How Much to Set Aside for Side Hustle Taxes
The panicked version of this question is: I made side money and spent it. How much do I owe? The useful version is: what should I move to a separate account so I do not confuse spendable cash with tax money I may still need?
Last updated June 8, 2026
Reserve is not your tax bill
A tax reserve is money you label do not spend until a preparer or your return tells you otherwise. It is planning math. Sidequity calculators let you pick reserve percentages; they do not file taxes or guarantee accuracy.
Starting ranges many planners use
- Light side gig, W-2 covers most living expenses: often 20 to 25 percent of side net profit as a starting reserve.
- Steady side profit ($500+ a month net): often 25 to 30 percent until a pro adjusts.
- Side is your main income: higher reserves may apply; get professional help early.
Percentages cover federal income tax planning, state tax if applicable, and self-employment tax on profit. Your real rate depends on total household income, deductions, and state rules.
Worked example: $400 net per month from delivery
Illustrative only. $400 net profit after gas and fees. A 27 percent planning reserve is $108 a month ($1,296 a year set aside). Spendable side cash for goals is roughly $292 a month until you confirm taxes. Run after-tax side income with your own percentages.
Worked example: W-2 job plus $900 freelance net
Illustrative. Your employer withholds on salary. Freelance net still adds taxable profit. $900 net with a 30 percent reserve is $270 a month set aside ($3,240 a year). Your W-2 withholding does not automatically cover freelance profit.
Quarterly estimated payments in plain English
If you expect to owe enough tax beyond paycheck withholding, the IRS may expect estimated payments four times a year (typically April, June, September, and January). Side earners often fund those from the reserve account as deadlines approach. Confirm amounts with a tax professional.
If you are reading this near mid-June, the Q2 deadline is often around June 15. Missing deadlines can add penalties; that is a filing question for a pro, not Sidequity.
If you already spent the side money
Stop spending new payouts until you model a reserve on recent net. Talk to a preparer about the current year and payment options. Future you is helped by transferring reserve the day after each payout, not by hoping April is gentle.
Simple workflow
- Open a separate savings account.
- After each payout, move reserve percent of net profit immediately.
- Track gross, expenses, and miles monthly.
- Revisit reserve percent after any big income change.
- Use tax basics for orientation; use a CPA for filing.
This is an estimate, not advice
Every result here is a rough model based only on the numbers you enter. Sidequity is an informational tool and does not provide professional, tax, legal, investment, or financial advice, and it makes no income guarantees. Any tax set-aside is a planning placeholder, not a tax calculation.
For decisions that affect your money, taxes, or business, review your situation with a qualified professional. See our full disclaimer.
Frequently asked questions
Is 30 percent enough for side hustle taxes?
Sometimes for moderate side profit; sometimes not for high earners or certain states. Treat it as a starting placeholder, not a rule.
Do apps withhold taxes?
Most gig apps pay gross; you handle taxes on profit. W-2 jobs withhold; side profit usually does not.
What about state taxes?
Some states have no income tax; others do. Add a state assumption in the after-tax calculator or ask a preparer.
Is this legal or tax advice?
No. Educational planning only. Hire a qualified preparer for your return and payment amounts.
This guide was last updated June 8, 2026. Back to all guides.