July marks the midpoint of the calendar year—and, for most business owners, it is the moment when the second half either unfolds smoothly or begins to accumulate problems. The good news is that there is still time to get ahead of what is coming. Whether you operate an LLC, an S corporation, or a sole proprietorship, the next six months carry several compliance and tax deadlines worth planning for now, not in September.
This guide walks through the key milestones for the remainder of 2026 and what you can do today to prepare. For expert support, Victoria’s Agency provides tax planning and IRS services, corporate compliance, and IRS problem resolution nationwide.
Q3 Estimated Tax Payments—Due September 15, 2026
If you are self-employed, a sole proprietor, an S corporation shareholder, or a partner in a partnership, you are most likely required to pay estimated taxes quarterly. The third-quarter deadline for the 2026 tax year is September 15.
Missing estimated payments does not simply mean catching up in April. It means IRS underpayment penalties that compound over the year. Many business owners discover they owe penalties only when they file their annual return—by which point it is too late to avoid them.
What to do now:
- Review your Q1 and Q2 income and calculate your projected annual earnings
- Apply the IRS safe harbor rule: pay at least 100 percent of last year’s tax liability (or 110 percent if your adjusted gross income exceeded $150,000) to avoid penalties
- If your income has shifted significantly, recalculate rather than relying on prior-year figures
- Need help with tax payment planning or setting up an installment arrangement? Victoria’s Agency can structure this for you.
Missing estimated payments does not simply mean catching up in April. It means IRS underpayment penalties that compound over the year. Many business owners discover they owe penalties only when they file their annual return—by which point it is too late to avoid them.
What to do now:
- Review your Q1 and Q2 income and calculate your projected annual earnings
- Apply the IRS safe harbor rule: pay at least 100 percent of last year’s tax liability (or 110 percent if your adjusted gross income exceeded $150,000) to avoid penalties
- If your income has shifted significantly, recalculate rather than relying on prior-year figures
- Need help with tax payment planning or setting up an installment arrangement? Victoria’s Agency can structure this for you.
Annual Report and Public Information Filings
Depending on your state and entity type, your annual report or public information report may fall due in Q3 or Q4. These are state-level compliance filings—separate from your federal tax return—that confirm your business remains active and keep your registered agent, address, and officer information current.
Missing them can result in administrative dissolution, which means your LLC or corporation loses its good standing. That is a serious problem if you are signing contracts, applying for credit, or pursuing investors.
States with Q3 or Q4 annual report deadlines include:
- Illinois—annual report due before the end of the anniversary month
- California—Statement of Information due every two years (verify your cycle)
- Delaware—franchise tax and annual report due March 1, 2027 (plan ahead now)
- Texas—Public Information Report due May 15, 2027 (mark it now)
Victoria’s Agency handles annual and public information report filings and can verify your current good standing status with a Certificate of Good Standing.
BOIR—What Changed and What It Means for Your Business
Important update: As of March 26, 2025, FinCEN issued an interim final rule exempting all U.S.-formed domestic entities from BOIR filing requirements under the Corporate Transparency Act. If your LLC or corporation was created under U.S. law, you are no longer required to file. The requirement now applies only to foreign entities—companies formed under foreign law that have registered to do business in a U.S. state or tribal jurisdiction.
If your business is a foreign-registered entity operating in the United States, the BOIR obligation applies to you. Foreign companies registered to do business in the U.S. before March 26, 2025, were required to file by April 25, 2025. Companies that registered on or after March 26, 2025, have 30 calendar days from the effective date of their U.S. registration to file.
If you are a foreign business owner or operate through a foreign entity and are uncertain about your obligations, Victoria’s Agency can advise you on your current exposure.
Tax Planning for Q4—The Window Is Now
Year-end tax planning is most effective when it begins in Q3, not December. Waiting until November or December to review your tax position means that most of the meaningful planning options have already closed.
Key decisions to address before Q4:
- S corporation election timing: if you want your LLC taxed as an S corp beginning January 1, 2027, you may file Form 2553 at any point during 2026. The deadline to have the election take effect for the current tax year passed on March 16, 2026—but planning now for 2027 is the right move. See tax election assistance.
- Retirement contributions: Solo 401(k) and SEP-IRA contributions can reduce your taxable income substantially, but the accounts must be established before year-end
- Equipment and asset purchases: Section 179 and bonus depreciation allow you to deduct the cost of qualifying property placed in service before December 31, reducing your 2026 tax bill
- Business structure review: is your current entity type still the right fit for where the business is headed? A full corporate compliance and risk review can surface issues before they become expensive
IRS Issues Do Not Resolve Themselves
If you received an IRS notice in the first half of the year and have not yet responded, the second half is when those notices escalate. CP2000 notices (proposed changes to your return), LT11 final notices of intent to levy, and collection actions all follow a fixed timeline—and that timeline does not pause because you are busy.
As a federally authorized Enrolled Agent, Victoria represents clients directly before the IRS. Whether the matter involves penalty abatement, an Offer in Compromise, or a structured payment plan, early action consistently leads to better outcomes.
“Preparation works better than last-minute filings.”
What to Do This Month
- Review your estimated tax position and pay Q3 estimates before September 15, 2026
- Confirm your annual report status in every state where your business is registered
- If your entity is foreign-registered in the U.S., verify your BOIR compliance status
- Schedule a tax planning consultation to assess your Q4 position before the window closes
- Address any open IRS notices promptly—contact Victoria’s Agency for authorized EA representation
Victoria Duchovny is a federally authorized Enrolled Agent and Compliance Specialist at Victoria’s Agency, serving businesses and individuals nationwide. Book a consultation →
