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    Owner-operator quarterly estimated tax calculator for 2026

    Enter your net profit so far this year and the months it covers, your days away overnight and what you've already paid. The calculator projects the year, estimates self-employment and income tax, and splits it into four estimated payments.

    Filing status
    $

    Business income minus business expenses

    days

    Projected for the full year

    $

    A spouse's wages, for example

    $

    Per diem uses the transportation rate of $80 a day in the continental U.S., deductible at 80%. Not modeled: the qualified business income deduction, credits, state tax and the Additional Medicare tax.

    Estimated federal tax for 2026

    $9,753

    Projected profit
    $60,000
    Per diem deduction
    -$12,800
    Self-employment tax
    $6,669
    Income tax
    $3,084
    Still to pay
    $5,753

    Habit: set aside about $163 of every $1,000 of profit (16.3% on these numbers).

    An estimate, not tax advice. Your tax preparer has the final word.

    Four 1040-ES envelopes, equal installments
    EXAMPLE year, use yours

    1. Q1 · Apr 15, 2026

      $2,438

      Covered by payments

    2. Q2 · Jun 15, 2026

      $2,438

      $1,562 covered

    3. Q3 · Sep 15, 2026

      $2,438

      Not paid yet

    4. Q4 · Jan 15, 2027

      $2,438

      Not paid yet

    What the estimate is made of

    Total $9,753

    About $2,438.25 per quarter on these numbers. Our dispatchers send you a weekly earnings report, which makes setting money aside easier, and you approve every load.

    Get loads that build my profit

    Owner-operators don't get taxes withheld, so the bill builds up quietly all year. This owner-operator quarterly estimated tax calculator projects your 2026 profit from what you've earned so far, takes off the per diem for nights on the road, and estimates both taxes you owe: self-employment tax and income tax. The four envelopes show each estimated payment and how much of it you've already covered. It's a planning estimate, not tax advice.

    How it is calculated

    1. Projected profit = net profit so far ÷ months it covers × 12.
    2. Per diem = days away overnight × the transportation rate of $80 a day in the continental U.S. × 80%, the deductible share for drivers under hours-of-service limits.
    3. Net earnings = projected profit - per diem.
    4. Self-employment tax = 15.3% on 92.35% of net earnings, with the Social Security part stopping at the $184,500 wage base for 2026.
    5. Taxable income = net earnings + other income - half the self-employment tax - the 2026 standard deduction.
    6. Income tax from the 2026 rate tables.
    7. Quarterly payment = total ÷ 4, due April 15, June 15, September 15 and January 15.

    Sources: IRS Topic no. 554, checked October 2026; Social Security Administration, Contribution and Benefit Base, checked October 2026; Rev. Proc. 2025-32, section 4.01, IRB 2025-45, checked October 2026; IRS Publication 463 (2025); Notice 2025-54 (from Oct 1, 2025); Notice 2026-60 keeps $80 from Oct 1, 2026, checked October 2026; IRS Publication 463 (2025), checked October 2026; IRS, Estimated tax FAQs; Publication 505, checked October 2026 Estimate only; not tax advice.

    A worked example

    One owner-operator, single, 2026Example

    1. PROFIT$45,000 in 9 months, projected to $60,000
    2. PER DIEM200 nights × $80 × 80% = $12,800, net $47,200
    3. SE TAX$47,200 × 92.35% × 15.3% = $6,669.15
    4. INCOME TAXTaxable $27,765.43 after half SE tax and $16,100: $3,083.85
    5. PAYMENTS$9,753 a year, $2,438.25 a quarter; $4,000 already paid

    These are EXAMPLE numbers. Your situation, deductions and credits will change the result.

    How to read the result

    The "set aside per $1,000" line is the habit to build: move that share of each week's profit into a separate account the day you're paid, and the quarterly payment is waiting when it's due. If an envelope shows not paid and its date has passed, paying soon limits any penalty. If the estimate looks high, the qualified business income deduction, which this calculator leaves out, may lower it; ask your preparer.

    Per diem: who can use it and how

    The per diem in this calculator is for meals and incidental expenses while you're away from your tax home overnight. Self-employed drivers can generally use the special transportation rate instead of keeping every meal receipt, but you still need records that prove the days away: dates, places and the business purpose, which your ELD or logs usually show. Partial days follow their own rules. If you use the special rate, you use it for all your trips that year. Your tax preparer can confirm how it applies to you.

    Paying estimated tax

    You can pay through your IRS online account, IRS Direct Pay from a bank account, or by mail with a Form 1040-ES voucher. Paying each quarter, even a little late, costs less than waiting until April, because the underpayment penalty grows with time. If your income changes during the year, rerun the calculator and adjust the next payments. A slow quarter can mean a smaller payment; a strong one, a bigger one.

    Records that make tax time easy

    • Income: every invoice and payment, matched by load number. Our freight invoice guide covers what each invoice should carry.
    • Expenses: receipts by category, monthly.
    • Nights away: your ELD or logbook shows the days for per diem.
    • The truck: purchase documents for depreciation; the truck depreciation calculator shows the schedule.
    • Claims and disputes: keep the dates; the freight claim filing deadlines chart (coming soon) lists them.

    Fees and taxes

    Business fees you pay, such as dispatch fees and factoring fees, are generally deductible business expenses. To see what a dispatch fee costs on your week before it reaches your books, use the dispatcher fee calculator.

    Steady loads make quarterly payments predictable. Our owner-operator dispatch desk sends a weekly earnings report, and you approve every load. Send an application.

    Questions about this calculator

    How do owner operator taxes work?
    As a self-employed owner-operator, no employer withholds tax from your pay. You owe income tax on your net profit plus self-employment tax, which covers Social Security and Medicare. Most owner-operators pay during the year with four estimated payments on Form 1040-ES, then settle up on the annual return. Missing payments can bring a penalty even if you get a refund.
    What is on a trucking owner operator tax deductions list?
    Ordinary and necessary business expenses: fuel, maintenance and repairs, tires, insurance, truck and trailer payments' interest and depreciation, permits, plates and IFTA, ELD and load board subscriptions, dispatch fees, tolls, scales, parking, phone and the business share of meals on the road. Keep receipts and logs; a tax preparer decides what applies to you.
    What owner operator tax write offs do drivers miss?
    Per diem for meals away from home is the one most often missed or misused. Others include small tools and supplies, cleaning and washouts, association dues, the business share of a phone, and fees for factoring or dispatch. Depreciation on the truck can be large, so keep the purchase records. Write-offs need records, not estimates.
    Can I print an owner operator tax deductions worksheet?
    Use the print button on the calculator to print your estimate with the inputs, and print this page for the deductions list. For the worksheet itself, keep a simple monthly log of income and each expense category with receipts attached. Your tax preparer may also have a worksheet they prefer.
    How accurate is this owner operator tax calculator?
    It's a planning estimate using 2026 federal brackets, the standard deduction, self-employment tax and the transportation per diem. It leaves out the qualified business income deduction, credits, state tax and other income situations, so your real tax can be lower or higher. Use it to set money aside, and have a tax professional prepare the return.