Each quarterly payment
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Due Apr 15 · Jun 15 · Sep 15 · Jan 15
Self-employment tax
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Federal income tax
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Less: tax already withheld
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Estimated total due for the year
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Estimate only — actual payments depend on your full return, state taxes, and safe-harbor rules (paying 100–110% of last year's tax avoids penalties even if you owe more). We set exact, penalty-proof payments for clients.