If you drive for Uber, deliver for DoorDash, or sell on Etsy, there's a number on your tax return that most people never think about until it's too late.
It's called self-employment tax, and it runs about 15.3% of your net profit on top of regular income tax.
When you worked a regular job, your employer quietly paid half of your Social Security and Medicare taxes.
When you're your own boss, you cover both halves yourself.
On $40,000 of profit, that's roughly $6,000 just for those two programs, before federal or state income tax even enters the picture.
Gig apps usually don't withhold taxes from your pay.
The money hits your account, and it feels like yours.
But the IRS treats you as self-employed, which means no one is setting anything aside on your behalf.
Spend it all, and April becomes a very bad month.
The fix is less painful than people expect.
Every time a payment lands, move 25% to 30% into a separate savings account.
Yes, it hurts to watch that money walk away.
But it's not yours, it never was, and moving it now beats scrambling for it later.
Then there's the deduction side, which most new gig workers ignore for years.
You can write off mileage at the standard rate, which for 2024 was 67 cents a mile.
Drive 12,000 miles for work and that's over $8,000 off your taxable income, usually a bigger break than tracking gas and repairs.
Your phone bill, a portion of your internet, insulated delivery bags, phone mounts, parking and tolls on the job, and the fees the platforms charge you can all count.
So can health insurance premiums if you're buying your own coverage.
Keep receipts and a simple log, because deductions without records are just wishes.
One more thing that trips people up: if you earned more than $400 in net self-employment income, you're required to file and pay.
Plenty of side hustlers assume a small operation flies under the radar, then get a letter a year later with penalties and interest attached.
The IRS expects you to pay as you earn, generally four times a year, not in one lump in April.
Miss them and you can owe an underpayment penalty even if you pay everything in full.
Setting up a free IRS account online takes a few minutes and makes estimating these payments far easier.
If the math feels overwhelming, a tax preparer who works with gig workers often costs a few hundred dollars and can find deductions that cover their own fee.
Software works fine for simple situations, but mixed income streams get messy fast.
The gig economy sells freedom, and it delivers some.
It just doesn't deliver a payroll department.
None of this is glamorous, and none of it is optional.
The workers who treat that 25% set-aside like a bill due every week are the ones who sleep fine in April.
Final Thoughts
Everyone else is borrowing from a future version of themselves at a terrible interest rate.