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BUSINESS FINANCE

Ecommerce finance: funding inventory, ad spend and shipping

An online retailer pays for stock, freight and advertising well before the revenue arrives, and the faster it grows the wider that gap becomes. Ecommerce finance is about funding a cash conversion cycle, not about buying assets.

Paul Raymond · Contributor·19 November 2026·3 min read

Ecommerce finance funds the working capital cycle of an online retail business: buying inventory, paying freight and duties, and spending on advertising, all of which happen before the customer buys anything. Unlike most business lending, it is rarely about acquiring assets. It is about bridging the months between money going out and money coming back.

Why growth makes it worse

The cycle runs in a fixed order. You order stock and pay a deposit. You pay the balance on shipment. The goods spend weeks in transit. They arrive, clear customs and reach a warehouse. You spend on advertising to sell them. Customers buy, and the payment processor holds funds for a settlement period before releasing them.

From first deposit to cash in your account can be months. Every dollar of growth requires that cycle to be funded again at a larger size, earlier. This is why profitable online retailers routinely run out of cash: the business is working, and the working is what consumes the capital.

The first step is measuring the cycle honestly in days rather than assuming it. What is working capital covers how, and cash flow forecasting for small business covers how to keep it in front of you weekly.

Funding the inventory

Inventory is the largest and most fundable part of the cycle. Trade or import facilities pay the supplier and give you a period before repayment, ideally aligned to how long the stock takes to sell.

Where you are importing from unfamiliar suppliers, the payment mechanism is a separate question from the funding. Import finance vs letter of credit covers the difference, which matters more for ecommerce than for most sectors because so much of the supply chain is offshore.

Match the facility term to the actual sell-through of the stock it funds, not to an average across the catalogue. Fast-moving lines and slow-moving lines have very different funding requirements, and a single blended term overfunds one and underfunds the other.

Funding the advertising

Advertising is the part traditional lenders struggle with most, because there is no asset and no receivable, only a marketing spend with an expected return. Facilities that fund it exist, and they are generally assessed on the observable relationship between spend and revenue in your own data.

Revenue-based facilities are the common structure: an advance repaid as a percentage of daily or weekly sales, so repayment scales with performance. This suits ecommerce better than fixed instalments because it tracks the underlying volatility of online trading.

The same caution applies as in any revenue-share product. Understand the total repayable rather than the headline rate, know what the split does to your margin, and avoid stacking one facility on another. Merchant cash advance covers the structure and its failure modes in more detail.

Funding wholesale receivables

Many online retailers also sell wholesale, into stockists, marketplaces or larger retailers, on thirty to sixty day terms. That portion of the business has ordinary trade receivables and is funded most cheaply with invoice finance, which is materially cheaper than a revenue-based advance.

Businesses running both channels should fund them differently rather than putting the whole business on one expensive facility. The wholesale side supports cheaper funding; using it well subsidises the direct side.

What lenders look at

Platform and processor data, usually connected directly rather than supplied as statements. Revenue history and its consistency. Gross margin, because a thin-margin business cannot absorb the cost of the facilities available to it. Return rates, which in some categories are high enough to change the economics entirely. Customer acquisition cost against contribution margin. And inventory turnover by line rather than in aggregate.

Concentration risk matters too. A business whose revenue depends on a single platform, a single marketplace or a single advertising channel carries a risk that a policy change could remove most of its revenue without notice, and lenders price that.

The trap worth naming

Funding advertising with expensive capital to drive growth that requires more inventory, funded with more expensive capital, is a pattern that ends badly at scale. The discipline is to know the contribution margin per order and the cash conversion cycle in days, and to only accelerate when the first comfortably covers the cost of funding the second.

Where to from here

We arrange inventory, trade and working capital funding for online retailers across our whole lender panel, and we will tell you when a cheaper structure is available for part of your business. Our ecommerce and online pages cover the sector in full. There are no fees to clients; the lender pays us when the finance settles. Book a 20-minute brief.

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