When is the next quarterly tax payment due?

The third 2026 installment is due September 15, 2026, covering income earned from June 1 through August 31. The fourth and final payment for the 2026 tax year is due January 15, 2027. State estimated tax deadlines can differ from the federal ones, so check your own state separately.

How much should an owner-operator set aside for taxes?

Around 30% of net profit is a sound working target for most owner-operators, covering roughly 25% to 30% in combined self-employment and federal income tax, with room for state tax. Set it aside from every settlement rather than trying to find it in one lump when the deadline arrives.

What happens if I miss a quarterly payment?

You are charged interest on the shortfall from the due date until you pay, not a flat penalty. The rate resets quarterly and sat at 7% for both the third and fourth quarters of 2026, compounded daily. Pay as soon as you can, and pay whatever you can, because interest only runs on the amount you were short.

Can I skip the January payment?

Yes, in one specific case. If you file your 2026 return by February 1, 2027 and pay the entire balance due with it, the January 15, 2027 installment is not required. That suits drivers who close their books quickly. If you file later, the January payment still applies.

Do I pay quarterly taxes if I am leased to a carrier?

If you receive settlements on a 1099 rather than a W-2, yes. Leasing to a carrier does not make you an employee, nothing is withheld from your settlements, and the estimated payment rules apply exactly as they would under your own authority.

Does electing S-corp status change how I pay?

It changes the mechanics. Your reasonable salary runs through payroll with tax withheld, which covers part of the liability automatically. Distributions above that salary carry no withholding, so you may still owe estimated payments on the remainder. Many S-corp owner-operators handle it by increasing withholding on the payroll side instead.

How Do Owner-Operators Pay Quarterly Estimated Taxes?

Reviewed by Anil Rajput, CPA · Last reviewed August 2026

Quick answer: Owner-operators pay federal tax in four installments instead of one annual bill. For 2026 the dates are April 15, June 15, September 15, and January 15, 2027. Each payment covers income tax plus 15.3% self-employment tax. Missing a date is not a flat fine, it starts interest running at 7% compounded daily.

This guide is general information for owner-operators and small trucking businesses, not personalized tax advice. Rates and thresholds change and depend on your situation. Verify current figures with the primary sources linked below and consult a qualified tax professional before acting.

Why do owner-operators have to pay quarterly?

A company driver never thinks about this because their employer withholds tax from every paycheck. When you run under your own authority or take settlements as a 1099 contractor, nobody withholds anything. The federal system is still pay as you earn, so the IRS expects you to send the money in yourself across the year.

In general you owe estimated payments if you expect to owe at least $1,000 in tax for the year after subtracting any withholding and credits. Almost every profitable owner-operator clears that bar in their first year.

When are the 2026 payments due?

First payment; Income period: January 1 to March 31, 2026; Due date: April 15, 2026

Second payment; Income period: April 1 to May 31, 2026; Due date: June 15, 2026

Third payment; Income period: June 1 to August 31, 2026; Due date: September 15, 2026

Fourth payment; Income period: September 1 to December 31, 2026; Due date: January 15, 2027

Notice the periods are not even thirds. The second payment covers only two months while the third covers three. This is a historical quirk the IRS never cleaned up, and it catches drivers who assume the dates land ninety days apart. You cannot work out the schedule by counting months on a calendar.

How much should you send each quarter?

Start from net profit, not gross revenue. A $200,000 gross year with $140,000 of running costs is a $60,000 profit, and the tax is calculated on the $60,000. Two federal taxes stack on that number.

Self-employment tax. 15.3% on 92.35% of net profit. The Social Security portion of 12.4% applies to the first $184,500 of earnings in 2026, capping at $22,878. The 2.9% Medicare portion has no cap, and an extra 0.9% applies above $200,000 for single filers or $250,000 filing jointly.
Federal income tax. Bracketed from 10% to 37% on taxable income after deductions.

As a working rule, most owner-operators land somewhere around 25% to 30% of net profit in combined federal tax, before any state tax. Setting aside 30% of profit from every settlement is the habit that keeps drivers out of trouble. For the full arithmetic on a real gross year, see how much owner-operators pay in taxes.

What is the safe harbor, and why does it matter most for truckers?

This is the single most useful rule in the whole subject, and most drivers have never heard of it. You do not have to predict your income accurately. You only have to land inside one of three thresholds, and the penalty goes away even if you still owe money in April.

90% of this year; What you pay: 90% of your actual 2026 tax; Best when: income is steady and predictable

100% of last year; What you pay: 100% of your total 2025 tax; Best when: prior-year AGI was $150,000 or less

110% of last year; What you pay: 110% of your total 2025 tax; Best when: prior-year AGI was above $150,000

The prior-year route is the one that fits trucking. Freight rates swing, a blown engine can erase a quarter, and a strong autumn can double what you expected. You cannot forecast that. You can look up last year's total tax, divide by four, and pay that. Do it on time every quarter and you are protected no matter what this year turns into.

What does a missed payment actually cost?

It is not a fine. The IRS charges interest on the shortfall from the day the installment was due until the day you pay it. That rate is reset quarterly. Through 2026 it has run 7% in the first quarter, 6% in the second, and 7% in both the third and fourth, compounded daily.

Two things follow from that. Being a few days late is cheap, so a missed deadline is not a catastrophe. And paying something is always better than paying nothing, because interest only accrues on the amount you were short.

How do you actually make the payment?

IRS Direct Pay. Free, straight from a bank account, no enrollment. Easiest option for a single owner-operator.
EFTPS. Free, keeps a payment history, and lets you schedule installments ahead. Enrollment takes a few days, so sign up before you need it.
Your IRS Online Account. Pay and see what the IRS has already credited to you, which settles arguments at filing time.
Form 1040-ES vouchers. Paper by mail. It works, but you lose the timestamp that proves you paid on time.

Whichever you use, label the payment for the right year and the right installment. Money applied to the wrong period is the most common reason a driver who genuinely paid still gets a notice.

What if your income swings from quarter to quarter?

Four equal payments assume income arrives evenly, which is rarely true in freight. If you hauled almost nothing in spring and had a huge autumn, equal installments make you overpay early. The annualized income method on Form 2210, Schedule AI lets you match payments to when you actually earned. It is more paperwork and it is worth it when your year is genuinely lopsided. If your income is merely bumpy, the prior-year safe harbor is simpler and gets you to the same protection.

Frequently asked questions

Stop guessing at your quarterly number

Every one of these calculations starts from an accurate net profit figure, which means it starts from clean books. Ace Global gives owner-operators and small fleets a dedicated bookkeeper backed by CPAs who keeps your profit current, calculates each installment, and tells you what to send before the date rather than after it. Flat pricing, no long-term contracts, answers on WhatsApp or iMessage. Get started with Ace Global today.

Sources

This article is for informational purposes only and does not constitute tax advice. Deadlines, rates, and thresholds change and depend on your circumstances. Consult a qualified tax professional before acting.