Why Side Hustle Income Is Taxed Differently
Nothing is withheld from side-hustle income, and self-employment tax is separate from regular income tax. Setting money aside as you earn makes the eventual bill visible before it is spent.
The 25-30% Rule
Many US side hustlers use a planning set-aside of 25% to 30% of profit; higher earners or people in states with income tax may need more. This is a planning rule, not personal tax advice.
Set Aside On Profit, Not Revenue
Net platform fees and legitimate business expenses first, then set aside a percentage of what remains.
A Real Month
| Item | Amount |
|---|---|
| Side hustle revenue | $1,200 |
| Business expenses (supplies, mileage, fees) | −$200 |
| Profit | $1,000 |
| Set aside at 27% | $270 |
| Quarterly set-aside (3 months) | $810 |
Set aside on the $1,000 profit, not the $1,200 revenue — the $200 in real expenses was never taxable income in the first place.
- Add up revenue for the period.
- Subtract real, documented business expenses to get profit.
- Multiply profit by 25-30% (27% is a reasonable middle estimate for most side hustlers).
- Move that amount to a separate savings account the same week the money arrives.
- Repeat quarterly and adjust the percentage once you know your actual tax bracket.
Quarterly Estimated Payments
If you expect to owe $1,000 or more, estimated tax payments may be required. Check current IRS Form 1040-ES instructions and due dates.
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Educational content, not tax advice. Tax rules vary by state and change often — confirm your specific situation with a licensed tax professional or CPA before setting aside or filing.
Sources: IRS: Self-Employed Individuals Tax Center and IRS: Estimated Tax FAQs.
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FAQ
How much should I set aside for side hustle taxes?
A common US planning rule is 25-30% of profit; your situation may require more or less.
Do I owe taxes on a small side hustle?
Tax obligations depend on net earnings and other circumstances; consult current IRS guidance.
Is this tax advice?
No. This is educational information, not tax, legal, or accounting advice.
DaveWays content is educational and does not replace professional financial, legal, tax, medical, or mental-health advice.