Federal brackets are not the only numbers that reset each year. Several states quietly moved their own rates, deductions or thresholds for 2026 — and those changes hit your paycheck before a single federal dollar is even calculated.
Iowa's rate cut is still landing
Iowa taxed income at a top rate of 8.53% across nine brackets as recently as 2022. For 2026 every dollar of Iowa taxable income pays a single flat 3.8% — the Iowa Department of Revenue confirmed the rate in its October 2025 announcement. On a $60,000 salary that flat rate works out to about 2.8% of gross pay once the federal standard deduction is applied first, because Iowa starts from your federal taxable income.
Illinois raised its exemption allowance
Illinois has taxed income at a flat 4.95% since 2017, and voters rejected a 2020 ballot measure that would have allowed brackets. The rate itself did not move for 2026, but the one break Illinois gives — the personal exemption allowance — rose to $2,925 per person, up from $2,850. Illinois has no standard deduction, so that allowance is the only thing that comes off before the 4.95% applies.
Massachusetts' millionaire surtax threshold moved with inflation
Massachusetts taxes wages at a flat 5%, plus a 4% surtax on taxable income above a millionaire threshold. That threshold is not fixed — it rises with inflation every year. For 2026 it sits at $1,107,750. Almost nobody reading a $60,000-$150,000 paycheck will ever touch the surtax, but the state has already built the adjustment in, so the top combined rate of 9% only reaches further each year without a new law.
Georgia and Missouri lean on a bigger first deduction, not a rate change
Georgia kept its flat 4.99% rate for 2026, but its $15,000 standard deduction for single filers means a $25,000 earner pays Georgia tax on only $10,000 — an effective state rate of about 2%, well under the headline number. Missouri did the same thing a different way: it simply adopted the federal standard deduction ($16,100 for a single filer in 2026), so the first slice of every Missouri paycheck carries no state tax at all, ahead of a state top rate of just 4.7%.
Why this matters more than the federal headlines
National paycheck coverage almost always leads with the federal brackets, because they apply everywhere. But the state-level moves above are exactly the kind of detail a flat, national calculator misses — a rate cut here, a bigger deduction there, a threshold that quietly tracks inflation. None of it shows up unless the tool is built state by state.
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