Page with information about business licenses a new license in Alameda County, including information regarding unincorporated areas and renewing licenses. Most business owners will be able to take full advantage of e-filing.If you are unable to file electronically, please call our office at (510) 272-3848 and a BPS will be mailed to you. You are required to obtain a business license. A Business License is an annual tax you pay each calendar year for doing business within the unincorporated area of the County of Alameda. Alameda County, CA is offering 120 parcels for auction online. Who must obtain a seller's permit? What does engaged in business mean? Both the seller and purchaser of a group of assets that makes up a trade or business must use Form 8594 to report such a sale.