Terms (the short version)
- Free for any website, including commercial. Keep the "Powered by FedCalc" link intact.
- The calculator is an educational estimate, not tax advice — the same disclaimer applies to embedded use.
- We may update the calculator for accuracy; your embed stays current automatically.
- Want a custom size, a specific calculator, or a co-branded version? Get in touch.
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FedCalc Editorial Team
Free, source-cited calculators for the 2026 One Big Beautiful Bill Act. Estimates only — not tax advice.