Side Business Calculator

Runs entirely in your browser — your numbers are never sent to a server.

Your state (for state income tax estimate)

2026 single-filer estimates. Excludes state standard deductions — actual tax may be lower. Consult a CPA for filing advice.

Hustle name

Income type

Monthly gross ($)

Monthly expenses ($)Software, materials, supplies, platform fees

Business miles (monthly)Deducted at $0.725/mi — don't also include gas in expenses