2026 Federal Tax Planning

How Much Will I Owe?

See a first-pass federal estimate from business profit, paycheck income and payments.

Start with your business numbers

Use full-year 2026 totals. Enter 0 for an amount that does not apply.

How will you file?Use the status you actually qualify for.

How much will your business bring in?Gross sales or income before business expenses.

How much in eligible business expenses?Business expenses only—not personal purchases.

Your taxable paycheck incomeAnnual W-2 Box 1 amount, not take-home pay.

Your Social Security wagesAnnual W-2 Box 3 total across your jobs. This limits your own self-employment Social Security tax.

Your spouse’s taxable paycheck incomeAnnual W-2 Box 1 total.

Federal income tax withheldAll household W-2 Box 2 amounts; not Social Security or state tax.

Federal estimated tax already paidPayments toward tax year 2026.

Does this simple business setup fit you?One active Schedule C business; U.S. resident, under 65 and not blind or someone’s dependent; no other income, business-loss carryovers, retirement/health-insurance deductions, or itemizing. Paycheck taxable wages equal Medicare wages. No community-property allocation.

This tool calculates in your browser tab and does not submit these amounts. No SSNs, bank details or tax documents are needed.