Pass-Through Ad Spend and Gross vs. Net Revenue at a Marketing Agency
Two agencies can report very different revenue and still keep roughly the same amount for their own work. The difference is often pass-through ad spend: media an agency buys on advertising platforms on behalf of its clients and then bills back. Depending on how an agency invoices and records that spend, its top line may reflect total billings or only the fees it earns. Buyers and lenders look past the headline figure to understand what the agency actually keeps.
This article explains in general terms how buyers may look at billings compared with agency revenue when evaluating an existing, operating digital marketing agency. How revenue should be recognized and presented is an accounting question; buyers and sellers should work with qualified accountants. Nothing here is accounting, tax or legal advice.
How Media Can Flow Through an Agency
- Client pays the platform directly: the client’s own payment method funds the advertising account, and the agency bills only its management fee
- Agency pays and rebills: the agency pays the platform and invoices the client for the media plus its fees
- Fee based on spend: the agency’s fee is calculated as a share of the spend it manages
- Bundled pricing: media and services billed together as one package
The same economic activity can appear very differently on the financial statements depending on which arrangement applies and how the accountant presents it.
Why Buyers Focus on Agency Revenue
Pass-through spend is largely paid out to advertising platforms or other vendors, so it does not represent value the agency creates. Buyers frequently look at revenue after pass-through costs, sometimes called net revenue or agency revenue, and measure profitability against that figure. Comparing agencies on total billings can make one appear larger and less profitable than it really is, or obscure how much of the business is the agency’s own work. Our guide to digital marketing agency valuation explains how this fits into value.
Other Pass-Through Costs
Media is not the only cost an agency may pass through. White-label fulfillment, outside production, stock assets, printing and certain software tools may be rebilled to clients. Buyers should understand which costs are passed through and whether they are marked up. See our article on marketing agency contractors.
Cash Flow and Credit Risk
When an agency pays for media before collecting from clients, it effectively extends credit. A client that pays late, disputes charges or fails can leave the agency owing the platform. Buyers should review how media is funded, payment terms with clients, receivables aging and any history of uncollected media. These timing gaps can also affect how much working capital the business needs; see our page on digital marketing agency working capital.
Questions to Ask in Due Diligence
- Which clients’ media runs through the agency and which clients pay platforms directly
- How media and fees are invoiced, and whether invoices show them separately
- How the financial statements present media, and whether that has changed over time
- Whether any client credits, rebates or unused prepaid balances are owed
- Receivables aging, with media balances identified
Our digital marketing agency due diligence checklist covers the broader review.
How Lenders Look at It
Lenders base decisions on documented cash flow, and they may ask for revenue reconciled between billings and agency revenue, receivables detail and an explanation of how media is funded. Clear presentation can make the review smoother. Our article on marketing agency loan requirements covers the documents lenders frequently request.
US Professional Funding helps buyers finance the acquisition of existing, operating digital marketing agencies, with financing evaluated on documented cash flow. Learn more about our digital marketing agency acquisition financing.
