Resources and 2026 Tax Deadlines

 Tax-related identity theft occurs when someone uses your stolen personal information, including your Social Security number, to file a tax return claiming a fraudulent refund. Find below useful information about tax-related identity theft, how to prevent it from happening and what to do if it happens to you. If you would like more information about any of the topics listed below, please check those websites or contact our office.

Identity Protection PIN Opt-In Program for Taxpayers
IRS Identity Theft Victim Assistance: How It Works
Identity Theft Information for Taxpayers
Taxpayer Guide to Identity Theft 

​​​​IRS Form W-4      IRS Form W-9    IRS Form SS-4     Business Deductions                        Oregon Business Registry Website  Financial/Tax Calculators   

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January 15, 2026

• 4th Quarter 2024 Estimated Tax Payment Due
  If you are self-employed or have other fourth-quarter income that requires you to pay quarterly estimated taxes, get them postmarked by January 15, 2026 tax deadline.
  

March 16, 2026

• Form 1120-S and Form 1065 Due
• Form 1120-S and Form 1065 Extensions Due
  

April 15, 2026

• Individual Tax Returns Due
  The due date for filing tax returns and making tax payments is April 15. If you haven't applied for an extension, e-file or postmark your individual tax returns by midnight.
• Individual Tax Return Extension Form Due 
• Form 1120 Due
• Form 1120 Extension Due
• 1st Quarter Estimated Tax Payment Due
  If you are self-employed or have other first-quarter income that requires you to pay quarterly estimated taxes, get your Form 1040-ES postmarked by this date. 
• Last Day to make a IRA Contribution for the prior tax year
  If you haven't already funded your retirement account for the prior year, do so by April 15, 2026. That's the deadline for a contribution to a traditional IRA, deductible or not, and a Roth IRA. However, if you have a Keogh or SEP and you get a filing extension to October 15, 2026, you can wait until then to put prior year money into those accounts.
  

June 15, 2026

• 2nd Quarter Estimated Tax Payment Due
  If you are self-employed or have other second-quarter income that requires you to pay quarterly estimated taxes, make sure your payment is postmarked by this date.
  

September 15,  2026

• 3rd Quarter Estimated Tax Payment Due
  If you are self-employed or have other third-quarter income that requires you to pay quarterly estimated taxes, make sure your third quarter payment is postmarked by Sept. 15, 2026 tax deadline.
• All Business Returns Due
  

October 15, 2026

• Extended Individual Tax Returns Due. If you had a filing extension on your tax return, you need to have it completed and  postmarked by October 15, 2026. 
  

January 15, 2027

• 4th Quarter Estimated Tax Payment Due
  If you are self-employed or have other fourth-quarter income that requires you to pay quarterly estimated taxes, have them postmarked by January 15, 2027 tax deadline.