Terms of use

This is not tax advice

Everything here is general educational information about federal and state tax provisions. It is not tax, legal, or financial advice, and using this site does not create a professional relationship of any kind. Your return depends on facts these calculators cannot see. Consult a qualified tax professional before acting.

Accuracy and limitations

The calculators implement IRS Schedule 1-A as published, and every state entry cites the source it was checked against. Even so, tax law changes, sources are revised, and errors are possible. Figures are estimates. You are responsible for what you file.

Where a state’s treatment could not be confirmed, the site says so. Do not read an absence of information as a statement that no tax is due.

No warranty and no liability

This site is provided “as is”, without warranty of any kind, express or implied. To the fullest extent permitted by law, we accept no liability for any loss arising from use of, or reliance on, anything published here — including underpaid tax, penalties, interest, or a missed deduction.

No government affiliation

We are not affiliated with, endorsed by, or connected to the Internal Revenue Service, the United States Department of the Treasury, or any state revenue department. Links to official sources are provided so you can verify claims independently.

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Last updated 24 August 2026.