Tax Filing Deadline 2024 California. No application is required for an extension to file.  — the cdtfa assigns a filing frequency (quarterly prepay, quarterly, monthly, fiscal yearly, yearly) based on your reported sales tax or your anticipated taxable sales.

 — in this section, we’ll outline the key deadlines, including the california business tax filing deadline for 2024.  — california businesses must be aware of key tax dates in 2024.