Last January I decided to "make a little extra money on the side." I signed up for DoorDash on weekends and took a few Upwork projects during slow weeks at my day job. By December, I had $18,247 in deposits across three apps. I felt pretty good about myself.
Then TurboTax asked me to enter my 1099s. I typed in the numbers. The screen blinked. Then it showed me a number I was not prepared for: $5,384 in federal taxes owed. Plus $800 in state taxes. Plus a $210 underpayment penalty because I had not sent quarterly estimated payments.
I stared at the screen for a solid minute. That was 30% of everything I earned. I had not saved a dime for taxes. I had spent it. On what? I could not even tell you. A new laptop. Some dinners out. Probably $400 in DoorDash delivery fees ordering food while I was delivering food to other people. The irony was not lost on me.
When you are a W-2 employee, your employer pays half of your Social Security and Medicare taxes. You pay 7.65%, they pay 7.65%. When you are a 1099 contractor, you pay both halves. That is an extra 15.3% right off the top, before federal income tax even enters the chat.
| Tax | W-2 Employee | 1099 Contractor | Difference |
|---|---|---|---|
| Federal income tax (22% bracket) | 22.0% | 22.0% | Same |
| Social Security + Medicare (employee half) | 7.65% | 7.65% | Same |
| Social Security + Medicare (employer half) | 0% | 7.65% | +7.65% |
| Total before deductions | 29.65% | 37.30% | +7.65% |
That 7.65% is called self-employment tax. On $18,000, it is $1,377. You can deduct the employer half (about $689) as a business expense, but you still owe the full amount upfront. And that is before we even talk about federal income tax.
Here is exactly how my $18,247 turned into $5,384 in federal taxes:
| Item | Amount |
|---|---|
| Gross 1099 income | $18,247 |
| Minus: business mileage (3,200 miles × $0.67) | -$2,144 |
| Minus: phone, equipment, supplies | -$680 |
| Minus: home office (Upwork portion) | -$420 |
| Net self-employment income | $15,003 |
| Self-employment tax (15.3% of $15,003) | $2,295 |
| Minus: deductible employer portion | -$1,148 |
| Adjusted net income | $13,855 |
| Federal income tax (12% bracket on top of W-2) | $1,663 |
| Self-employment tax (after deduction) | $1,148 |
| QBI deduction (20% of net income) | -$2,771 |
| Total federal tax owed | $5,384 |
That $5,384 is 29.5% of my gross $18,247. After state taxes ($800) and the underpayment penalty ($210), I cleared about $11,800. Still worth it, but a lot less exciting than the $18,000 I thought I had made.
I almost filed without tracking my mileage. That would have cost me $2,144 in deductions. Here is what I actually deducted:
Without deductions, my taxable income would have been $18,247. With deductions, it was $15,003. That saved me about $780 in taxes. Track everything. Every mile. Every receipt. Every $8 parking fee. It matters.
If you expect to owe $1,000 or more in taxes from self-employment income, you are supposed to send quarterly estimated payments to the IRS. The deadlines are April 15, June 15, September 15, and January 15.
I did not know this. I thought I would just pay at tax time like always. The IRS disagrees. They charged me a $210 underpayment penalty for not sending quarterly payments. It is not huge, but it is annoying and completely avoidable.
Here is the simple rule: take your expected net self-employment income, multiply by 25-30%, and send that amount in four equal chunks. If you make $1,000/month net, send $250-300 every quarter. Set a calendar reminder. It takes 10 minutes on IRS Direct Pay.
I learned the hard way. Here is my current system:
Some people tell me they just do not report gig income. "It is cash. Who will know?" The platforms know. DoorDash, Uber, Upwork, Fiverr — they all send 1099s to the IRS. If you do not report it, the IRS already has a record of it. You are not hiding anything. You are just creating a mismatch that triggers an audit.
And if you get audited, the penalties are brutal: 20% of the underpaid tax plus interest. On $5,000 owed, that is $1,000 plus 5-8% annual interest. Just report it, deduct what you can, and pay what you owe. It is cheaper than the alternative.
Plug in your 1099 income, deductions, and tax bracket to see what you will actually keep.
Try the Hourly to Salary Converter →Technically, if you expect to owe less than $1,000 in total tax from self-employment, you do not need to file quarterly. But it is still good practice. If you make $3,000 and owe $900 in tax, you are close to the threshold. One good month could push you over. I would set aside 25% anyway and pay quarterly if you think you might exceed $1,000.
Only the business-use portion. If you drive 60% for gig work and 40% personal, you can deduct 60% of gas, maintenance, insurance, and depreciation. But the standard mileage rate ($0.67/mile in 2026) already includes depreciation, gas, and maintenance. For most people, the standard rate is simpler and often more generous. Run both methods and pick the higher deduction.
Your W-2 employer withholds taxes for you. Your 1099 income is extra and not withheld. You can increase your W-2 withholding to cover the 1099 tax, which avoids quarterly payments. Fill out a new W-4 and add extra withholding. Or just pay quarterly on the 1099 income. Either way works.
For most side hustlers under $50,000/year, no. An LLC does not reduce your taxes. It just limits liability. If you are driving for DoorDash, your personal auto insurance and the platform's coverage are your real protection. An LLC costs $100-500/year to maintain and adds bookkeeping complexity. Consider it when you hit $30,000+ in net income or have significant liability risk.