California CDTFA Sales Tax Registration Process for New Businesses in 2026

Key Takeaways

• California sellers generally register for a CDTFA seller’s permit before making sales of tangible personal property in California.
• Registration is completed in the CDTFA Online Services portal and can include sales and use tax plus other CDTFA programs when applicable.
• California’s statewide base sales tax rate is 7.25%, with district taxes creating higher combined rates in many cities.
• California has marketplace and “economic nexus” rules that can require out-of-state sellers to register even without a physical presence.

Registering for California sales tax is one of the first compliance steps for a new business selling taxable goods in the state. Below is the 2026-focused CDTFA process, what you’ll need, and what to expect after you register.

Do I need a California seller’s permit (CDTFA) for my new business?

In California, you generally must register with the California Department of Tax and Fee Administration (CDTFA) for a seller’s permit if you will sell or lease tangible personal property that would ordinarily be subject to sales tax (for example: merchandise, prepared items sold as taxable, certain equipment, and many physical goods).

Common “yes, you need a permit” situations in California

• Retail sales from a store, warehouse, kiosk, booth, or pop-up in California.
• Online sales shipped to California, including out-of-state sellers meeting California’s economic nexus threshold.
• Temporary sales at events (festivals, trade shows, fairs) where taxable goods are sold.
• Making sales through a marketplace may still require registration depending on your facts, even though marketplaces often collect certain taxes.

California-specific quirk: district taxes can change your combined rate by location

California’s statewide base rate is 7.25%, but many locations have additional district taxes. That means your correct rate can differ by city block, not just by county. For new businesses, this often impacts:

• How you configure checkout tax calculations (especially for delivery addresses).
• Whether you must register for multiple locations/outlets under one permit.
• How you report tax by jurisdiction on your CDTFA return.

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How do I register for California sales tax in CDTFA Online Services (2026 steps)?

California sales tax registration is handled through the CDTFA’s portal named CDTFA Online Services. The registration you are usually looking for is the Seller’s Permit (sales and use tax permit).

Step-by-step: CDTFA seller’s permit registration workflow

1. Set up access in CDTFA Online Services and start a new registration for a Seller’s Permit.
2. Enter your business structure (sole proprietor, partnership, LLC, corporation) and ownership details.
3. Provide business locations (California address for your outlet/warehouse/office, if applicable) and mailing address.
4. Describe what you sell and your start date for selling in California.
5. List vendors/suppliers if requested and provide your estimated sales volume.
6. Review additional program questions (for example, special taxes and fees if your activities trigger them).
7. Submit and save your confirmation details.

Information you should have ready (California-focused)

• Federal EIN (commonly needed for LLCs, corporations, partnerships, and employers).
• CA business entity details (officers/managers/members, responsible parties).
• NAICS/business activity description consistent with what you will sell in California.
• Start date for making sales in California and any anticipated event dates if you are a temporary seller.
• Banking and contact details for future payments/filings and account notices.

What you receive after registration

• California Seller’s Permit account under CDTFA, tied to your legal entity and locations/outlets.
• Filing frequency assignment (commonly quarterly for many small businesses, but CDTFA may assign another schedule based on expected taxable sales).
• Instructions for returns and payments through CDTFA Online Services.

What sales tax rate do I charge in California (state + local) and where do I find the correct combined rate?

California’s statewide base sales tax rate is 7.25%. Your combined rate is often higher due to district taxes that vary by location. For many businesses, the combined rate is determined by the delivery address (shipped goods) or the point of sale (over-the-counter sales), depending on what you sell and how the transaction occurs under California rules.

California rate snapshot (examples)

The table below provides a quick view of the statewide base rate plus example combined rates in major cities. City rates can change with district tax updates, so treat these as planning figures and verify your exact location rate before go-live.

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California CDTFA registration requirements and compliance details (what new businesses miss)

Definition: “Seller” vs. “retailer” vs. “use tax” in California

• Seller/Retailer: You are making taxable retail sales in California and must collect and remit sales tax when required.
• Use tax: Often applies when tax wasn’t collected at purchase. California can require certain businesses to register to report use tax based on how they buy/bring items into the state for storage, use, or consumption.

Economic nexus and marketplace rules (California-specific compliance trigger)

California can require an out-of-state seller to register with CDTFA based on economic nexus—meaning you exceed a California sales threshold even without a physical location in the state. In addition, marketplace structures can affect who must collect and remit on marketplace-facilitated sales, but California businesses frequently still register to properly report direct (non-marketplace) sales and manage resale certificates and compliance.

Resale certificates and inventory purchasing

In California, if you buy inventory for resale, you typically provide a California resale certificate to your supplier rather than paying sales tax at purchase. Your Seller’s Permit supports that workflow. Keep resale documentation organized by vendor and transaction, because CDTFA audits often focus on whether purchases claimed for resale were actually resold.

Account changes: adding locations, doing events, and closing the permit

• New outlet/location: You may need to add an additional location/outlet to your CDTFA account rather than creating a brand-new permit.
• Temporary events: If you sell at California events, ensure your permit covers the activity and that you apply the correct district rate for the event location.
• Stop selling: Close the Seller’s Permit account properly in CDTFA Online Services and file any final return to avoid future notices.

California forms and program names you may see during registration

Common CDTFA sales and use tax forms (names used in California)

• CDTFA-400-SPA: Application for Seller’s Permit (California sales and use tax permit application).
• CDTFA Sales and Use Tax Return (filed through CDTFA Online Services based on your assigned filing schedule).

Other CDTFA programs that can appear (activity-dependent)

Depending on what you sell (for example, fuel, tobacco/nicotine products, cannabis, alcohol-related activities, or certain fees), CDTFA Online Services may prompt you about additional registrations beyond the basic Seller’s Permit.

Practical setup checklist for a new California seller

Before your first taxable sale in California

• Register in CDTFA Online Services and obtain your Seller’s Permit.
• Configure your POS/ecommerce tax settings to handle district taxes by ship-to or location rules.
• Create a system to store resale certificates and exemption documentation (if applicable to your products/customers).
• Set calendar reminders for your CDTFA return filing frequency once assigned.

Internal resources you can review next

For broader registration planning, you can also browse