Self‑Employment Tax Calculator (2025)

Self‑Employment Tax Calculator (2025) Calculates Social Security & Medicare self‑employment (SECA) tax on net earnings and suggests quarterly estimated‑tax payments. Uses 2025 IRS limits: 12.4 % Social Security (up to $168,600 of SE income) + 2.9 % Medicare + 0.9 % Additional Medicare above threshold. Net Earnings from Self‑Employment ($)...

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