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Estimated Tax Calculator — Self‑Employed (2025)
Quick estimate of quarterly federal income + SE tax. Uses IRS 2025 brackets, standard deduction, and Social Security wage base. For planning only — not tax advice.
Gross income = all money your business brings in before expenses (sales, payments from clients, etc.).
What is taxable profit? It’s what’s left after expenses. Example: $50k sales – $20k expenses = $30k taxable profit. QBI gives a 20% deduction on that taxable profit if you qualify.
State taxes not calculated. Many states don’t allow QBI.
Estimated 2025 total federal tax
$0
Quarterly payment (Form 1040‑ES)
$0
How this was figured
Assumptions
- Federal only. No state tax.
- Standard deduction only.
- Self‑employment tax: 92.35% of taxable profit × Social Security/Medicare rates.
- Half SE tax reduces AGI.
- QBI (if on) = 20% of taxable profit after half‑SE, capped at 20% of taxable income.
Sources: IRS Rev. Proc. 2024‑40; SSA 2025 COLA; IRS Topic 554.
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