US Federal Tax Estimate Planner (2025 Return + 2026 Planning)

Plan your federal tax picture without opening a giant tax program.

This Excel workbook helps you estimate a rough US federal ordinary income tax result for 2025 or 2026, see your marginal bracket, compare three what-if scenarios, and prepare a filing checklist before you use official IRS forms, tax software, or a qualified professional.

What's included:

- US federal tax estimate dashboard

- 2025 and 2026 federal bracket support

- Standard deduction lookup by filing status

- Bracket-by-bracket tax calculation

- Refund / amount due planning line

- Three-scenario comparison planner

- Filing preparation checklist

- Official IRS source links

- Quick start guide, disclaimer, and personal-use license

Good for:

- Employees who want a simple federal tax estimate

- Side-income earners who want a planning snapshot

- Creators and freelancers who want to compare withholding scenarios

- Anyone who wants a clean tax planning worksheet before filing season

Important limits:

This is a federal educational estimate only. It is not tax advice and it does not file your return.

The workbook does not calculate state/local taxes, self-employment tax, AMT, NIIT, capital gains preferential rates, qualified dividend treatment, most credits, or complex phase-outs. Always verify official IRS guidance and consult a qualified professional before filing.