If you drive for a rideshare app, deliver food, or sell crafts online, the money that landed in your account all year was never really yours.
Nobody withheld taxes from those payments.
That means the government is now expecting a chunk of it back, and many gig workers are finding out the hard way.
Roughly 1 in 4 American workers now earns some income from gig or freelance work, and a large share of them owe self-employment tax on top of regular income tax.
That self-employment tax runs 15.3 percent, covering Medicare and Social Security, and it hits gig income even when the earnings are small.
A delivery driver who pulled in $30,000 after expenses can owe thousands in self-employment tax alone, plus federal and sometimes state income tax.
Since no employer split that bill, the entire weight lands on one person.
There's a second trap buried in the paperwork.
Gig platforms often send a 1099 form reporting gross earnings, but that number doesn't subtract your mileage, phone bills, or the insulated bag you bought.
If you don't track those costs, you can end up taxed on money you spent just to do the job.
The mileage deduction is the single biggest break most drivers miss.
The IRS standard rate for 2025 is 70 cents per mile, and 20,000 work miles translates to a $14,000 deduction.
Skip that log, and you're handing the IRS thousands you didn't have to pay.
Quarterly payments catch another wave of people off guard.
Unlike salaried employees, gig workers are supposed to pay estimated taxes four times a year.
Miss those deadlines and the IRS adds penalties and interest, even if you pay everything you owe in April.
Health insurance is the cruelest line item.
Many gig workers buy coverage on the marketplace, and without an employer subsidy, premiums can eat 15 to 20 percent of take-home pay.
The self-employed health insurance deduction helps, but it doesn't erase the sting.
Accountants say the fix isn't complicated, just relentless.
Set aside 25 to 30 percent of every payout the moment it arrives.
Open a separate bank account for taxes so the money never feels spendable.
Gig companies classify workers as independent contractors, which saves the platforms payroll taxes and benefits.
Workers absorb the cost, and the tax code simply wasn't built for a workforce paid in $12 increments with no safety net underneath.
If you're behind on gig taxes, help exists.
IRS payment plans, currently running around 7 percent interest, are far cheaper than ignoring notices.
The agency can also offer an Offer in Compromise for people who genuinely can't pay, though qualifying is strict.
Our take: the gig economy sells freedom and bills you later.
If you earn 1099 income, treat tax withholding as a non-negotiable bill, not an afterthought, because the IRS will always collect.
Final Thoughts
Budget for it now, or the April surprise will do it for you.