If you drove for Uber, delivered for DoorDash, or sold crafts on Etsy this year, there's a good chance you owe money you haven't set aside.
Gig platforms don't withhold taxes the way a regular employer does.
Every dollar you earned lands in your account untouched—until the IRS comes calling.
That surprise is why so many first-time gig workers get hit with a tax bill in April that they can't cover.
The money felt like income, but a chunk of it was never really yours.
When you work for a traditional employer, they pay half of your Medicare and Social Security taxes and withhold the other half from your paycheck.
As an independent contractor, you cover both halves yourself.
That's 15.3% on top of regular income tax, and it applies to your net profit, not your gross earnings.
Net profit is the number that trips people up.
If you earned $20,000 driving but spent $3,000 on gas, maintenance, and phone bills, you only owe taxes on $17,000.
The catch is you have to track those expenses.
Miss them, and you're taxed on money you never kept.
Mileage is usually the biggest deduction for drivers.
The standard rate for 2024 was 67 cents per mile, and it adds up fast.
A driver logging 15,000 business miles can deduct over $10,000—which can wipe out a surprising amount of tax liability.
A notebook, an app, anything with dates and odometer readings beats a vague estimate if you get audited.
Then there's the quarterly payment system.
The IRS doesn't wait until April for self-employed workers.
If you expect to owe $1,000 or more, you're supposed to send estimated payments four times a year.
Skip them and you can face an underpayment penalty, even if you pay everything you owe in the spring.
Here's the part most people don't realize: gig work can also affect health insurance.
If you buy coverage through Healthcare.gov, your subsidy is based on your income.
A side hustle that pushes you past an income threshold can shrink that subsidy, and you may have to pay some of it back at tax time.
Set aside 25% to 30% of every payout in a separate savings account.
Track expenses weekly, not in a panic in March.
And if your gig income is growing, talk to a tax preparer who knows self-employment rules—the fee often pays for itself.
The gig economy sold workers on flexibility and being your own boss.
What it didn't mention is that you also became your own payroll department, and nobody's doing that job for you.
The honest takeaway: a side hustle is a small business, and small businesses pay taxes differently.
Final Thoughts
Treat every deposit like 70 cents belongs to you and 30 cents belongs to the government, and April stops being a crisis.