Anyone operating or doing business in the City of Oakland is required to file and pay an annual business tax. Who must obtain a seller's permit?What does engaged in business mean? Explore the 2024 guide to Oakland sales tax rates. Understand state, county, and special tax rates for businesses in Oakland, California. A Business License is an annual tax you pay each calendar year for doing business within the unincorporated area of the County of Alameda. Oakland based businesses should obtain Zoning Clearance prior to applying for a Business Tax Certificate. Apply for a New Business Tax Certificate online or at the Business Tax Office. Tangible property owned, claimed, possessed or controlled in the conduct of a profession, trade or business may be subject to property tax. Oakland's sales tax rates can differ depending on your zip code and district, reflecting the specific needs and funding requirements of each area.