2026 LLC Compliance Calendar

Missing a tax or compliance deadline can result in massive IRS penalties or your LLC being involuntarily dissolved by the state. Here are the crucial dates every LLC owner needs to know.

🗺️ Customize Your Compliance Deadlines

January
Jan 15

Q4 Estimated Taxes Due (Prior Year)

Your final quarterly estimated tax payment for the previous tax year is due to the IRS.

Jan 31

Send 1099-NEC Forms

Deadline to mail 1099-NEC forms to any independent contractor you paid $600 or more during the previous year.

February

No major deadlines this month.

March
Mar 15

S-Corp & Partnership Tax Returns Due

If your LLC is taxed as an S-Corporation or a Multi-Member Partnership, your Form 1120-S or Form 1065 is due today (or you must file for an extension).

April
Apr 15

Tax Day (Single-Member LLCs)

Deadline to file your personal tax return (Form 1040 and Schedule C) if you are a single-member LLC.

Apr 15

Q1 Estimated Taxes Due

Your first quarterly estimated tax payment for the current tax year is due.

May

No major deadlines this month.

June
Jun 15

Q2 Estimated Taxes Due

Your second quarterly estimated tax payment for the current tax year is due.

July

No major deadlines this month.

August

No major deadlines this month.

September
Sep 15

Q3 Estimated Taxes Due

Your third quarterly estimated tax payment for the current tax year is due.

October

No major deadlines this month.

November

No major deadlines this month.

December

No major deadlines this month.

Ongoing: State Deadlines
Varies

State Annual Reports & Franchise Taxes

Every state has a different deadline for filing your LLC Annual Report. In Delaware, it's June 1st. In Florida, it's May 1st. In California, franchise tax is due the 15th day of the 4th month after formation. Select your state in the dropdown at the top to customize your personal calendar.