Legal Guidance Around Key Deadlines Helps Owners Secure Deductions and Avoid Penalties

RENO, NV / ACCESS Newswire / February 18, 2026 / During the 2026 tax season, as returns and year-end documents are being prepared, LegalMatch reminds businesses of all sizes to get started now, stay organized, and seek advice from qualified professionals to avoid costly mistakes and missed opportunities.

Businesses that do not have the assistance of a tax lawyer or a qualified tax professional may run into the following issues:

• IRS Notices and Penalties: The IRS may send notices and impose penalties and interest for misclassifying workers, failure to file certain information returns, or underpayment of estimated taxes, etc.

• Missed Deductions: Deductions missed on equipment, start-up costs, or various tax credits can become important tax liabilities. This results in less available money for a company to invest in growth.

Major 2026 business filing dates for calendar‑year businesses include, but are not limited to, the following:

March 16, 2026:

• Deadline for S corporations (Form 1120‑S)

• Deadline for partnerships (Form 1065)

April 15, 2026:

• Deadline for C corporations (Form 1120)

• Deadline for individual returns, including sole proprietors filing Schedule C

• First quarter 2026 estimated tax payments are also due on this date for many businesses and self‑employed taxpayers.

September 15, 2026:

• Third-quarter 2026 estimated tax payments are due for many businesses and self‑employed taxpayers.

• Extended deadline for calendar‑year S corporations and partnerships that filed Form 7004 for a six‑month extension.

"Business tax rules are detailed and change regularly. Starting the filing process well before the deadline gives companies more time to identify potential tax benefits, correct mistakes, and respond to any issues that arise," says Ken LaMance, LegalMatch's General Counsel.

Businesses that don't currently have a tax attorney could greatly benefit by securing one to avoid large discrepancies. Platforms like LegalMatch.com, a trusted attorney-client matching platform, can be a great resource for tax accuracy. Business owners simply visit the website, submit case details to the confidential platform, and receive free matches with tax attorneys.

LegalMatch also has an extensive Online Law Library filled with informative and educational articles on various legal topics, including tax law. Reach out to LegalMatch today and get matched with a tax attorney.

About LegalMatch.com

LegalMatch is the nation's oldest and largest online legal lead-generation service. Headquartered in Reno, Nevada, LegalMatch helps people find the right lawyer and helps attorneys find new clients. LegalMatch's service is free to individuals and small businesses looking for legal help. For more information about LegalMatch, please visit our website or contact us directly.

Media Contact

Ken LaMance
press@legalmatch.com
(415) 946-0856

SOURCE: LegalMatch.com