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@MHLG wrote:

but qualified for the automatic extension of time to file and pay last year because I, as the tax PREPARER, work/reside in a federal disaster area (California).

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That is not a reason for the extension.  The reason could be for a taxpayer "whose records necessary to meet a deadline occurring during the postponement period are located in the affected area", but that doesn't necessarily mean they get the extension merely because you live in California.

No, *IF* they qualify, the date is November, not October.  If you are in California, you really should know that.

*IF* they qualify for the extension, then "Taxpayers qualifying for relief who live outside the disaster area need to contact the IRS at 866-562-5227."

https://www.irs.gov/newsroom/for-california-storm-victims-irs-postpones-tax-filing-and-tax-payment-d...