City of Lomita
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Government Requirements Kit
Sales Tax Registration Go to topics
This form is used to register your business by mail with the sales tax authority (State Board of Equalization). You will receive a seller's permit, which allows you to sell goods and requires you to collect sales tax if you sell to the final user. The permit has a resale number which can be used to waive sales tax on items you buy to make your product (see sales tax exemption form).
Legally, the seller is responsible for paying sales tax, but may be "reimbursed" by your customers (the purchaser). In practice, almost all sales tax is reimbursed, therefore most people think that it is the purchaser's obligation. We will continue this "myth" in our instructions because it is easier to understand. However when you talk to the Board of Equalization or read their pamphlets, they will state that you are responsible for paying the tax…collecting it from your customers (i.e. getting reimbursed) is your option.

WARNING: This is a mail-in registration form which takes two to three weeks for processing. If you need a seller's permit quickly, many Board of Equalization offices offer a same day service for people who go in-person.

Forms and information BT-400 Application for Seller's Permit
Collecting Sales Tax
Who uses this form? Any business which sells tangible products. Complete this form even if you will not be collecting sales tax (i.e. you just sell wholesale). Businesses which exclusively sell services should not fill out this form.
Who collects sales tax? Only businesses that sell to the end user. Businesses selling wholesale will have their customers sign sales tax exemption certificates in lieu of paying sales tax. Note: Wholesale businesses really benefit from complete BT-400, since it costs them nothing, but exempts them from paying sales tax on items used in their product.
When to file No earlier than 30 days prior to selling.
Approximate cost $0 if you only sell wholesale (ie. your purchaser will sell the item to the end user).

If you sell retail, generally no deposit is required. The major exceptions are if you have previously had a permit and had multiple late payments, bounced checks, your permit was revoked, or had other unsatisfactory circumstances.

How to complete the form Complete both sides of this form. You will need to know:
  • Name, address, social security number, drivers license number, and a personal reference (name, address and phone) for all corporate officers.
  • Bank
  • Accountant or person who will do your books
  • Landlord and his/her address(if any)
  • Merchant card processor (if you are accepting credit cards)
  • Web address
  • Key California-based suppliers
  • An estimate of monthly sales
  • Your state alcohol permit number (if applicable)
In the estimate of monthly sales, the form asks you to estimate the sales subject to sales tax. Include all your sales unless
  • You expect the buyer will have a resale number and purchase your goods for resale
  • Sales not subject to sales tax (services and exempt items described in Collecting Sales Tax)
  • Sales you will make out-of-state
All corporate officers must sign this form.
Ask for pamphlets Be sure to visit http://www.boe.ca.gov/sutax/staxpubsn.htm to download any publications that relate to your business.
More than 1 location? You do not need another permit. The prefix of your sellers permit will be changed, and the Board of Equalization may request a deposit.
Your responsibilities Remember, you have these responsibilities
  • You must keep records for four years of: sales, purchases made for your business, and deductions you declare on your sales tax returns
  • You must file sales tax returns (BT-401) even if you didn't sell anything during the prior period.
  • You are responsible for sales tax, even if your purchaser didn't pay you.
  • You must contact the Board of Equalization if you move, change ownership, discontinue or sell your business.
Questions? Visit www.boe.ca.gov or phone the Board of Equalization at (800) 400-7115. Mail the completed form to the office nearest you:

Click here for the Board of Equalization Offices.

 
 
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