LLC Tax Checklist for First-Year Business Owners

The first year of running an LLC is when owners are most vulnerable to missing hidden deadlines, franchise taxes, and compliance reports. Use this 2026 checklist to ensure you stay in good standing.

Updated May 2026 • 12 min read

Quick Answer

To survive your first year without penalties, you must: 1) File your FinCEN BOI report within 90 days, 2) Set aside 25-30% of profit for quarterly estimated taxes, 3) Track your startup expenses for the $5,000 IRS deduction, and 4) Note your state's Annual Report deadline, which often occurs before your first tax season.

Key Points for 2026

FinCEN BOI Report: Required within 90 days of forming your LLC. Fines for missing it are severe ($500+/day).
Quarterly Taxes: The IRS requires you to pay taxes four times a year, not just in April.
Commingling: Keep personal and business expenses strictly separated from Day 1 to protect your liability shield.
State Minimum Taxes: States like California and Delaware require hundreds of dollars in franchise taxes regardless of your first-year profits.

The First-Year Tax & Compliance Checklist

Phase 1: Immediately After Formation (Days 1–30)

Get your EIN: Apply for free at IRS.gov.
Open a Business Bank Account: Fund it with an initial capital contribution.
Draft an Operating Agreement: Store it safely; banks and courts may ask for it.
Apply for Local Licenses: Check your city/county for general business license requirements.

Phase 2: Short-Term Compliance (Days 30–90)

File the BOI Report: Submit your Beneficial Ownership Information to FinCEN (fincen.gov/boi) within 90 days of formation.
Set up Bookkeeping: Choose software (like QuickBooks or Xero) and link your business bank account.
Register for Sales Tax: If you sell physical goods, register with your state's Department of Revenue.

Phase 3: Ongoing Tax Management (Quarterly)

Save for Taxes: Move 25-30% of your net income into a separate savings account every month.
Pay Quarterly Estimated Taxes (Form 1040-ES): Send payments to the IRS by April 15, June 15, September 15, and January 15.
State Estimated Taxes: Check if your state also requires quarterly income tax payments.

Phase 4: Year-End & Annual Renewals (Months 10–12)

Deduct Startup Costs: Tally your pre-launch expenses to claim the $5,000 startup deduction.
Check Annual Report Deadlines: Every state is different. Some require a report by the anniversary of your formation; others require it by a fixed date (e.g., April 15 or June 1).
Renew Registered Agent: Pay your annual fee to keep your registered agent active.

Common Mistake: Ignoring State Franchise Taxes

Many new owners only think about the IRS. However, states like California ($800) and Delaware ($300) demand a minimum annual franchise tax even if your LLC is brand new and has no revenue. Missing these state payments will result in the suspension of your LLC.

Example Scenario

The Situation: Jessica starts an online coaching LLC in January. She makes $40,000 in her first year. She waits until April 15 of the following year to think about taxes.

The Mistake: Jessica missed four quarterly estimated tax payments and she failed to file her BOI report.

The Reality: Jessica will face IRS underpayment penalties for missing her quarterly deadlines. Worse, she is technically liable for massive federal fines for failing to file her BOI report within 90 days of formation. She must file it immediately and hope for leniency.

What to Do Next

File your BOI Report immediately if you are within your first 90 days.
Sync your bank feed to your bookkeeping software so you don't fall behind.
Review your state's Annual Report deadline and mark it on your calendar today.

First-Year LLC FAQs

Do I have to file taxes if my LLC made no money in the first year?

Yes. Even if you operated at a loss or made zero revenue, you generally still have to file a tax return. Furthermore, many states (like California's $800 franchise tax) require you to pay annual fees regardless of your income.

Can I deduct my LLC formation costs?

Yes, the IRS allows you to deduct up to $5,000 in business startup costs and $5,000 in organizational costs in your first year of business, provided your total startup costs don't exceed $50,000.

When are my first-year LLC taxes due?

For single-member LLCs (taxed as sole proprietorships), your business taxes are filed with your personal return on April 15. However, you must pay quarterly estimated taxes throughout the year (April 15, June 15, Sept 15, Jan 15).

What is a BOI Report?

Under the Corporate Transparency Act, most new LLCs must file a Beneficial Ownership Information (BOI) report with FinCEN within 90 days of formation, disclosing the true owners of the company.