Tools hub · 2026 tax year

PlainTaxCalc Tools

According to the Internal Revenue Service Revenue Procedure 2025-32 and each state Department of Revenue August 2026 schedule, every calculator and reference surface here runs in your browser: no account, no upsells, no tracking.

51
state pages
9
no-tax jurisdictions
$8,431
heaviest @ $100K · Oregon

Where to start

Start with the interactive calculator for your own income, then browse state pages or compare burdens. At $100K taxable (single), Oregon carries the heaviest state line at $8,431; 9 jurisdictions charge nothing.

IRS Rev. Proc. 2025-32 · each state Department of Revenue 2026 schedule How we calculate →

$8,431
heaviest state @ $100K Oregon
9
jurisdictions with $0 state income tax
1
live federal + state + FICA calculator
Top 5 heaviest state-tax lines at $100K Horizontal bar chart of the top 5 items by value (state tax). Top 5 heaviest state-tax lines at $100K 1. Oregon $8,431 2. District of Columbia $6,900 3. Maine $6,630 4. Hawaii $6,491 5. Minnesota $6,317 State income tax owed by a single filer on $100,000 oftaxable income, 2026. Open the calculator below to stackfederal + state + FICA for your own figures.

Open Data

Download state-income-tax-statistics.csv, same extract as /statistics.

What to do with this

Pick the interactive calculator first, then open the matching reference surface.

Tools reprint official schedule lines for educational reference; they are not a filing recommendation.

Every figure on PlainTaxCalc is rendered directly from IRS Revenue Procedure and state Department of Revenue data, no number is typed in by an editor. This hub lists tools that compute from IRS Revenue Procedure and state Department of Revenue data; no figure is typed in by an editor. See our editorial standards & corrections policy, the methodology behind these numbers, the data changelog, or report a data issue on this page. Data current as of August 2026.

A published rate is a schedule line, not a filing recommendation. The calculator's take-home figure applies the standard deduction only, it excludes credits, AMT, and itemized deductions. These pages explain the issued tables; they are not tax advice.