California sales tax return 2026

1. Click ‘Get Form’ to open the California Sales Tax Return in our editor.
2. Begin by entering your account number and the period begin and end dates at the top of the form.
3. Fill in your taxpayer name, address, city, state, and ZIP code. If this is an amended return, check the appropriate box.
4. Proceed to line 1 and enter your total gross sales. This includes all sales related to your business.
5. For line 2, report any purchases subject to use tax that were made without paying California sales tax.
6. Continue filling out lines 3 through 12 by adding or subtracting as instructed for total taxable transactions.
7. Complete lines 13 through 20 for calculating total sales and use tax due, including any penalties or interest if applicable.
8. Finally, sign and date the form before submitting it online or mailing it to the CDTFA.

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