Quarterly taxes for
owner-operators.

Most owner-operators understand that they pay more taxes than a W-2 employee. What fewer understand is why — and because of that, they overpay in some areas and miss deductions that would save them thousands.

This guide walks through the self-employment tax structure, the deductions available specifically to owner-operators, and a simple formula for setting aside exactly the right amount each month.

The self-employment tax — what most people don't realize.

When you work as an employee, your employer pays half of your Social Security and Medicare taxes (called FICA). When you're self-employed, you pay both halves yourself. This is the self-employment (SE) tax, and it's 15.3% of your net self-employment income.

Here's the part most people miss: you can deduct half of your SE tax from your taxable income. So while you pay 15.3%, the actual tax cost is lower because you get a deduction. This is built into the calculation below.

The calculation: step by step.

This is a simplified illustration. State income tax, additional deductions, and different filing statuses will change the numbers. The point is the structure: gross minus expenses minus deductions equals taxable income, and that's what gets taxed.

The QBI deduction — one of the biggest tax advantages for owner-operators.

The Qualified Business Income (QBI) deduction allows eligible self-employed individuals to deduct up to 20% of qualified business income. For most owner-operators, this means a significant reduction in taxable income.

Most independent truckers and sole proprietors qualify for the full 20% deduction, subject to income limits. This deduction alone can save an owner-operator thousands of dollars per year — but you must be self-employed (not an employee) and file Schedule C.

Expenses owner-operators can deduct.

• Fuel — your single largest deduction. Keep every fuel receipt, or use a fuel card that provides annual statements.
• Truck payment / depreciation — interest on a commercial truck loan is deductible. You may also depreciate the truck itself, sometimes accelerated through Section 179.
• Insurance — cargo insurance, liability, bobtail, and physical damage coverage.
• Repairs and maintenance — tires, oil changes, repairs, inspections.
• Permits and licenses — IFTA, IRP, base plates, UCR.
• Dispatch fees — if you use a dispatcher or load board.
• Cell phone — business portion of your phone bill.
• Per diem (meals) — the IRS standard meal allowance for days you're away from home. For 2026, this is a set daily rate — consult IRS Publication 463 for the current amount.
• Scale tickets, tolls, lumper fees — document everything.

2026 quarterly payment due dates.

Pay using IRS Direct Pay (free at irs.gov) or the IRS2Go mobile app. File Form 1040-ES with each payment. If you miss a quarterly payment, you'll owe a small underpayment penalty — which is not catastrophic, but avoidable.

The simple rule: what to set aside.

For most owner-operators, setting aside 25–30% of every settlement check into a dedicated tax savings account is a reasonable starting point. This account should not be touched for anything except quarterly tax payments and year-end taxes.

If your expenses are high (which they usually are in trucking), the effective rate may be lower. If your income is strong and expenses are low, it may be higher. The only way to know your exact number is to run your actual figures — the Owner-Operator's Financial Playbook includes a worksheet for this calculation.