US Tax Deadlines in 2026: A Simple and Clear Guide
Tax season can be very daunting, but when you are aware of the important dates in advance, everything becomes much simpler. In 2026, taxpayers will be submitting tax returns for income earned in 2025. This article outlines the important US federal tax deadlines in simple terms for individuals, freelancers, and business owners.
These deadlines apply only to federal taxes. Deadlines for state taxes may differ.
When Does Tax Filing Begin in 2026?
The Internal Revenue Service (IRS) will start processing 2025 tax returns from January 26, 2026.
Filing taxes early allows you to get your refunds quicker, avoid the last-minute rush, and resolve problems in time. Electronic filing is the fastest and most secure method of filing your tax return.
Principal Tax Filing Deadlines
Different categories of taxpayers have different deadlines.
Multi-Member LLCs and Partnerships
March 15, 2026
Single-Member LLCs and Individual Taxpayers
April 15, 2026
You are required to file your return and pay any taxes due by your deadline. In addition, if required, you must make your first estimated tax payment for 2026.
Requesting an Extension
You can request a free extension until April 15, 2026, if you are not able to file your tax returns on time.
If your request for an extension is accepted, you will have until October 15, 2026, to file your tax return. It is worth noting that the extension only applies to the deadline and not the payment date. To avoid penalties and interest on your tax returns, you must pay your tax liability by April 15.
Projected Tax Payments for 2026
Self-employed individuals and those with additional income who owe $1,000 or more in taxes must make estimated tax payments.
Dates that taxes are expected to be paid:
• April 15, 2026, the first quarter
• June 15, 2026: The second quarter
• September 15, 2026, the third quarter
• January 15, 2027: Fourth quarter
Other Important Dates
• January 15, 2026
The final estimated tax payment for the 2025 tax year
• February 2, 2026
Employers are required to issue W-2 forms (January 31 falls on a weekend).
• March 16, 2026
The deadline for filing returns or requests for extensions for partnerships and S-corporations
Useful Tax Filing Tips
• Obtain W-2s, 1099s, and expense statements well in advance
• E-file to get your refund quicker
• Tax filers living outside the country may be eligible for an extension
• Missing the deadline may mean penalties and interest
Final Thoughts
Knowing tax deadlines in advance can mean saving money and avoiding headaches. The 2026 tax filing season can be controlled and stress-free if taxpayers are able to prepare ahead of time and file on time.