A simple rule of thumb, a waterfall cost model, and the two strategies that matter most for sellers navigating today's US market conditions.
Here's a quick rule of thumb for sellers evaluating whether a product is viable for the US market: if your factory cost is roughly $1.40 USD, your US retail price needs to reach somewhere between $9.50 and $14 to meaningfully reduce profit and cash flow risk. That ratio — approximately 7–10x factory cost to retail price — is the threshold below which the economics become very difficult to sustain.
This benchmark is grounded in the trade conditions of Q4 2025: the combined effect of the US-China tariff environment on exchange rates, import duties, market purchasing power, and logistics costs. It's a starting point for a conversation, not a guarantee — but it's a directionally useful filter before you run the full numbers.
💡 The rule of thumb: Factory cost × 7–10 = minimum viable US retail price. Below this threshold, the margin structure leaves very little room for the cost pressures that are structurally increasing — tariffs, freight, and platform fees.
The chart below is based on a real cost analysis conducted for a home furnishings seller. It shows how a $100 retail price gets consumed layer by layer from factory gate to gross profit — what we call a cost waterfall. The figures are illustrative and specific to that seller's supply chain profile; your numbers will differ. Read it for the logic, not as a template.
All figures are illustrative and based on a specific seller's cost profile. Actual costs vary significantly by product, channel, and supply chain structure.
Walking through the layers from left to right:
Selling fees are often underestimated because they're quoted as a percentage of revenue rather than a fixed dollar amount. At scale, the difference between channels is enormous:
None of these figures include paid marketing spend, which is an additional and often substantial cost for brands building awareness in a new market.
The waterfall above captures per-unit variable costs. What it doesn't capture — and what catches many sellers off guard — are the structural costs that sit behind the unit economics:
Almost every cost in the stack improves with volume: freight rates, warehouse terms, platform fee tiers, and tariff optimization mechanisms. The unit economics at 500 units look very different from those at 50,000.
Product development, photography, listing setup, compliance certifications, initial inventory, and brand registration — all paid before a single unit sells.
Customer service, bookkeeping, compliance management, and supply chain coordination. These costs are often invisible until the business reaches a scale where they can no longer be absorbed by the founders.
Inventory must be paid for weeks or months before it generates revenue. At 7.5 months of supply (a common result of suboptimal warehouse placement), the cash tied up in stock can exceed the annual gross profit.
💡 The unit economics only tell part of the story. A product that looks viable at the per-unit level can still destroy cash flow if the inventory cycle, upfront investment, and operating overhead aren't modeled alongside it.
Improving profitability requires working both sides of the equation simultaneously. Here's how we think about each:
The instinctive response to margin pressure is to squeeze suppliers and logistics providers for lower prices. This works briefly, then reliably backfires: factories under-invest in quality or delay shipments, and logistics providers find workarounds that create compliance risk. The cost reduction is real; so is the downstream damage.
More durable approaches:
Smaller, more frequent orders reduce inventory carrying costs and the cash tied up in stock. Combined with better warehouse placement, this can reduce months of supply from 7+ to under 5 — freeing significant working capital without touching the supply side at all.
Avoid locking into fixed warehouse commitments, long-term contracts, or large MOQs until the demand signal is clear. The cost of flexibility is real; so is the cost of being stuck with inventory, capacity, or terms that no longer fit.
Export rebates, first-sale tariff valuation, and FCL consolidation can collectively reduce supply-side costs by up to 48% compared to an unoptimized baseline — without touching factory pricing at all. These are structural improvements, not one-time negotiations.
Cost reduction has a floor; revenue growth does not. Two approaches that are consistently underexploited by sellers coming from Asia to the US:
Products that are already commoditized in Asia are often still novel in the US. A product ranking in the top three on a major Asian e-commerce platform might still be unknown to 90% of American consumers. The information gap between markets is substantial — and it's a real competitive advantage for sellers willing to do the sourcing work to identify it. Everyday items that are taken for granted in Asia are frequently discovered as exciting new finds in the US.
The US is a highly diverse market. The same product, lightly customized for a specific community or lifestyle group, can command a meaningfully higher price point than a generic equivalent. Certain cultural groups, hobby communities, and lifestyle segments have strong purchasing preferences that remain systematically underserved — representing real pricing power for sellers who take the time to understand them.
Competing purely on price is a race that gets harder every year. Freight costs rise. Tariffs increase. Platform fees expand. The sellers who build durable US businesses are the ones who invest in understanding their customers — not just their costs — and find product and pricing strategies that create genuine value rather than simply undercutting the next listing.
The 7–10x rule of thumb is a filter, not a formula. Use it to quickly eliminate products that can't work under any realistic scenario. For the ones that pass, the real work is building a supply chain, a margin structure, and a go-to-market approach that can sustain the business as the market continues to evolve.