Free Tools
Quick, honest estimates — not tax advice. Each one tells you exactly what it doesn't account for, and points you to a real conversation when the numbers get specific to you.
Estimate how much you could save on self-employment tax by electing S-corp status.
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See if your paycheck withholding is on track to match what you'll actually owe.
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California's own withholding form — separate from the federal W-4, and easy to get wrong.