children changes across columns; both genuinely change the result.Every figure is computed with the real Illinois guideline engine, the same one behind the full calculator, not a lookup table built for this page.
| Other parent's income | 1 child | 2 children | 3 children |
|---|---|---|---|
| No reported income | Not available: the Illinois gross-to-net conversion table does not cover this monthly gross income; adjust the income values above | Not available: the Illinois gross-to-net conversion table does not cover this monthly gross income; adjust the income values above | Not available: the Illinois gross-to-net conversion table does not cover this monthly gross income; adjust the income values above |
| $2,000 a month | $958.61 | $1,438.28 | $1,713.02 |
| $4,000 a month | $887.68 | $1,311.88 | $1,538.48 |
| $6,000 a month | $844.25 | $1,253.05 | $1,475.39 |
Every dollar figure is a monthly amount, the presumptive guideline result before add-ons like child care or health insurance and before any court deviation. "Not available" means the engine behind this site declined to compute that specific combination rather than guess; the reason is shown next to it.
What happens as two incomes get closer together
Illinois combines both parents standardized net incomes, looks up the basic obligation for that total and the number of children on the 2026 schedule, then splits the obligation in proportion to each parent share. Nothing about the formula changes shape when the two incomes are close instead of far apart; the same proportional math applies throughout.
What does change is how much of the combined obligation shifts as the other parent income rises. At $1,500 a week ($6,500 a month gross), the paying parent already contributes the larger share of most combined totals in this table, so a rising other-parent income narrows that gap rather than reversing it within the four scenarios shown.
How to read the table below
Every row uses the same $1,500-a-week gross pay for the paying parent. Compare how much the number moves between the $2,000-a-month and $6,000-a-month other-parent rows here versus the equivalent comparison at a lower weekly income elsewhere in this series; the gap narrows as the payer own income grows relative to the schedule range.
The "no reported income" row is marked unavailable rather than guessed, because the published conversion table itself does not list a net-income figure for a $0 gross parent.
What this estimate includes
- The 2026 Gross to Net Income Conversion Table lookup for both parents
- The income shares schedule of basic obligations for 1, 2, or 3 children
- The proportional split of the combined obligation by each parent share of net income
What it leaves out
- An individualized net income calculation based on actual taxes and deductions
- Court-ordered support paid for children of other relationships
- Maintenance (spousal support), computed separately under 750 ILCS 5/504
Worth knowing
The narrowing gap described here is specific to the four other-parent income scenarios this page tests ($0 to $6,000 a month). A much higher other-parent income, outside this table range, would eventually shift the proportional split further than shown.
Nothing about Illinois income shares formula treats a shared-care arrangement or a large combined income as a special high-income case the way some other states do; the same schedule and proportional method carries through unless the combined net income exceeds what the schedule table covers.
Frequently asked questions
Does the formula change when both parents earn similar amounts?
No. Illinois uses the same proportional-share method regardless of how close the two incomes are. What changes is the outcome, not the mechanism: a smaller income gap between the parents produces a smaller shift in the payer proportional share as the other-parent scenario changes.
Why does the number move less between rows at this income than at a lower weekly income?
At $1,500 a week the paying parent already accounts for a large share of the combined total across the four other-parent scenarios shown, so a rising other-parent income changes that share by a smaller margin than it would if the payer income were much lower relative to the same other-parent figures.
Why is the "no reported income" row unavailable?
The 2026 Gross to Net Income Conversion Table lists standardized net-income figures starting at a defined gross floor. A parent reporting $0 falls below what the published table covers, so this page shows that honestly rather than inventing a figure.
Does my actual tax situation change the result?
Not under the standard table used here. A parent can ask a court for an individualized net income calculation based on real taxes instead of the table, and the result can differ from the table figure.
Is there a point where the other parent income stops mattering?
Not within the schedule range this page covers. Illinois combined-income schedule keeps responding to both parents figures throughout the range tested here; the formula does not flatten out or ignore either parent income at these levels.
Does 50/50 parenting time change this number?
Shared physical care, where each parent holds at least the statutory overnight threshold, applies a separate 1.5x cross-multiplication offset under 750 ILCS 5/505. This page assumes the standard non-shared arrangement, so a genuinely shared-care case would need the full calculator.
About the numbers on this page
Every figure in the table above comes from running the real Illinois child support engine on this site, the same engine and data pack behind the full Illinois child support calculator. Nothing on this page is a separate estimate or a reimplementation of the math. See the sources below for the statutes and official worksheets behind the Illinois guideline.
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Changelog: page first published as part of the child support by income series. Material changes are dated in the update log.