The quarterly tax forms an LLC files depend on how the IRS classifies the business. Most LLC owners file Form 1040-ES to make personal estimated tax payments on their share of the profits. LLCs with employees also file Form 941 each quarter to report payroll taxes. An LLC that has elected C-corporation status makes its own quarterly estimated deposits at the entity level. For tax year 2026, individual estimated payments are due April 15, June 15, September 15, and January 15, 2027.1Internal Revenue Service. Form 1040-ES – Estimated Tax for Individuals
Your Tax Classification Decides the Forms
The IRS treats a single-member LLC as a disregarded entity, meaning the owner reports the business on their personal return. A multi-member LLC is treated as a partnership by default.2Internal Revenue Service. Limited Liability Company (LLC) In either case, the LLC itself pays no federal income tax and files no quarterly estimated tax at the entity level. That obligation runs through to the owners.
An LLC can change that default by filing Form 8832 to be taxed as a C-corporation, or by electing S-corporation status. A C-corp pays tax at the entity level and follows corporate estimated tax rules. An S-corp still passes profits through to owners, but owner-employees take a W-2 salary alongside distributions.3Internal Revenue Service. S Corporations So before you pick a form, confirm which of these buckets your LLC sits in.
Form 1040-ES: The Main Form for Most LLC Owners
If your LLC is a disregarded entity, a partnership, or an S-corporation, your share of profits lands on your personal return with no withholding attached. You send your own estimated payments to the IRS on Form 1040-ES.4Internal Revenue Service. About Form 1040-ES, Estimated Tax for Individuals This covers both income tax and self-employment tax, which runs 15.3% of net earnings — 12.4% for Social Security and 2.9% for Medicare.5Internal Revenue Service. Self-Employment Tax (Social Security and Medicare Taxes)
The threshold that triggers the requirement is low. You must make estimated payments if you expect to owe $1,000 or more in federal tax for the year after withholding and refundable credits.6Office of the Law Revision Counsel. 26 USC 6654 – Failure by Individual to Pay Estimated Income Tax Most LLC owners earning meaningful income clear that line easily.
A multi-member LLC does file Form 1065 annually as an information return, but the partnership itself doesn’t owe quarterly estimated tax. Each partner handles their own.7Internal Revenue Service. About Form 1065, U.S. Return of Partnership Income
S-corporation owners who draw a W-2 salary already have taxes withheld from that paycheck. Distributions above the salary aren’t withheld, so you may still owe quarterly estimates on that portion using Form 1040-ES.3Internal Revenue Service. S Corporations
Estimated Tax When Your LLC Is Taxed as a Corporation
An LLC that has elected C-corporation status pays income tax itself and must make its own quarterly estimated deposits. The trigger is lower than for individuals: corporate estimated payments are required when the expected tax reaches $500 or more for the year.8Internal Revenue Service. Publication 542 – Corporations
The IRS discontinued the old Form 1120-W worksheet after tax year 2022. Corporations now calculate the liability using the Form 1120 instructions and deposit payments through the Electronic Federal Tax Payment System. For a calendar-year corporation, deposits are due April 15, June 15, September 15, and December 15. Fiscal-year corporations use the 15th day of the 4th, 6th, 9th, and 12th months of their tax year.
Form 941 for LLCs With Employees
Any LLC that pays wages files Form 941, the Employer’s Quarterly Federal Tax Return. It reports federal income tax withheld from employee paychecks, plus both shares of Social Security and Medicare tax.9Internal Revenue Service. About Form 941, Employer’s Quarterly Federal Tax Return Form 941 is due the last day of the month after each quarter closes: April 30, July 31, October 31, and January 31.10Internal Revenue Service. Employment Tax Due Dates
Filing the form is only half the requirement. The taxes it reports must be deposited on a rolling schedule throughout the quarter — monthly or semi-weekly, depending on your total liability during a lookback period. If you deposited everything on time, you get an extra 10 calendar days to file the return.10Internal Revenue Service. Employment Tax Due Dates Many LLC owners trip here: they treat the quarterly filing date as the deposit date and pick up late-deposit penalties.
