Owner Operator Quarterly Estimated Taxes: How Much to Set Aside Per Load
Set aside 20% to 25% of each load's net profit. Here is the 2026 math and the January 15 deadline.
Set aside 20% to 25% of each load's net profit for federal tax the day the settlement lands. Base it on net profit after costs, never on gross, and expect the percentage to rise as your profit rises.
Keep that money in a separate account until a payment date. In an $80,000 year, that works out to about $208 for every $1,000 a load nets.
Nobody withholds tax from an owner operator's settlement. You are self employed, so you owe self employment tax of 15.3% (12.4% Social Security plus 2.9% Medicare) plus income tax, and you pay it yourself.
In most cases, you must pay estimated tax if you expect to owe at least $1,000 for 2026 after withholding and credits, according to the 2026 Form 1040 ES. The 2026 due dates are April 15, June 15, September 15, and January 15, 2027.
As of October 13, 2026, the September 15 payment is past due. The penalty is figured on each underpayment for the days it stays unpaid, so catch up as soon as you can.
What counts as net on a load
Net means what is left after fuel, tolls, factoring fees, and the load's share of truck payment, insurance, maintenance, and every other cost. Across a year, that adds up to your Schedule C line 31 profit. Our guide to owner operator salary after expenses shows where the money goes.
Drivers under DOT hours of service limits deduct 80% of meal expenses while away from home overnight, per IRS Pub 463. Run your days through our per diem calculator to see what that lowers.
What it costs at three profit levels
Self employment tax is figured on 92.35% of net profit, and you deduct half of it when figuring income tax. Here are three levels.
| Net profit | Self employment tax | Income tax | Federal total | Percent of net |
|---|---|---|---|---|
| $50,000 | $7,065 | $2,667 | $9,732 | 19.5% |
| $80,000 | $11,304 | $5,344 | $16,647 | 20.8% |
| $120,000 | $16,955 | $11,506 | $28,462 | 23.7% |
Assumptions: single filer, the 2026 standard deduction of $16,100, a 20% qualified business income deduction, no other income, no health insurance or retirement deductions, and no state income tax. If your state taxes income, add your state rate on top.
At $80,000, the quarterly payment is about $4,162. On a load that nets $1,000, set aside $208, or $210 rounded.
To avoid the penalty, pay the smaller of 90% of your 2026 tax or 100% of your 2025 tax, if your 2025 return covered 12 months. Use 110% instead of 100% if your 2025 AGI was more than $150,000 ($75,000 if married filing separately).
A flat percentage is blunt. The rate climbs with profit, and your net swings from month to month.
The table covers the first part. The rate runs from 19.5% to 23.7%, which is why I say 20% to 25%. For the second part, true up each quarter: multiply your net profit so far by your rate, compare it to the account balance, and adjust. If you over save, it comes back as a refund.
January 15 and how to pay
The last 2026 payment is due January 15, 2027, and covers income from September 1 to December 31, per Pub 505. You can skip it if you file your 2026 return by February 1, 2027 and pay the whole balance with it.
Pay with IRS Direct Pay, by phone, or through the IRS app, or mail a voucher. You can make more than four payments, so send money after a big month.
That account holds money you already owe. Treat it like a bill.
This is general information, not tax advice. A tax pro who works with truckers should set your actual amounts.
Sources
- 2026 Form 1040 ES, Estimated Tax for Individuals. Internal Revenue Service. Accessed October 13, 2026.
- Publication 505, Tax Withholding and Estimated Tax. Internal Revenue Service. Accessed October 13, 2026.
- Publication 463, Travel, Gift, and Car Expenses. Internal Revenue Service. Accessed October 13, 2026.
- Self employment tax, Social Security and Medicare taxes. Internal Revenue Service. Accessed October 13, 2026.