Free, no-signup tools · Tax years 2020–2026
A small set of tightly scoped tools, each anchored to an official IRS source and updated annually, the calculators run entirely in your browser, with nothing sent to a server.
The two ranks diverge
According to IRS Revenue Procedure 2025-32, tax year 2026 is #1 of 7 published years by Single standard deduction ($16,100) but only #5 of 6 year-over-year pairs by Single 37% threshold inflation lift (2.3%). 2023 is #1 on the inflation-lift map at 7.1%.
Highest published Single deduction is not the same ordering as the largest Single 37% threshold inflation lift. See methodology for how tax years are placed in the IRS Revenue Procedure corpus.
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According to the Internal Revenue Service, PlainTaxData tools cover tax years 2026, 2025, 2024, 2023, 2022, 2021, 2020 using figures from IRS Revenue Procedures; see our methodology for sourcing.
Estimate your federal income tax for 2024–2026. Pick filing status, enter gross income, choose standard or itemized deduction.
Output: Tax owed, marginal rate, effective rate
Source: IRS Rev. Proc. 2024-40 (2025) and 2025-32 (2026)
Lookup table for marginal income tax brackets across all four filing statuses, every year from 2020–2026.
Output: Bracket thresholds + rates per filing status
Source: IRS annual Revenue Procedures
Standard deduction, capital gains thresholds, IRA / 401(k) / HSA contribution limits, EITC, and Child Tax Credit values for the current and prior year.
Output: Deduction + contribution + credit table
Source: IRS Pub. 501, 550, 596; annual IR notices
Calendar of tax-season dates, estimated quarterly deadlines, extension cutoffs, and refund-window references for the 2026 filing year.
Output: Date + category timeline
Source: IRS calendar + Revenue Procedures
How state income tax layers on top of the federal brackets, useful when a relocation or remote-work move changes the state side of the bill.
Output: State income tax structure vs. federal
Source: State revenue departments + IRS bracket tables
Enter your income, filing status, and number of children to see whether you qualify for the Earned Income Tax Credit and estimate the credit amount.
Output: Eligibility verdict, estimated credit
Source: IRS Rev. Proc. 2025-32 (2026 EITC limits)
Enter your taxable income and filing status to instantly find your federal marginal tax rate, the rate on your next dollar, for any year 2020–2026.
Output: Marginal rate, effective rate, total tax
Source: IRS Rev. Procs. 2019-44 through 2025-32
Compare federal tax brackets between any two years (2020–2026) for the same income and filing status. Shows how the bracket thresholds shifted.
Output: Side-by-side tax owed, bracket table, difference
Source: IRS Revenue Procedures 2020–2026
Download the compiled IRS ordinary-income bracket table: federal-tax-statistics.csv (same extract as /statistics; CC0 / U.S. government source figures).