Our goal is to inform and assist you with business property taxation matters in your efforts to operate a successful business in Santa Clara County. To apply for a business license, you may apply online here or complete the Business License Application (New Business Tax Affidavit form).All home-based businesses must complete a Business License Application. Home-based businesses can be located in any residential dwelling unit within the City. A sole proprietorship can be the right choice for low-risk business activities or as a temporary status while you test your business ideas. Find out what you can build on your property. Review zoning ordinance, development guidelines, and property profile. Members enjoy numerous network opportunities. Find help for Small Businesses in San Jose, including free legal services, financial resources, grants and help with safety or blight issues. STEP 1: Verify the Zoning District of the property using MapSantaClara.