Marketing Agency Deductions: The Software Stack, the Ad Spend That Isn't Your Revenue, the Freelancers on 1099s, the Retainer Paid in Advance, and the Pitch You Didn't Win

A marketing agency's expenses are people, software, and other people's advertising money. The last of these causes the most confusion: an agency that spends $400,000 of a client's budget on ad platforms may have $400,000 of pass-through or $400,000 of revenue and expense, depending on who contracted with the platform and who bears the risk. Everything else — the stack, the freelancers, the retainers, the pitch costs — is a service business with a few specific rules.

Ad spend: whose money is it

| Arrangement | Tax treatment | |---|---| | Client's own ad accounts, billed to the client's card; agency manages them for a fee | Not the agency's income or expense; only the fee is revenue | | Agency pays platforms from client funds held in a separate account, as the client's agent under the client's platform contracts, and bills a management fee | Pass-through; the agency reports the fee; the client funds are generally not its revenue | | Agency contracts with platforms in its own name, pays them, and bills the client media plus a markup or commission | Generally gross revenue for the media billed; platform costs are the agency's expense; the agency bears credit risk |

The third model inflates gross receipts — affecting the small business thresholds (such as the $32 million gross receipts test for 2026), Form 1099-K reconciliation, and the agency's apparent size — while profit is the same. Where a given arrangement falls is a facts-and-circumstances question rather than a bright-line rule: the contracts, who is liable to the platform, whether the agency acts and is held out as the client's agent, and who bears the credit risk all matter. Agencies that run media in their own name can show gross receipts in the millions on modest net income and should keep the media ledger reconciled to platform invoices.

The stack

Project management, design, analytics, SEO, social scheduling, email platforms, customer relationship systems, stock image and font licenses, AI tools, and the agency's own website hosting are subscriptions deducted as paid. A cash-method agency can generally deduct an annual prepayment when paid under the 12-month rule, as long as the term ends within 12 months of starting and before the end of the following tax year. Off-the-shelf software bought outright (rare now) is depreciated over three years or expensed under Section 179 or bonus depreciation. Licenses purchased for a specific client's project and billed through are costs of the job.

Freelancers and 1099s

Agencies rely on freelance designers, writers, developers, and media buyers. A freelancer who runs her own business, works for several agencies, sets her own hours, and uses her own tools is a contractor: pay her, collect a W-9, and issue Form 1099-NEC once the year's payments reach $2,000 (the threshold for payments made in 2026, up from $600, and indexed for inflation after 2026). A "freelancer" who works the agency's hours in the agency's systems on the agency's accounts for a year is likely an employee under the common-law control test, and the classification rules — and the penalties for getting it wrong — apply. Payments to a freelancer's corporation (including an LLC taxed as an S corporation) generally need no 1099, though legal fees are reportable even when paid to a corporation; payments through a platform that reports on Form 1099-K generally need none from the agency either.

Retainers and advance payments

A monthly retainer billed in advance is income when received for a cash-method agency. A client that prepays a quarter or a year produces income in the month of payment, with the work spread across the term; an accrual-method agency can elect to include only the part earned by year-end — measured by its audited or other applicable financial statement if it has one, or by the work actually performed if it does not — and must include the rest the next year, never later. Retainers held as true deposits against future work — refundable at the client's option, so the agency lacks complete dominion over them — may not be income until applied; the contract and the accounting have to agree.

The office

Coworking memberships and private office rent are deductible. A principal who works from home and uses a dedicated room regularly and exclusively for the agency has a home office deduction; the agency's reimbursement of an employee's substantiated home office costs through an accountable plan is deductible to the agency and generally tax-free to the employee when the home office is for the agency's convenience.

Equipment, travel, meals, and the things that aren't deductible

Computers, monitors, cameras, lighting, and microphones are equipment — items of $2,500 or less per item or invoice can be expensed under the de minimis safe harbor, and the rest under Section 179 or bonus depreciation. Travel to clients and conferences is deductible, meals at 50 percent, and conference registrations in full. Client entertainment — tickets, events, golf — is not deductible; a dinner with a client is a 50 percent meal if someone from the agency attends and it is not lavish (food bought at an entertainment event is deductible only if separately stated). Gifts to clients are limited to $25 per recipient. Awards entries and professional or trade association memberships are deductible marketing and dues; dues to clubs organized for business, pleasure, recreation, or social purposes are not.

Pitches, bad debts, and the work you didn't win

The cost of pitching — staff time, freelancers, travel, a comp campaign — is an ordinary business expense whether or not the agency wins, deducted as incurred. A client who does not pay is a bad debt deduction only for an accrual-method agency that recorded the receivable as income; a cash-method agency that never reported the income has nothing to deduct, only time lost. Spec work and pro bono campaigns are deductible for the out-of-pocket costs, never for the value of the agency's time.

Worked example. A six-person agency bills $1.1 million in fees and manages $2.4 million of client media. For most clients, the media runs through the clients' own ad accounts and is never the agency's; for two clients the agency contracts with platforms directly and bills media plus 15 percent — $600,300 of media billings is gross revenue, offset by $522,000 of platform costs ($522,000 × 1.15 = $600,300, a $78,300 markup), so gross receipts are about $1.7 million while the other $1,878,000 of media never touches its books. The agency deducts $48,000 of software, $190,000 paid to freelancers (eleven 1099-NECs, each for $2,000 or more), $36,000 of coworking rent, $14,000 of equipment, $22,000 of conference travel, $4,500 of meals (half of the $9,000 spent), and $31,000 spent pitching four accounts it did not win — $390,500 of deductions in all with the bad debt below, apart from the platform costs and payroll. A client's $45,000 unpaid invoice is written off — the agency is on the accrual method and had recorded the income.

Official sources

The IRS explains: “Deductions for meal expenses generally remain limited to 50% of such expenses.” — Internal Revenue Service, Publication 334 (2025), Tax Guide for Small Business, https://www.irs.gov/publications/p334

The IRS explains: “An individual working remotely, for example, performing services for you from a location other than an office operated by you, is your employee under the common-law rules, if you can control what will be done and how it will be done.” — Internal Revenue Service, Independent contractor (self-employed) or employee?, https://www.irs.gov/businesses/small-businesses-self-employed/independent-contractor-self-employed-or-employee

The regulation provides: “Except as otherwise provided in this section, a taxpayer that uses the non-AFS deferral method of accounting includes the advance payment in gross income for the taxable year of receipt to the extent that it is earned in that taxable year and includes the remaining portion of the advance payment in gross income in the next succeeding taxable year.” — Legal Information Institute, Cornell Law School, 26 CFR § 1.451-8 - Advance payments for goods, services, and certain other items., https://www.law.cornell.edu/cfr/text/26/1.451-8

Related guides

• What Is an SSTB? Specified Service Trade or Business
• Revenue Recognition for a Consulting Firm: Cash or Accrual, Retainers, Milestones, and the Unbilled Work That Isn't Income Yet
• 1099-NEC Filing Rules: Who Gets One and the New Threshold
• Bad Debt Deduction: When Unpaid Invoices Are Deductible
• Contractor or Employee? How the IRS Decides

Next step

Fairlight Accounting handles U.S. domestic, cross-border (U.S.–Canada), and international tax returns, plus bookkeeping, payroll, and CFO advisory. Our bookkeeping team separates client media from agency revenue and keeps the freelancer file ready for January's 1099s. See pricing or book a free fit call.