Side Hustle Tax Calculator

Estimate 2026 tax on your side gig income — federal, 15.3% SE, and state — with room for your W-2 day-job.

Add your side-hustle 1099 income, your day-job W-2, and any expenses. We stack them into one accurate estimate.

Self-employed income & expenses

Estimate federal + SE + state tax for the 2026 tax year in one pass.

Estimated total tax bill
$14,347
Refund / owed
-$14,347
Effective rate
23.9%

Detailed breakdown

Mileage deduction$5,360
Total business expenses$7,860
Net self-employment income$52,140
Self-employment tax (15.3%)$7,367
½ SE deduction (above-the-line)$3,684
Adjusted gross income$48,456
Taxable income$33,856
Federal income tax$3,831
State tax (est.)$3,149
Quarterly estimated payment$3,358
Marginal rate21.3%

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