On $16,000 of DoorDash 1099-NEC pay, 3,500 miles in each half of 2026, and $300 of other costs, profit is $10,502.50. Federal tax is $1,483.95, or $9.27 of every $100 paid. The quarterly lines use the same safe harbor as the quarterly calculator.
Federal tax
$1,483.95
Federal tax on this pay is $1,483.95. Set aside $9.27 per $100.
How the total splits
Mileage is 72.5 cents a mile for January 1 through June 30, 2026, and 76 cents from July 1 through December 31. Actual car expenses for the same miles are not deducted on top. Federal tax and the per-$100 line are the tax caused by this profit, on top of any W-2 wages you entered. The quarterly lines are the safe harbor for the whole return, after withholding. Each voucher is one quarter of the smaller of 90% of this estimate and 100% of last year's tax, after withholding. The January voucher absorbs the rounding cent. The 20% QBI line is the simplified deduction: 20% of profit after the deductible half of self-employment tax, and at least $400 when that profit is $1,000 or more, capped at 20% of taxable income before the deduction. It does not apply the W-2 wage or specified-service limits. QBI does not reduce self-employment tax.
| Mileage deduction | $5,197.50 |
|---|---|
| Other expenses | $300.00 |
| Net profit | $10,502.50 |
| Self-employment tax | $1,483.95 |
| Income tax on this profit | $0.00 |
| Federal tax | $1,483.95 |
| Federal tax per $100 earned | $9.27 |
| Estimated tax still to pay | $1,335.56 |
| April 15, 2026 | $333.89 |
| June 15, 2026 | $333.89 |
| September 15, 2026 | $333.89 |
| January 15, 2027 | $333.89 |
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Profit = 1099-NEC − miles × the 2026 business rate − other expenses. Federal tax is self-employment tax plus income tax on that profit.
The 2026 business standard mileage rate is 72.5 cents a mile from January 1 through June 30, and 76 cents from July 1 through December 31. Enter the miles in each half. The deduction is those miles times the rate for that half. You cannot also deduct gas, insurance, or depreciation for the same miles. Medical and charitable mileage use different rates and are not in this file.
Phone, hot bags, and other ordinary costs are the dollars you type. Nothing here inserts a typical phone bill. A W-2 job uses the Social Security wage base first, and its wages are in the income-tax math. Federal tax and the per-$100 line are the tax caused by the DoorDash profit, on top of those wages. The quarterly amount is the safe harbor for the whole return, after withholding.
Last year's tax of zero means no estimated payment when that return covered a full year and the tax really was zero. Otherwise the voucher is the smaller of 90% of this year's tax and 100% of last year's tax, or 110% when prior AGI is over the threshold. The qualified tips deduction is a separate Form 1040 calculation and is not applied here. State tax is extra.
| Profit | $3,315.00 |
|---|---|
| Self-employment tax | $468.39 |
| Federal tax | $468.39 |
| Per $100 earned | $9.37 |
| Profit | $10,502.50 |
|---|---|
| Self-employment tax | $1,483.95 |
| Federal tax | $1,483.95 |
| Per $100 earned | $9.27 |
| Estimated tax still to pay | $1,335.56 |
| Profit | $32,350.00 |
|---|---|
| Self-employment tax | $4,570.91 |
| Income tax | $1,117.16 |
| Federal tax | $5,688.07 |
| Per $100 earned | $11.85 |
| Federal tax on the DoorDash profit | $2,420.96 |
|---|---|
| Estimated tax still to pay | $4,536.86 |
There is no single percent. Divide the federal tax on your profit by the 1099-NEC total and multiply by 100. That is the per-$100 line. It includes self-employment tax and income tax, and it leaves out state tax. At a few thousand dollars of profit the standard deduction often wipes out income tax, so the set-aside is mostly self-employment tax.
The business rate is 72.5 cents a mile for miles driven January 1 through June 30, 2026, and 76 cents a mile for miles driven July 1 through December 31, 2026. Count the miles in each half. You cannot also deduct actual car expenses for those miles.
Yes, when net earnings are $400 or more. Self-employment tax is 15.3% of 92.35% of profit, and the 12.4% Social Security part stops at the wage base. A W-2 job uses that wage base first. The tips deduction on Schedule 1-A does not reduce self-employment tax, and this page does not compute that deduction.
The four vouchers are April 15, 2026, June 15, 2026, September 15, 2026, and January 15, 2027. The amount is the smaller safe harbor after withholding: 90% of this year's tax, or 100% of last year's tax, 110% when prior AGI is over the threshold. If last year's tax was zero on a full-year return, the vouchers are zero.