1099個人事業主・フリーランス向け15.3%自営業税、Schedule C控除、四半期予定納税額の算出。
Based on your numbers, set aside approximately 27% of every client invoice into a separate high-yield business savings account for quarterly taxes.
SE Tax = (Net Profit × 0.9235) × 15.3% (SS 12.4% up to $168,600 + Medicare 2.9% + Add'l 0.9%)Self-employed earnings are evaluated under IRC Section 1401 and Schedule SE. After computing net profit (Gross 1099 Income minus Schedule C Deductions), the 92.35% statutory multiplier applies. Precision IEEE-754 decimal arithmetic computes exact quarterly estimated payments without roundoff error.
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