See exactly how much you owe in self-employment tax and income tax on your side hustle — plus a quarterly payment plan so you never get hit with penalties.
Step 1 of 3
Step 1: Your Day Job
W-2 employment income and withholding
If you have a W-2 job alongside your side hustle, enter it here. We need this to calculate your correct tax bracket and SE tax.
Enter $0 if your side hustle is your only income.
Step 2: Your Side Hustle
Self-employment income and expenses
Enter your total side hustle numbers for 2025. If you have multiple side hustles, combine them.
Common Expenses Quick-Add (optional)
Standard mileage rate: $0.70/mile for 2025. We'll calculate the deduction.
Enter the square footage of your dedicated office space. Max 300 sq ft for simplified method.
Step 3: Payment Preferences
How would you prefer to handle your tax payments?
Quarterly: Make 4 payments directly to the IRS. W-4: Have your employer withhold extra each paycheck to cover side hustle taxes.
TaxDecoded
This estimate is for educational and informational purposes only. It does not constitute tax advice. Consult a qualified tax professional for guidance.
Built by TaxDecoded
This tool is for educational and informational purposes only and does not constitute tax advice. Self-employment tax calculations involve many variables. Consult a qualified tax professional for advice specific to your situation.