How can I find my exempt organization's tax year?

• The tax year of any organization will usually be a period of 12 consecutive months.
   
• If your organization follows a Calendar Tax Year, the tax period will be 12 consecutive months, starting from January to December.
   
• If your organization follows a fiscal tax year, the tax period can start in any month and run for 12 consecutive months. But the end date of any Fiscal Tax Year should be the last day of that month except December.

The tax year or accounting period of your organization can be found in:

• Your organization's bylaws.
   
• Your tax-exempt status application or determination letter that you received approving your tax-exempt status.
   
• Copy of your previous year's filing return with the IRS.
   
• Application Form SS-4, filed by your organization to obtain its employer identification number (EIN).