LLC Quarterly Estimated Taxes: 2026 Guide
Unlike employees who have taxes withheld from each paycheck, LLC owners must make quarterly estimated tax payments directly to the IRS and their state tax authority. These payments cover both income tax and self-employment tax. Failing to make timely payments results in penalties and interest charges.
Who Must Pay: You must make quarterly estimated tax payments if you expect to owe $1,000 or more in federal taxes for the year after subtracting withholding and credits. Since LLC owners have no employer withholding, virtually all profitable LLCs need to make quarterly payments.
2026 Quarterly Tax Due Dates
| Quarter | Income Period | Due Date | Form |
|---|---|---|---|
| Q1 | January 1 - March 31 | April 15, 2026 | 1040-ES |
| Q2 | April 1 - May 31 | June 15, 2026 | 1040-ES |
| Q3 | June 1 - August 31 | September 15, 2026 | 1040-ES |
| Q4 | September 1 - December 31 | January 15, 2027 | 1040-ES |
Note that the quarters are not equal in length. Q2 covers only 2 months while Q4 covers 4 months. If a due date falls on a weekend or federal holiday, the deadline shifts to the next business day.
How to Calculate Quarterly Payments
There are two primary approaches to calculating your quarterly estimated tax payments:
Method 1: Current Year Estimate
- Estimate your total LLC net income for the year
- Calculate self-employment tax: Net income x 92.35% x 15.3%
- Calculate the 50% SE tax deduction
- Calculate federal income tax on adjusted gross income
- Add state income tax
- Subtract any tax credits
- Divide total by 4 for equal quarterly payments
Method 2: Safe Harbor (Prior Year)
- Look at your total tax liability from the prior year (Form 1040, line 24)
- If your AGI was $150,000 or less: Pay 100% of prior year tax, divided by 4
- If your AGI was over $150,000: Pay 110% of prior year tax, divided by 4
- This method guarantees no underpayment penalty regardless of how much you owe
Example: Your 2025 total tax was $24,000 and your AGI was $95,000. Using safe harbor, pay 100% ÷ 4 = $6,000 per quarter. Even if your 2026 income doubles, you will not owe an underpayment penalty as long as you make these four payments on time.
Annualized Income Installment Method
If your income is seasonal or irregular, you can use the annualized income installment method (Form 2210, Schedule AI) to calculate payments based on actual income received in each period rather than dividing the annual estimate equally:
- Calculates required payment based on income actually received through each quarter
- Allows lower payments in low-income quarters and higher payments in high-income quarters
- More complex to calculate but can reduce or eliminate penalties for seasonal businesses
How to Make Payments
- IRS Direct Pay: Free electronic payment at irs.gov/payments -- pay from your bank account
- EFTPS: Electronic Federal Tax Payment System (requires enrollment) at eftps.gov
- IRS2Go app: Mobile app for making payments
- Credit/debit card: Through authorized processors (processing fees apply: 1.85-1.98% for credit cards)
- Check or money order: Mail with Form 1040-ES payment voucher to IRS
State Quarterly Tax Payments
Most states with income tax also require quarterly estimated payments. Due dates often mirror federal dates but some states differ:
- California: Requires estimated payments if you expect to owe $500+ in state tax. Due dates: April 15 (30%), June 15 (40%), September 15 (0%), January 15 (30%)
- New York: Same due dates as federal (April 15, June 15, September 15, January 15)
- Texas, Florida, Wyoming: No state income tax, no estimated payments required
Underpayment Penalties
The IRS imposes penalties when you underpay estimated taxes. The penalty is calculated as interest on the underpayment amount for the period it was underpaid:
- Penalty rate: Federal short-term rate + 3 percentage points (approximately 7-8% for 2026)
- Calculated per quarter: Each quarter's underpayment is penalized separately from its due date until paid
- No penalty if: Total tax owed is less than $1,000 after withholding and credits
- No penalty if: You paid at least 90% of current year tax or 100%/110% of prior year tax
Safe Harbor Rules Summary
| Situation | Safe Harbor Requirement |
|---|---|
| Prior year AGI ≤ $150,000 | Pay 100% of prior year total tax |
| Prior year AGI > $150,000 | Pay 110% of prior year total tax |
| Current year method | Pay 90% of current year total tax |
| Total tax owed < $1,000 | No payments required |
Tips to Manage Quarterly Payments
- Set aside 25-30% of every payment received in a separate savings account for taxes
- Set calendar reminders two weeks before each due date
- Use accounting software (QuickBooks, FreshBooks) to track income and estimate taxes in real-time
- Adjust payments throughout the year if income increases or decreases significantly
- Consider W-2 withholding: If you or your spouse have W-2 income, increase withholding to cover some LLC taxes
- Use the safe harbor method in your first year to avoid guessing
First-Year LLC Quarterly Taxes
If this is your LLC's first year, you have no prior year tax to use for safe harbor. Options:
- Estimate conservatively: Project your annual income and calculate estimated tax
- Use prior year personal tax: If you had W-2 or other income last year, that total tax can serve as your safe harbor base
- Adjust as you go: Start with smaller payments and increase if income is higher than expected
- No penalty for first year: If your prior year tax liability was zero, no estimated payments are required (though you will owe a lump sum at filing)