Single-Warehouse Thinking Is Quietly Wrecking European Brands' US Margins

Ask a European brand why they picked their US fulfillment partner and you'll almost always hear the same answer: proximity to a port, a reasonable price per pallet, and a sales rep who returned emails quickly. Six months later, the same brand is quietly eating 4-day ground shipping costs to reach the West Coast, paying storage fees on inventory that should have moved faster, and wondering why their US unit economics don't look anything like the spreadsheet they built before launch. This is not a fulfillment problem. It's a partner-selection problem, and in 2026 it has become far more expensive to get wrong.

The market conditions that used to make single-warehouse setups tolerable have shifted. Between the EU-US 15% tariff framework that went live on July 1 and the suspension of the de minimis exemption earlier this year, European brands are now recalculating landed costs almost shipment by shipment. Layer in Amazon's newly confirmed peak-season fees running October 15 through January 14, and the margin for error on fulfillment strategy has essentially disappeared. Choosing the wrong partner — or the wrong structure — doesn't just cost you convenience anymore. It costs you the deal.

The Single-Warehouse Trap

Most European brands entering the US default to a single fulfillment center, usually somewhere near a major port like Los Angeles, Savannah, or New York/New Jersey. It feels logical: one location, one contract, one point of contact. But the US is not a single market — it's a continent-sized country where ground shipping from coast to coast can take 4-5 days and cost significantly more than a 1-2 day zone.

The result is predictable. Brands either eat the cost of slower, cheaper shipping and lose to competitors offering 2-day delivery, or they eat the cost of expedited shipping and quietly erode their margin on every West Coast order. Neither option shows up clearly in a landed-cost model built before launch — it shows up three months later in a P&L that doesn't reconcile.

What Changed in 2026 That Makes This Worse

Two developments this year have made single-node fulfillment strategies actively dangerous rather than just suboptimal.

First, the suspension of the de minimis exemption means every shipment into the US now carries brokerage costs — typically $25 to $75 per shipment — on top of the applicable HTS duty rate and, for many goods, the 10% Section 122 global surcharge. For a brand shipping small, frequent parcels directly from Europe, those fixed brokerage costs frequently exceed the duty itself. That's pushing more brands toward larger, consolidated shipments held in US warehouses rather than parcel-by-parcel imports — which only works well if your warehousing strategy is actually built for distribution, not just storage.

Second, the EU-US 15% tariff deal that took effect July 1 changed the baseline math for nearly every category of EU-origin goods. If your landed-cost model was built before that date, it's stale. Combine a stale tariff assumption with a fulfillment network that adds unnecessary transit cost and time, and you get a P&L that looks fine on paper and loses money in practice.

Add Amazon's confirmed peak-season fee window from October 15 to January 14, and brands relying heavily on FBA as their US entry point are now facing a genuine double squeeze: rising customs complexity on the inbound side, rising fulfillment fees on the outbound side. A single-warehouse, single-channel strategy has almost no flexibility to absorb either pressure.

The Diligence Checklist Most Brands Skip

Before signing with any US fulfillment partner, European brands should be asking questions that go well beyond price per pallet:

• Network coverage, not just location. Can this partner get you to 1-2 day ground coverage across at least 90% of US population zones, or are you locked into one region?
• Carrier diversity. Are you dependent on a single carrier relationship, or does the partner have leverage across multiple carriers to reroute around delays, rate hikes, or capacity crunches?
• Customs and brokerage integration. Does the partner handle import, customs, and duty calculation as part of the same system, or is that a separate vendor you have to coordinate manually — and pay for twice?
• Returns infrastructure. Cross-border returns are often the single biggest hidden cost in US expansion. Does the partner have a real reverse logistics process, or does every return ship back to Europe?
• Excess inventory handling. What happens to stock that doesn't sell at full price? Does the contract include a path to liquidate or resell excess inventory, or does it sit accruing storage fees indefinitely?
• Contract flexibility. Can you scale up during Q4 and scale down in January without renegotiating from scratch, or are you locked into fixed capacity commitments regardless of demand?

Most European brands sign their first US fulfillment contract based on the first three items on this list, if that. The last three are where margin quietly disappears.

How SPS Solves the Fulfillment Partner Problem

SPS Fulfillment isn't a warehouse operator asking you to bet everything on one building in one zip code. As an Agentic 4PL, we don't own the assets — we own the network, and we orchestrate the warehousing, freight, and carrier operators best suited to your specific product, volume, and seasonality. That's the difference between hiring a single operator and having an intelligence layer that continuously optimizes across all of them.

Because we're not tied to one facility, we route inventory across our warehousing network to hit US delivery zones efficiently rather than accepting whatever transit time a single location happens to offer. Our customs and import operations are built into the same system as warehousing and fulfillment, so duty calculations under the current 15% EU-US framework and Section 122 surcharge are handled as part of one workflow — not reconciled after the fact across three vendors' invoices. And through our ManyCo partnership, excess inventory that would otherwise sit accruing storage fees gets converted into recommerce revenue at zero added effort on your side.

This is what we mean by a self-healing supply chain: when a carrier rate spikes, a warehouse hits capacity, or customs rules shift again — and in 2026, they will — the network adjusts automatically instead of leaving you to renegotiate five separate contracts under pressure. Brands working with 150+ operators through SPS have moved over 30,000 packages without having to become logistics experts themselves. That's the point.

Frequently Asked Questions

How many US warehouses does a European brand actually need to start?

Most brands don't need five warehouses on day one, but they do need a partner capable of adding nodes as volume grows without a full contract renegotiation. Starting with one strategically located facility is fine — being locked into only one facility long-term is the mistake.

Does consolidating shipments to avoid de minimis brokerage costs require a different warehouse setup?

Yes. Moving from frequent small parcel imports to larger, consolidated shipments means you need warehousing that can receive, break down, and redistribute inventory efficiently — not just store pallets. This is exactly the kind of operational shift the de minimis suspension has forced on price-sensitive categories like fashion and home goods.

Should we still rely primarily on Amazon FBA for US fulfillment?

Amazon remains a valid channel, but with confirmed peak-season fees running October 15 through January 14, 2027, relying on it exclusively removes your flexibility to route around cost spikes. A network-based fulfillment strategy lets you use Amazon selectively rather than as your only option.

How quickly can a fulfillment partner adapt to tariff changes like the July 1 EU-US deal?

It depends entirely on whether customs and duty calculation are built into the same system as your warehousing and fulfillment operations. If they're siloed across separate vendors, expect weeks of reconciliation. Integrated systems can reflect new tariff assumptions almost immediately.

If your US fulfillment strategy still depends on a single warehouse and a static landed-cost spreadsheet from before July 1, it's already out of date. Talk to SPS Fulfillment at spsfulfillment.com and see what an orchestrated, self-healing network can do for your US margins.