Estimate federal and state income tax, FICA and take-home pay, compare business entities, plan quarterly payments — then fill official IRS forms privately in your browser.
Fill official IRS PDFs (2025 revisions, the latest published) right in your browser and download one merged PDF. Print, sign and mail — or use IRS Free File to e-file.
Mail paper returns to the address for your state and form: IRS — Where to file paper tax returns. Prefer e-filing? Check IRS Free File and business e-file providers.
Built on official IRS and state figures, designed for clarity, and private by default.
2026 brackets, FICA, EITC, child and dependent credits, capital gains rates, NIIT and state income tax for every state and DC.
Compare sole proprietor, S-Corp and C-Corp taxes with QBI income limits and self-employment tax.
Safe-harbor 1040-ES payments and due dates for freelancers and the self-employed.
Official IRS PDFs filled in your browser and merged into one file. No account, no upload.
Calculators use tax year 2026 figures from IRS Rev. Proc. 2025-32 (including One Big Beautiful Bill Act changes) and the SSA $184,500 wage base. The return wizard uses 2025 figures because the latest official IRS forms are the 2025 revisions.
Your marginal rate is the rate on your last dollar of taxable income. Your effective rate is total tax divided by total income — always lower because of progressive brackets.
Yes. No tax on tips (up to $25,000), no tax on overtime premium pay (up to $12,500, or $25,000 joint), car loan interest (up to $10,000) and the $6,000 senior deduction are modeled with their income phase-outs, as on Schedule 1-A.
State tax uses each state's 2026 brackets, standard deduction and personal exemptions (2025 in the wizard). Local income taxes, credits, recapture rules and special phase-outs are not modeled; nine jurisdictions without a wage tax are flagged.
S-Corp owners pay payroll tax only on a reasonable salary; the remaining profit avoids the 15.3% self-employment tax. The salary must be reasonable for the work performed.
The 20% qualified business income deduction is limited above $201,750 of taxable income ($403,500 joint) for 2026: specified service businesses phase out completely over the next $75,000 ($150,000 joint), and other businesses become limited by W-2 wages.
It fills the official 2025 IRS PDFs — Form 1040 with Schedules 1, 1-A, 2, 3, B, C, SE, 8812 and Form 8995, or Forms 1120, 1120-S and 1065 with K-1s — and merges them into one PDF. You review, sign and mail it. It covers common situations only.
Only in your own browser: drafts autosave to localStorage on your device so you can resume later. Clear the draft at any time. Nothing is sent to a server.
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