Prop firm payout taxes in Illinois

Updated October 30, 2026 · For the 2026 tax year

Illinois is one of the simplest states to plan for. One rate, 4.95%, applies at every income level. If your day job has already used up your exemption, the state line is 4.95% of your payout after subtracting the deductible half of self-employment tax.

How the calculator handles Illinois

The rate is 4.95%. Illinois has no standard deduction. It has an exemption of $2,925 per person for 2026, and the calculator counts one for a single filer and two on a joint return. It doesn't count exemptions for dependents.

A $70,000 wage has already used up that $2,925. So your payout, after the deductible half of self-employment tax, is taxed at the full 4.95%.

Worked example: $5,000 payout on top of a $70,000 job

A single filer in Illinois with $70,000 of W-2 wages, one $5,000 payout in 2026 and no trading costs. These are the calculator's numbers for October 30, 2026.

The lines can differ from the total by a cent, because the calculator rounds only at the end. It leaves out the QBI deduction, which may lower the federal tax.

Illinois starts from your federal AGI, and the deductible half of self-employment tax lowers federal AGI. So the state line is $5,000 minus $353.24, times 4.95%, which is $230.01. At this wage, a $10,000 payout adds $460.03 and a $20,000 payout adds $920.06. Compare other states on the Texas page.

Crossing $250,000

Illinois doesn't allow the exemption if federal AGI exceeds $250,000 ($500,000 on a joint return). The calculator counts that: if a payout carries you over the line, the lost $2,925 is about $145 more tax.

The calculator has no line for city or county income tax in Illinois, and it doesn't count the extra $1,000 exemption for being 65 or older or legally blind.

Illinois estimated payments

You must make estimated payments if you reasonably expect your 2026 tax to exceed $1,000 after Illinois withholding, pass-through withholding and certain credits. Note that the line is higher than in New York ($300) and California ($500).

The due dates are April 15, June 15 and September 15, 2026, and January 15, 2027, in four equal installments. You can also pay it all on the first date. If your income comes unevenly or you start midyear, Form IL-2210 explains how to annualize. PayoutTax's quarterly amounts cover federal tax only.

In the example, $230.01 is well under the line. If your withholding covers the tax on your wages, payouts would need to reach about $21,750 for the calculator's state figure to pass $1,000.

If you do need to pay, Illinois says you may not be subject to the late-payment penalty if you pay at least 90% of this year's tax or at least 100% of last year's tax in four equal, timely installments. Publication 105 gives the penalty as 2% of the tax due for payments 1 to 30 days late and 10% for 31 days or later.

This example is an estimate for one situation. Your numbers will differ. Not tax advice; confirm with a CPA.

Sources

• Illinois Department of Revenue, 2026 Booklet IL-700-T: 4.95% rate and $2,925 exemption
• Illinois Department of Revenue, Exemption allowance answer: $2,925 per exemption, extra $1,000, income limits
• Illinois Department of Revenue, 2026 Form IL-1040-ES: who must pay, due dates, 90% and 100% rule
• Illinois Department of Revenue, Publication 105: penalty rates and weekend or holiday dates
• Illinois Department of Revenue, 2025 Form IL-1040 instructions and Individual income tax: Illinois income starts from federal AGI (2026 instructions not out yet)
• IRS, 2026 Form 1040-ES and Rev. Proc. 2025-32: federal lines
• PayoutTax 2026 tax tables: every figure the calculator used, each with its source

General information, not tax advice. This guide explains common rules for US funded traders; your situation may differ. It isn't a substitute for a licensed CPA or IRS enrolled agent, so review your own numbers with one before you file or pay.