California Nonprofit Tax Deadlines 2026
Complete guide to Nonprofit filing dates, extensions, estimated payment schedules, and required forms in California for the 2026 tax year. California imposes a state income tax, so Nonprofit entities must file both federal and state returns.
California Nonprofit filing deadline
CA allows a 7-month extension for exempt organizations.
Due: May 15, 2026
Extension: Dec 15, 2026
Form: Form 199 / 199N
Estimated payments
No state estimated payment schedule listed.
Due: N/A
California Nonprofit Tax Calendar at a Glance
| Event | Date |
|---|---|
| Filing deadline | May 15, 2026 |
| Extension deadline | Dec 15, 2026 |
FAQ
When is the Nonprofit tax filing deadline in California for 2026?
The California Nonprofit tax return is due May 15, 2026 for the 2026 tax year. An extension is available until Dec 15, 2026.
Does California require Nonprofit estimated tax payments?
Estimated payments are not typically required at the entity level for Nonprofit in California, but confirm with California Franchise Tax Board.
What form do I file for a Nonprofit in California?
Nonprofit entities in California file using Form Form 199 / 199N. You can download the form from California Franchise Tax Board at https://www.ftb.ca.gov.
Can I get an extension for my California Nonprofit tax return?
Yes. California allows an extension for Nonprofit returns until Dec 15, 2026. Note that an extension gives you more time to file, not more time to pay — any tax owed is still due by the original deadline of May 15, 2026.
What are the penalties for filing late in California?
California typically charges a failure-to-file penalty (usually 5% of unpaid tax per month, up to 25%) and a failure-to-pay penalty (usually 0.5-1% per month). Interest also accrues on unpaid balances. Filing for an extension by the original deadline avoids the failure-to-file penalty but not the failure-to-pay penalty.
Where can I file California Nonprofit taxes?
File through California Franchise Tax Board. Visit https://www.ftb.ca.gov for e-filing options, downloadable forms, and payment portals.
California Estimated Tax Payments
View the full quarterly estimated payment schedule for California, including all entity types and payment methods.
View California estimated payments →