Marketing and advertising agencies in the Bay Area share a financial pattern: recurring retainer revenue, sub-contracted creative talent, and increasingly remote teams serving clients across state lines. Two issues quietly accumulate exposure: AB 5 classification of 1099 contractors and multi-state nexus from client work outside California. Both require deliberate handling.
- AB 5 applies strict ABC tests to most worker classifications in California — the business-to-business exemption is narrow and does not automatically apply to creative contractors.
- Multi-state nexus is triggered by remote workers and (in some states) by client revenue thresholds — both grow as agencies scale.
- Retainer revenue recognition differs from project revenue — mixing them up creates both compliance and management reporting problems.
- S-corp election timing matters: most agency owners delay it past the point where it would save material payroll tax.
- California PTET election can recover SALT deductibility for pass-through agency partners — worth thousands annually for most profitable firms.
AB 5 and contractor talent
California AB 5 codified the ABC test for worker classification: a worker is presumed to be an employee unless the hiring entity proves all three of (A) free from control, (B) performing work outside usual course of business, and (C) customarily engaged in independently established trade. For an agency hiring designers, writers, or developers, part (B) is the hardest — if you sell design services and you hire a 1099 designer, that work is your usual course of business.
The business-to-business exemption helps if the contractor is itself a business entity (LLC, corp) doing work for the agency on a business-to-business basis. The exemption has 12 specific conditions, all of which must be met. Most informal 1099 relationships do not.
Multi-state nexus
Most agencies in the Bay Area now have at least some remote workers and at least some clients in other states. Either can trigger nexus — a tax presence — in those states. Nexus means state income tax filing requirements, potential sales tax obligations, and apportionment of income across states.
Wayfair (the Supreme Court decision) made economic nexus thresholds for sales tax common across states. For services, thresholds vary widely. Agencies serving clients in New York, Texas, and Florida may have filing obligations in each without realizing it.
Revenue recognition: retainer vs. project
A monthly retainer is recognized ratably over the service period. A project fee is generally recognized as the work is performed (percentage-of-completion) or on delivery. Media-pass-through revenue (where the agency bills the client for media spend) often should be recognized net rather than gross — a meaningful difference in reported revenue and gross margin.
PTET for California agencies
California’s Pass-Through Entity Tax (AB 150) allows eligible partnerships and S-corps to pay state income tax at the entity level, recovering a federal deduction that the $10K SALT cap took away. For a profitable agency partnership with multiple partners, this is worth real money annually. The election must be made each year and requires a June 15 deposit.
Frequently Asked Questions
What does typical AB 5 exposure look like for an agency?
For an agency that hires 1099 creative contractors as part of its usual work, exposure includes back wages, payroll taxes, penalties, workers comp premiums, and potential class action liability. The dollar exposure for misclassified contractors over a multi-year period can easily reach six figures.
When does multi-state nexus actually kick in?
It varies by state. Some states (e.g., California, New York) have very low thresholds for services nexus. Others require physical presence or specific revenue thresholds. Wayfair settled sales tax nexus, but services nexus is a state-by-state question that needs to be reviewed annually as the client base grows.
Can we have remote workers in other states?
Yes, but each remote worker creates payroll tax obligations in their state, potential corporate income tax filing requirements, and sometimes unemployment insurance obligations. The administrative cost of multi-state compliance grows with each new state.
When should we elect S-corp?
For most Bay Area agencies, S-corp election starts paying off once net income comfortably exceeds $80K-$120K. The savings on the distribution portion of owner compensation compounds annually. The analysis should consider owner comp norms, reinvestment needs, and the practical effect on benefits and retirement plans.
Should we file PTET in California?
For most profitable Bay Area agency partnerships, yes. The PTET election recovers a federal deduction the SALT cap took away. The savings can be meaningful per partner, particularly for high-income partners. The June 15 deposit deadline must be met and the election made annually.
Scaling your agency?
We work with Bay Area marketing and advertising agencies on AB 5 compliance, multi-state nexus, and tax planning. A complimentary 30-minute consultation.
Active member of the AICPA and CalCPA. Tax strategy and advisory for Bay Area business owners, real estate investors, and high-net-worth families.
This article is for general information and does not constitute tax, legal, or investment advice. Individual situations vary; please consult a CPA before making tax elections. Milestone CPAs is licensed in California and serves clients across the Bay Area and Tri-Valley.






