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What you'll find here

Calculators

Federal income tax, state income tax, capital gains, estate and gift tax, QBI, W-4 withholding, refund vs. owed, reverse tax (target take-home), and self-employment tax. Each tool uses 2026 IRS-sourced brackets and thresholds.

Comparisons

State vs. state (marginal and effective rates across any two of 50 states + DC), single vs. married filing status, and standard vs. itemized deduction chooser — all interactive, all source-verified.

State Guides

Per-state tax overviews for all 50 states and D.C., covering income tax structure, key rates, credits, and notable rules. Updated for 2026 with OBBBA changes.

Worksheets & Wizards

Printable deduction worksheets, year-end tax planning checklists, multi-state residency decision trees, and other fillable tools you can download or print.

Tip: Use specific keywords

Try terms like capital gains, QBI, state tax, estate, withholding, residency, or standard deduction. The search matches both tool titles and URL slugs, so /tools/gift-gst/ also appears when you type gift.

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