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.
How to pick the right tool
Want a number? Start with the calculator. Want a reference table to send to a CPA? Use Brackets by Year or Deductions & Limits. Want to understand why two filers with the same income owe different tax? Read the marginal-vs-effective guide.
According to the Internal Revenue Service, the 2026 single standard deduction rises to $16,100 (Revenue Procedure 2025-32, October 2025); every tool here reads the same official figures. See our methodology for how each value is sourced.
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