W-2 + one Schedule C activity · 2026 federal estimate
Estimate federal tax, AGI, and balance due before tax time
This free 2026 tax planner combines wage, business, withholding, and estimated-payment totals into a bounded federal estimate with a plain-language breakdown. Built for early planning conversations — not tax-return preparation, filing, or professional advice.
How it works
Enter the essentials
Add filing status, combined W-2 boxes, federal payments, Schedule C income, and expenses.
Calculate once complete
The estimate stays locked until every required amount has a valid answer, including $0 where something does not apply.
Review the result
See the estimated balance or refund first, then review tax totals and how the estimate was calculated.
This planner is a good fit when
- • You are planning for tax year 2026.
- • The estimate combines W-2 income and one Schedule C activity.
- • The standard deduction is appropriate for the estimate.
- • You want a directional federal estimate before filing.
Use another method when you need
- • State or local tax calculations
- • Itemized deductions, dependents, or investment income
- • QBI or other complex tax situations
- • Tax-return preparation, filing, or professional advice
Included in the planner
- W-2 plus one Schedule C activity
- Estimated AGI and federal tax
- Estimated balance due or refund
- Plain-language calculation breakdown
- Browser-only storage
- No account required
Frequently asked questions
Common questions about estimating 2026 federal tax from W-2 wages and one Schedule C business.
- What does the 2026 Tax Planner estimate?
- It combines W-2 wages, one Schedule C business, federal withholding, and estimated payments into a bounded 2026 federal estimate — adjusted gross income, total federal tax, and an estimated balance due or refund. The result includes a plain-language calculation breakdown. It is designed for early planning conversations, not tax-return preparation or filing.
- Who is the 2026 W-2 + Schedule C tax planner for?
- Tax professionals and taxpayers who want a directional federal estimate when income is mostly W-2 plus one Schedule C activity and the standard deduction applies. It fits solo practitioners, side-gig W-2 earners, and CPAs sketching a client conversation before filing season.
- Is my tax data stored on a server?
- Plans are saved only in your browser on the device where you create them. No account is required, and tax numbers are not uploaded to Tax Clarity Lab servers as part of the planner workflow.
- What does the planner not include?
- State and local tax, itemized deductions, dependents, investment income, QBI, capital gains beyond the supported scope, and multi-entity or multi-owner structures are outside the current estimate. Use professional preparation software or a qualified preparer when those items apply.
- Is this tax advice or a filing position?
- No. The planner produces an illustrative federal estimate for discussion only — not tax advice, not a filing position, and not a substitute for a completed return.
- How does this relate to the S-Corp Payroll Tax Calculator?
- The planner estimates overall 2026 federal tax on W-2 plus Schedule C facts. The separate S-Corp Payroll Tax Calculator models only the payroll-tax difference between Schedule C and S corporation on your entered salary and costs — a narrower input for entity-structure conversations.
Private by default
Plans are saved only in the browser on the device where you create them. No account is required, and tax numbers are not uploaded to an account.
Considering an S corporation?
Our free S-Corp Payroll Tax Calculator models the payroll-tax difference between Schedule C and S corporation using your entered salary and costs — with optional advisory discussion notes and without a broad "savings" claim.