California’s Schedule B, filed on form CDTFA-531, is a supplement to your sales tax return that allocates your taxable sales by county so the 1 percent local portion of the tax reaches the jurisdiction where each sale actually happened. It does not change what you owe. It only controls where the local share goes. Sellers often confuse Schedule B with the place to claim deductions, but deductions from gross receipts belong on the main return (CDTFA-401-A), not on Schedule B.
What Schedule B Does
California’s base statewide sales and use tax rate is 7.25 percent, and 1 percent of that is a local tax that gets distributed to the county where the taxable transaction occurred.1California Department of Tax and Fee Administration. Local and District Tax Guide for Retailers For a business that operates from one fixed storefront, the CDTFA handles that allocation automatically using the seller’s permit address. Every sale is presumed to happen there, so the local 1 percent flows to that county without any extra paperwork.
Schedule B exists for the situations where that assumption breaks down. When you file CDTFA-531, you list the dollar amount of taxable transactions that occurred in each California county.2California Department of Tax and Fee Administration. CDTFA-531 Schedule B Detailed Allocation by County of Sales and Use Tax Transactions The form redirects the local share to the correct counties instead of defaulting it all to the county on your permit.
Your total tax liability is the same whether you file Schedule B or not. What changes is which county government receives the money.
Who Has to File Schedule B
Schedule B applies to businesses whose sales don’t all take place at a single permanent location. The CDTFA-531 instructions identify these categories of filers:2California Department of Tax and Fee Administration. CDTFA-531 Schedule B Detailed Allocation by County of Sales and Use Tax Transactions
- Construction contractors, who report materials and fixtures by the county where the jobsite is located.
- Auctioneers, who allocate sales made at temporary auction locations to the county where each auction was held.
- Vending machine operators, who report taxable sales from machines in each county where the machines are placed.
- Out-of-state retailers authorized to operate in California under Revenue and Taxation Code section 6015, and those voluntarily collecting use tax, who allocate sales to the county of delivery or the county where their representatives operate.
- Mobile and itinerant vendors, who carry merchandise and sell without a permanent business location, reporting sales in the county where each transaction occurred.
- Motor vehicle lessors not required to use Schedule F, who report leases in the county where the leased vehicle is registered.
If you run a single retail location and every sale happens there, Schedule B doesn’t apply to you. The CDTFA allocates your local tax automatically based on your permit address.
How Schedule B Fits With the Main Return
Your primary filing is the CDTFA-401-A, the state, local, and district sales and use tax return. On page 1, you report all sales starting at line 1, deduct your nontaxable transactions on line 11 (which flow in from page 3), and arrive at your taxable sales on line 12. The return then calculates tax at the state rate of 6 percent, the county rate of 0.25 percent, the local rate of 1 percent, and any district taxes that apply.3California Department of Tax and Fee Administration. CDTFA-401-A State, Local, and District Sales and Use Tax Return
Schedule B rides alongside that return as an attachment. It takes the taxable sales figure you’ve already calculated and slices it up by county. If your business also sells in voter-approved district tax areas, you may need to file form CDTFA-531-A2 separately for the district tax allocation.3California Department of Tax and Fee Administration. CDTFA-401-A State, Local, and District Sales and Use Tax Return
One point of confusion worth naming directly: deductions for sales for resale, exempt items, separately stated repair or installation labor, returns, discounts, and bad debts all belong on page 3 of the CDTFA-401-A, not on Schedule B.4California Department of Tax and Fee Administration. Instructions for Completing CDTFA-401-A State, Local, and District Sales and Use Tax Return Schedule B has no role in reducing your taxable sales. If you use it that way, you’ll misreport both your county allocation and your deductions.
Records That Support Your County Allocation
The CDTFA requires you to maintain all records necessary to determine your correct tax liability, including invoices, receipts, contracts, and your standard accounting records.5California Department of Tax and Fee Administration. Regulation 1698 – Records For Schedule B filers, that general obligation extends to whatever documentation ties each taxable transaction to a specific county.
For a construction contractor, that means linking every materials purchase to a jobsite address. For a vending machine operator, it means records showing which machines sit in which counties. Auctioneers need to tie sales to the location of each auction; mobile vendors need transaction records that identify where each sale occurred.
If you can’t substantiate your allocation during an audit, the CDTFA may reassign the local tax to your permit county. That creates knock-on problems: the county that should have received the revenue has a claim on it, and the county that received it in error may need to return it. Getting the allocation right the first time, with records to back it up, avoids that whole chain.
The Bottom Line for Filers
If you operate from one fixed location, you almost certainly don’t need Schedule B. If you’re a contractor, auctioneer, vending machine operator, itinerant vendor, qualifying out-of-state retailer, or vehicle lessor, you do, and the form is where you tell the CDTFA which counties should receive the 1 percent local share of the tax you already collected. Treat it as a routing instruction, not a place to reduce your tax. Your deductions live on the main return.