California Disaster Area Tax Extension: Federal and State Deadlines

If a federally declared disaster or a Governor’s proclamation covers the California county where you live, work, or keep your tax records, the IRS and the Franchise Tax Board will push your filing and payment deadlines back, usually by several months. That is the core of the California disaster area tax extension: for most people it happens automatically, no form required, and no penalties or interest accrue during the postponement window.

The federal extension flows from a Presidential Major Disaster Declaration. The state extension flows from the Governor’s proclamation. Sometimes both apply to the same event; sometimes only one does. For the January 2025 Los Angeles County wildfires, both the IRS and the FTB extended the deadline to October 15, 2025, for affected taxpayers.¹

Who Counts as an Affected Taxpayer

Eligibility depends on your connection to the specific area named in the declaration. The IRS identifies the qualifying counties, and relief flows automatically to anyone whose address on file falls within those zip codes. The FTB generally conforms to the same counties but can extend relief independently under a standalone Governor’s proclamation.

You qualify as an affected taxpayer if any of the following apply:

Your principal home is in the declared disaster area (and your spouse’s, if filing jointly).
Your principal place of business is in the disaster area.
The tax records you need to meet a filing deadline are located in the disaster area, even if you live elsewhere.
You are a relief worker affiliated with a government or philanthropic organization assisting in the disaster area.
You were visiting the disaster area and were killed or injured as a result of the disaster.

The IRS can also extend relief to any other person it determines was affected.² One thing that does not qualify you: having a tax preparer inside the zone. You need your own connection to the area.

How Long the Federal Extension Lasts

Under Internal Revenue Code Section 7508A, the IRS can postpone filing and payment deadlines for up to one year after a federally declared disaster.³ In practice, most California declarations have granted several months. The Los Angeles wildfire relief pushing the April 15 deadline to October 15, 2025, is a typical shape.

During the postponement window, no failure-to-file or failure-to-pay penalties accrue, and no interest is charged on balances that would otherwise have been due. When the new deadline arrives, everything resumes as normal.

What the Extension Covers

The postponement applies broadly to most tax acts that fall due during the relief period:

Individual Form 1040 filing and payment, including the standard April 15 deadline.
Corporate, partnership, S corporation, and exempt organization returns.
Quarterly estimated tax payments due during the relief window. The IRS can waive any resulting underpayment penalty under IRC Section 6654.⁴
IRA and HSA contributions for the prior tax year, if the funding deadline falls within the window.
The 45-day identification and 180-day exchange periods for like-kind exchanges under Section 1031, when they overlap the disaster period.
Quarterly employment tax returns and excise tax returns with due dates during the relief period.²

Employment Tax Deposits Are Not Automatically Postponed

This one catches employers. The filing of the quarterly employment tax return gets postponed, but the underlying tax deposits generally do not. If you miss a deposit and later get a penalty notice, call the number on the notice and ask for abatement based on the disaster declaration. The IRS has indicated it will work with affected employers case by case, but the deposit itself is not deferred in the same blanket way as filing deadlines.

California State Tax Deadlines

The FTB provides state-level deadline relief that typically mirrors the federal extension period. State estimated tax payments, partnership returns, fiduciary returns, and the minimum franchise tax for corporations are all rolled into the blanket postponement. No late penalties or interest accrue during the relief period, and the extension applies to both filing and payment of California personal and corporate income taxes.

When the Governor declares a disaster independently of any federal declaration, state relief still applies to California taxes even though no federal extension exists. The FTB posts updated notices listing exactly which acts are postponed for each event, so check the disaster relief page for your specific declaration.

Sales and Use Tax Extensions Require a Request

The California Department of Tax and Fee Administration offers up to three months of additional time to file and pay sales and use taxes for directly affected taxpayers. This one is not automatic. You submit a request through CDTFA’s online services portal or by filing Form CDTFA-735.⁵ CDTFA may also extend deadlines for certain local and district taxes it administers.

Payroll Tax Extensions From the EDD

Employers directly affected by a disaster can request up to two months of additional time from the Employment Development Department to file state payroll reports and deposit state payroll taxes, without penalty or interest.⁶ Like the CDTFA extension, this requires a request rather than applying automatically.

What You Actually Have to Do

For most taxpayers, nothing. The IRS systemically codes accounts when FEMA identifies qualifying zip codes, so if your address of record is in the disaster area, no special form or request is needed. The FTB’s income tax extension works the same way.⁷

If Your Address on File Is Outside the Disaster Area

You still qualify if your business or records are in the zone, but the automatic coding may not pick you up. The IRS notes that original returns, paper or electronic, do not require a disaster designation. If you later receive a penalty notice, call the number on the notice and request abatement, citing the specific disaster declaration. The IRS will adjust the account.⁷ Keep documentation of your connection to the affected area readily accessible: proof of your address, business location, or record storage inside the zone.

If You Get a Penalty Notice by Mistake

Computer systems sometimes lag behind official disaster declarations, and penalty notices do reach taxpayers who are actually covered by the extension. Do not pay it. Contact the agency listed on the notice and reference the specific disaster declaration. Both the IRS and FTB have streamlined processes for abating these penalties.

One boundary worth naming: the extension postpones deadlines. It is not the same as the casualty loss deduction that lets disaster-affected taxpayers reduce their tax bill for uninsured property damage, and it is separate from the county-level property tax reassessment available for damaged or destroyed property. Those are different reliefs, with their own forms and their own deadlines, and you may be entitled to all three at once.

1
Internal Revenue Service. IRS – California Wildfire Victims Qualify for Tax Relief
2
Internal Revenue Service. Disaster Assistance and Emergency Relief for Individuals and Businesses
3
Office of the Law Revision Counsel. 26 USC 7508A – Authority to Postpone Certain Deadlines by Reason of Federally Declared Disaster
4
Office of the Law Revision Counsel. 26 USC 6654 – Failure by Individual to Pay Estimated Income Tax
5
California Department of Tax and Fee Administration. State of Emergency Tax Relief
6
Employment Development Department. EDD Disaster-Related Services
7
Internal Revenue Service. FAQs for Disaster Victims