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How to prepare and file a California sales tax return
A sales tax return begins with reconciled sales and purchase records. Use this workflow to organize inputs, review deductions and preserve filing evidence; the companion calendar guide covers due dates.
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General information, not legal or tax advice.
Confirm account access and the reporting period
CDTFA online services supports return filing, payments and account review. Existing profiles use a username and password, while prior Express Login users without a profile are directed to sign up. Confirm the correct account and period before entering figures, especially when managing more than one business.
Sources: CDTFA - Online Services Overview
Assemble sales and business-purchase information
CDTFA requires a return even when there is no tax due, no sales or only nontaxable sales. Sales belong to the period of sale even when collected later. Permit holders also report use tax on business purchases with their returns, so review purchase invoices alongside the sales summary.
Sources: CDTFA Publication 73 (January 2026)
Support deductions before transferring totals
Some businesses qualify for the shorter return depending on their deductions. Reconcile each claimed deduction to supporting records and retain an explanation of the category used. CDTFA allows rounding to whole dollars; apply the chosen approach consistently and preserve the underlying detail for later review.
Sources: CDTFA Publication 73 (January 2026)
Complete payment and save both confirmations
CDTFA describes payment options including a bank debit after online filing, which can be scheduled up to the due date. Keep the return submission and payment confirmation separately, then reconcile the ledger liability to the approved return. Use the linked calendar guide to check the assigned filing schedule.
Sources: CDTFA Publication 73 (January 2026)
Sources: confirm account access and the reporting period
Continue with cDTFA sales tax filing dates and frequency
Prepare a supported sales tax filing
Tidwell helps reconcile sales and purchase records and supports sales tax filing within an agreed scope. Bring your account instructions and the questions you need to review with your CPA.