Business owners with a Los Angeles County location, those that conduct business in Los Angeles but are outside the city and employers with remote staff in Los Angeles are required to obtain and renew their Business Tax Registration Certificate (BTRC).
The City of Los Angeles imposes an annual business tax and requires companies defined as Engaged in Business in the city to comply with the BTRC requirement. While the annual renewal is due on Jan. 1, 2026, it becomes delinquent after the last day of February. Feb. 28, 2026 falls on a Saturday this year; therefore, the City of Los Angeles has stated March 2, 2026 is the last day for the timely filing of a 2026 renewal.
WHY CLASSIFICATIONS MATTER
Los Angeles’s business tax is classification-driven: the activity classification determines the tax rate and rules used to measure taxable gross receipts. The city’s tax guidance emphasizes that business taxes are imposed for the privilege of being engaged in business within LA and are typically measured by gross receipts generated by the activity.
PRACTICAL IMPACT: The same company can materially change its tax result depending on whether it is reported under the correct fund class/activity and whether receipts are correctly segregated across activities where required (e.g., retail versus wholesale).
BUSINESS TAX CHALLENGES WITH APPORTIONMENT
A major Los Angeles business tax issue is apportionment; how much of total gross receipts are treated as derived from or attributable to Engaged in Business in the city versus outside of the city.
Los Angeles provides formal guidance through City Clerk’s Rulings No. 13, 14 and 15. They cover:
- Ruling 13 generally addresses sellers with no fixed place of business in LA and how receipts are attributed/apportioned
- Ruling 14 generally addresses sellers that do have a fixed place of business in Los Angeles and permits apportionment of receipts attributable to out-of-city selling activity (subject to the ruling’s framework/limitations)
- Ruling 15 generally addresses Professions and Occupations (service businesses) and requires inclusion of receipts from work performed in the city and a portion of receipts from work performed outside the city (in certain fact patterns) when the taxpayer maintains a place of business in LA
WHY THIS MATTERS: Applying these rulings correctly can reduce LA taxable gross receipts and avoid overpayment — while misapplication can create audit risk.
LOS ANGELES CITY IS NOT THE SAME AS LA COUNTY: VERIFY THE CITY BOUNDARY
A very common (and costly) assumption is that businesses in Los Angeles County are also considered businesses of the city. This is not always the case, and the reverse can also surprise taxpayers, as LA City boundaries are irregular. The Los Angeles Office of Finance provides a city boundary verification map (“Is Your Business in the City of Los Angeles?”) of what LA considers in the city for Business License Tax Purposes.
The Office of Finance notes that being within the highlighted boundary means a business operates within city limits for registration purposes.
The city also publishes zip/community listings alongside the warning that some zip codes are only partially within Los Angeles and requires a map to determine actual boundaries.
HIDDEN OPPORTUNITIES: CERTAIN FEES AND COSTS MAY BE EXCLUDABLE
Many business owners assume that gross receipts include everything. However, LA guidance recognizes specific exclusions that can materially reduce the tax base (depending on activity and facts). For example, for retail/wholesale classifications, LA identifies exclusions such as:
- Out-of-state sales shipped directly to points outside California
- State/local sales taxes
- Returned merchandise (cash/credit allowed)
- Certain cash discounts allowed or taken
The city also cautions that general “business expenses” are not automatically excludable simply because they are costs — exclusions are rule-based and classification-dependent.
KEY TAKEAWAYS: A targeted review often finds legitimate reductions taxpayers did not know existed (and avoids the opposite mistake — improper expense “netting”).
NEXUS/FILING REQUIREMENT: LOCATION OR REMOTE EMPLOYEES CAN TRIGGER LA CITY FILING
Los Angeles’s position is broad: every person who engages in business within the city must obtain the necessary registration certificate(s) and pay the tax or obtain an exemption. That risk is no longer limited to business owners with office space in LA. Because of the boom in remote work, business owners are now exposed to LA City filing when they have employees working from home within LA City boundaries. This is the case even when a company is headquartered elsewhere.
AB 63: STATE–CITY INFORMATION SHARING INCREASES NONCOMPLIANCE RISK
Los Angeles explicitly states that under AB 63, the California Franchise Tax Board (FTB) can share certain information with the city to help identify businesses not registered to pay LA business tax. The city also explains that AB 63 letters are sent when the city receives FTB information indicating the recipient may be engaged in business in Los Angeles but does not hold a BTRC.
PRACTICAL IMPLICATION: If a business files a California return from an address or location connected to LA City (or otherwise appears in shared datasets), the city may be able to detect noncompliance and initiate outreach/assessments.
TAKEAWAYS FOR TAXPAYERS
As a variety of business owners are impacted by the Los Angeles business tax, it is important to be aware of a few key takeaways:
- Calendar the deadline: March 2, 2026 for timely filing this year
- Confirm city boundary: Use LA’s boundary tool, especially for partial zip areas
- Validate classification(s): Classification drives rates and the measure of tax
- Apply apportionment correctly: Review City Clerk’s Rulings 13, 14 and 15 where applicable
- Look for legitimate exclusions: Especially retail/wholesale and other fact-specific items that taxpayers miss
- Do not ignore remote work: An LA City employee presence can create filing exposure
- Assume visibility is higher: AB 63 data sharing increases audit/notice risk for unregistered businesses
Talk to GHJ’s State and Local Tax Practice to learn more about your business tax responsibilities.
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