Top 10 Business Filing Deadlines to Track

1. Your State Annual Report

The single most common recurring filing is your state's annual or biennial report, confirming your registered agent and address are current. Fees range from $0 in states such as Montana and Mississippi to $500 in Massachusetts, and deadlines follow either a fixed calendar date or your business's own formation anniversary month, depending on the state.

2. A Separate State Franchise or Entity Tax

Some states bill a tax independent of the annual report. California charges an $800 annual LLC franchise tax to the Franchise Tax Board, and Delaware charges a flat $400 annual LLC tax due by June 1, both separate from any report fee.

3. Federal Payroll Tax Deposits

If you have employees, the IRS assigns your business a monthly or semi-weekly deposit schedule for withheld income tax, Social Security and Medicare tax, based on your reported liability. Missing a scheduled deposit, even briefly, triggers a penalty calculated as a percentage of the unpaid amount.

4. Quarterly Estimated Income Tax Payments

A business owner who doesn't have taxes withheld from a paycheck, including most LLC members and sole proprietors, generally has to make estimated federal income tax payments four times a year, with due dates the IRS sets around April 15, June 15, September 15, and January 15.

5. Your Sales Tax Filing Schedule

If you hold a sales tax permit, the state assigns a filing frequency, commonly monthly, quarterly, or annually, based on your sales volume, and expects a return even for periods with no sales.

6. Business License and Permit Renewals

Local business licenses, state occupational licenses, and industry-specific permits each carry their own renewal date, set by the issuing agency rather than your state's business filing office, and don't appear on your Secretary of State's record at all.

7. Your Registered Agent's Own Renewal

If you use a registered agent service rather than serving as your own agent, confirm when that service's annual fee renews, since a lapse here can cause your entity to fall out of good standing even if every other filing is current.

8. Foreign Qualification Reports in Other States

If you're registered as a foreign LLC or corporation in additional states, each one has its own annual or biennial report deadline, entirely separate from your home state's, and a missed one can revoke your authority to operate there specifically.

9. Form 990 for Nonprofits

A tax-exempt organization's annual return, Form 990, 990-EZ, 990-N, or 990-PF depending on size, is generally due by the 15th day of the fifth month after the organization's fiscal year ends. Missing this filing for three consecutive years triggers automatic revocation of tax-exempt status.

10. Your Federal Business Income Tax Return

The underlying federal return, whether that's a partnership return, an S corporation return, a C corporation return, or a Schedule C with your personal return, has its own due date and extension deadline that doesn't move just because other state filings are current.

Building One Calendar Instead of Ten

Because these ten deadlines come from different agencies and different levels of government, the practical fix isn't remembering each agency's own reminder system; it's consolidating every deadline relevant to your specific business onto one calendar you control, with enough lead time to gather what each filing requires before it's due.

Not Every Business Owes All Ten

Some of these deadlines only apply if you have employees, operate in more than one state, or are organized as a nonprofit. Build your own specific list rather than assuming every item here applies to your business.

New Deadlines Appear as You Grow

Crossing an economic nexus threshold in a new state, hiring your first employee, or registering as a foreign entity each adds a new recurring deadline you didn't have before. Revisit your list periodically, not just once at startup.

A Missed Deadline Rarely Causes Immediate Dissolution

Most of these deadlines come with a late fee and a notice period before the most serious consequence, like administrative dissolution or loss of exempt status, actually takes effect. That grace period is worth using to fix a miss quickly rather than assuming it's already too late.

This Is General Information, Not a Complete or State-Specific Calendar

Exact deadlines, fees, and consequences vary by state, entity type, and your specific business activity, and they change periodically. Confirm your specific deadlines with each relevant agency, and talk to a tax professional about your federal and state tax filing schedule.