Marketing Agency LLC Setup, Master Service Agreements, and Client Contracts: What to Get Right from Day One

LLC vs. S-Corp: What Structure Makes Sense for an Agency

Start as a single-member LLC in your home state. The LLC provides liability protection (keeping personal assets separate from business debts and lawsuits), pass-through taxation (profits taxed on your personal return), and credibility with clients. Formation costs $50-500 depending on your state. You'll also need a registered agent ($49-299/year if you're not available during business hours at a physical address). Once your agency nets $40,000-60,000/year in profit, elect S-Corp status (file Form 2553 with the IRS). The S-Corp election lets you pay yourself a reasonable salary and take remaining profits as distributions — reducing your self-employment tax burden by $4,000-8,000/year at moderate income levels. At this point, add a payroll service (Gusto or ADP) to handle quarterly estimated taxes properly.

The Master Service Agreement (MSA): Your Agency's Legal Foundation

An MSA is a framework agreement that governs the relationship between your agency and a client — payment terms, dispute resolution, liability limits, IP ownership, and termination rights. Once signed, individual project scopes (Statements of Work or SOWs) are executed under the MSA without re-negotiating core terms each time. Critical MSA clauses for marketing agencies: Liability cap — limit your liability to fees paid in the preceding 3 months, not the total project value. IP ownership — work product created becomes client property upon receipt of full payment. This means if a client doesn't pay, you retain the IP. Payment terms — net 15 or net 30, not net 60. Late payment fees of 1.5% per month after the due date. Termination — 30 or 60 days written notice required. Early termination fee (kill fee) equal to 50-100% of remaining contract value. Services: explicitly list what is and isn't included.

IP Ownership Clauses: Protecting Your Work and Your Process

Marketing agencies create two types of intellectual property: deliverables (ad copy, creative assets, reports, strategies) and processes (your proprietary methodology, frameworks, templates). Your MSA should clearly state that deliverables are 'work for hire' and become client property upon full payment, while your underlying processes, templates, and methodologies remain your property. Why this matters: you may use the same campaign structure framework for every e-commerce client. If a client claims ownership of that framework, it limits your ability to serve similar clients. A clean IP clause reads: 'Agency retains all rights to its proprietary processes, methodologies, tools, and know-how. Upon receipt of full payment, Agency assigns to Client all rights, title, and interest in deliverables created specifically for Client under this Agreement.'

Payment Terms and Kill Fees That Protect Your Cash Flow

Standard agency payment terms: 50% of project fees due upfront before work commences, 50% due upon project completion or delivery. For monthly retainers, invoice on the 1st for payment due by the 15th (or invoice 30 days in advance). This means you never carry more than 30 days of accounts receivable. Kill fee: If a client terminates a project in progress, they owe the agency for all work completed plus a kill fee of 25-50% of the remaining project value. This compensates for lost opportunity cost — you turned away other work to serve this client. Kill fees are standard in the agency industry and sophisticated clients expect them. Non-sophisticated clients who balk at kill fee provisions are often the ones most likely to invoke them.

Non-Compete and Non-Solicitation Clauses

Two types of clauses to include in your contracts: Non-solicitation of employees — prohibits clients from hiring your staff for 12-24 months after contract termination. This protects your team investment. Non-solicitation of contractors — same protection for your contractor network. True non-compete clauses (preventing you from working with competitors of the client) are controversial. Broad non-competes limit your ability to grow and may be unenforceable in states like California. If a client insists on a non-compete, limit its scope: same metropolitan area, same service category, 6-month maximum duration. Charge a premium for exclusivity — if you can't serve a client's competitors for 12 months, that exclusivity should cost 20-30% more per month.

Tools for Agency Contracts: Bonsai, HoneyBook, and DocuSign

Bonsai ($21-79/month) is purpose-built for agencies and freelancers: proposal creation, contract templates with e-signature, project scopes (SOWs), time tracking, invoicing, and client portals in one platform. It includes attorney-drafted contract templates for marketing services. HoneyBook ($19-79/month) is more CRM-focused with strong proposal and contract tools, better suited if your sales process involves multiple proposal revisions before signing. DocuSign ($15-45/user/month) is the industry standard for e-signatures if you're using your own contract templates from an attorney. For a new agency using template contracts, Bonsai provides the best value and fastest path to professional-looking documents. Have an attorney review your MSA once before you use it with clients — this one-time cost ($500-1,500) is far cheaper than the disputes it prevents.

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