Federal Unemployment Tax
LLCs with employees also owe FUTA, reported once a year on Form 940 but deposited quarterly when the liability crosses $500. If your quarterly FUTA stays at $500 or below, you carry it forward and deposit once the cumulative amount clears the threshold. Deposits are due the last day of the month after each quarter’s end.11Internal Revenue Service. Form 940, Employers Annual Federal Unemployment (FUTA) Tax Return – Filing and Deposit Requirements
2026 Due Dates for Form 1040-ES
Federal estimated tax deadlines for individual LLC members in tax year 2026:1Internal Revenue Service. Form 1040-ES – Estimated Tax for Individuals
- Q1: April 15, 2026
- Q2: June 15, 2026
- Q3: September 15, 2026
- Q4: January 15, 2027
If a due date falls on a weekend or federal holiday, the deadline shifts to the next business day. You can skip the January 15 payment entirely if you file your 2026 return and pay the balance in full by February 1, 2027.1Internal Revenue Service. Form 1040-ES – Estimated Tax for Individuals
Notice the quarters aren’t evenly spaced. Q2 arrives just two months after Q1, which catches new business owners off guard. Mark all four dates as soon as the year starts.
Safe Harbor Rules That Keep You Penalty-Free
The IRS won’t penalize you for underpaying if you meet any of three conditions: you owe less than $1,000 at filing after withholding and credits, you paid at least 90% of the current year’s tax through withholding and estimates, or you paid at least 100% of last year’s total tax.12Internal Revenue Service. Topic No. 306, Penalty for Underpayment of Estimated Tax
There’s a higher bar for higher earners. If your adjusted gross income exceeded $150,000 in the prior year ($75,000 if married filing separately), the safe harbor jumps from 100% to 110% of the prior year’s tax.13Internal Revenue Service. Underpayment of Estimated Tax by Individuals Penalty Profitable LLCs cross that line quickly. The practical move: pay 110% of last year’s tax across four quarters and settle any balance at filing. Even if income spikes, you’re penalty-proof.
C-corporation LLCs generally avoid the penalty by paying 100% of the prior year’s tax or 100% of the current year’s tax in quarterly installments.8Internal Revenue Service. Publication 542 – Corporations
Penalties for Late or Missed Payments
Two penalties get confused. The estimated tax underpayment penalty applies when you don’t pay enough during the year. It’s calculated as interest on the shortfall using the federal short-term rate plus three percentage points, compounded daily. For early 2026 the rate is 7% in Q1 and 6% in Q2.14Internal Revenue Service. Quarterly Interest Rates
The failure-to-pay penalty is separate. It applies when you file your annual return and don’t pay the balance due, at 0.5% of the unpaid tax per month or partial month, capped at 25%.15Internal Revenue Service. Failure to Pay Penalty Interest runs on top of both.
Payroll deposits reported on Form 941 carry their own tiered failure-to-deposit penalty. Deposits one to five days late face a 2% penalty, and the rate escalates from there, reaching 15% for deposits still outstanding after the IRS issues a demand notice. These stack across every missed deposit, not just an annual total. If you’re going to be meticulous about one quarterly obligation, make it payroll.
How to Send the Payments
The Electronic Federal Tax Payment System (EFTPS) is the main channel for business deposits, covering both estimated income tax and payroll tax. It’s free and lets you schedule payments up to 365 days in advance.16Internal Revenue Service. EFTPS: The Electronic Federal Tax Payment System New enrollments take up to five business days to process, so don’t sign up the week your first payment is due.
Individual LLC members can also use IRS Direct Pay for free transfers straight from a bank account, which works well for Form 1040-ES.17Internal Revenue Service. Direct Pay With Bank Account Credit and debit card payments run through third-party processors that charge fees.
If you mail a check, send the Form 1040-ES voucher to the address in the form instructions for your state. Use certified mail with a return receipt. The IRS treats the postmark date as the payment date, which matters when you’re close to a deadline.