A clearer starting point

1099 quarterly tax estimator

See how projected business income and expenses may affect your federal tax plan. This tool does not send or store your entries.

Current calculation year: 2026. Tax figures can change from year to year.

For independent contractors and sole proprietors

Plan with a little more confidence.

Enter your expected totals for all of 2026, not just this quarter. We’ll show a planning estimate and an average four-period amount. No name, email, Social Security number, or tax documents are needed.

What this covers2026 federal income tax and self-employment tax for one Schedule C business owner. State and local taxes are separate.

1 Your business and filing situation

Expected 2026 business revenue Before expenses; include 1099 payments and other business receipts. Expected deductible business expenses Enter your reasonable estimate, excluding personal expenses. 2026 filing status Your expected W-2 wages Only this business owner’s wages subject to Social Security tax.

2 Other income and tax offsets

If you have other taxable income or federal tax already withheld, adding it makes the estimate more useful. Enter zero where an item doesn’t apply.

Other ordinary taxable income For example, spouse’s wages or taxable interest; don’t repeat your wages above. Other adjustments to income Exclude the deductible half of self-employment tax; we calculate that. Deduction method Include a simplified qualified business income (QBI) deduction estimate if this business qualifies. This calculation is limited to lower-income cases without special QBI limitations. Expected federal tax credits Enter credits you reasonably expect to qualify for; leave refundable credits out of this simplified estimate. Expected 2026 federal income tax withholding Total for the year from W-2s or other sources, including a spouse if filing jointly.

3 Prior-year comparison (optional)

These figures help compare the general prior-year payment target. If you don’t know them, leave them blank.

2025 tax for estimated-payment purposes Use the applicable amount under the 2026 Form 1040-ES instructions, not your refund or amount owed. 2025 adjusted gross income (AGI) Needed to apply the higher-income prior-year rule. Federal estimated payments already made for 2026 Shown as progress toward the annual target, not allocated to a specific due date.

Based on the 2026 IRS Form 1040-ES and 2026 Social Security wage base. This tool does not send your entries to us.

1099 quarterly tax estimator

Plan with a little more confidence.

A starting point for your tax plan

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