What does a 1099 quarterly tax calculator estimate?

It estimates a self-employment tax reserve, federal income tax reserve, state tax reserve, and a suggested quarterly payment based on user-entered assumptions.

Is this the same as Form 1040-ES?

No. This is a planning calculator. The IRS Form 1040-ES instructions and a qualified tax professional should be used for filing and payment decisions.

Free 1099 tax planning tool

Estimate quarterly tax payments before the next IRS deadline.

Enter your 1099 profit, W-2 wages, payments already made, and reserve assumptions. Get a simple quarterly tax estimate, monthly set-aside target, and deduction checklist.

Filing status Net 1099 profit expected this year W-2 wages already expected Federal withholding or estimates already paid Federal income tax reserve

State/local tax reserve

Social Security wage base planning assumption Remaining quarterly payments this year Work type for deduction checklist

Planning, not filing advice

Use this estimate before you send money or talk to a tax professional.

The calculator uses common self-employment tax rules and user-entered reserve rates. Your actual payment can change based on deductions, credits, filing status, prior-year tax, state rules, and IRS updates.

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Who this is for

Freelancers, consultants, creators, contractors, solo business owners, and side-hustle workers who receive 1099 income and want a simple quarterly tax reserve target.

What it estimates

Self-employment tax, federal income tax reserve, state/local tax reserve, total tax set-aside, amount still to reserve, quarterly payment estimate, and monthly set-aside target.

How to use the result

Use the estimate to plan cash flow, prepare questions for a tax professional, and decide whether to review IRS Form 1040-ES instructions before the next payment date.