Moving manufacturing from China to Vietnam? US tariffs and transshipment rules are shifting in 2026. Here's how to transfer production safely and legally.
Last updated: July 2026
Written for: procurement and operations leaders at established product companies already manufacturing in China, who are now under pressure — from tariffs, from the board, from a customer asking about country of origin — to evaluate whether some or all of that production should move to Vietnam.
You're not deciding whether to manufacture overseas for the first time. You already have supplier relationships, a working QC process, and a landed cost you understand. What you need isn't an introduction to sourcing in Asia — it's a clear-eyed answer to one specific question: can we move this product to Vietnam in a way that actually reduces our tariff exposure, or would we just be creating a compliance problem that costs more than staying in China?
This guide is built around that question. It covers where tariff policy actually stands right now, a practical way to self-assess whether a proposed Vietnam transfer is legitimate or a transshipment risk, and the documentation you'd need to defend it if customs ever asks.
A note before we start: any specific tariff percentage in this piece is a snapshot as of publication, not a permanent fact. The legal basis for US tariffs on Chinese and Vietnamese goods has changed multiple times in 2026 alone, and it will likely change again. Treat the numbers here as context for the decision, not as the decision itself.
The tariffs introduced in 2025 under IEEPA (the International Emergency Economic Powers Act) were struck down by the Supreme Court in February 2026, which held that IEEPA doesn't authorise tariffs at all. Since then, the US has been rebuilding tariff policy through a different set of legal tools — primarily Section 122, Section 301, and Section 232 — rather than the single sweeping authority used before.
As of late July 2026, the practical result looks roughly like this:
None of this is stable ground to build a permanent sourcing decision on — which is exactly why the smarter question isn't "what's the rate today," it's "how do I build a supply chain that holds up regardless of which way the rate moves next."
Here's what a lot of companies get wrong when they hear "move production to Vietnam": they assume shipping the same Chinese-made product through a Vietnamese warehouse, relabelling it, and exporting it from there is enough. It isn't — and US Customs and Border Protection has been increasing enforcement specifically on this pattern.
The legal concept here is called transshipment. Under federal customs regulation, a product only qualifies as genuinely originating from Vietnam if it undergoes a "substantial transformation" there — emerging with a new name, character, or use. Simple repackaging, relabelling, or minor final assembly doesn't meet that bar. Goods that are essentially finished in China and merely routed through Vietnam to obscure their real origin can face a penalty tariff of around 40%, on top of the underlying rate. That's a considerably worse outcome than staying in China in the first place.
There's no single universal test — the real answer depends on your specific bill of materials — but these are the signals procurement and compliance teams generally look at first:
Signs a transfer is likely legitimate:
Red flags that point toward transshipment risk:
If your situation looks closer to the second list, moving forward without changing the underlying process is a real financial risk, not a grey area to hope goes unnoticed — CBP enforcement in this specific area has been increasing.
If your process genuinely qualifies, you'll want this on file before you need it, not after a customs inquiry:
If a factory or agent can't help you assemble this kind of documentation, that's itself a signal worth taking seriously.
The businesses that move production successfully aren't the ones chasing the lowest headline tariff rate — they're the ones building a genuine, verifiable production process in the new location, with the documentation above in place from day one, not assembled retroactively when a shipment gets flagged.
That's how Sourcing Allies manages the entire manufacturing process for every project — factory selection, tooling, component sourcing, assembly, and quality control, all documented and verifiable, whether the production base is China, Vietnam, or a combination of both.
Sourcing Allies has been managing manufacturing programmes in China since 2006, with local offices and manufacturing capability in Vietnam as well. That matters here specifically because the right answer for your product — stay in China, move fully to Vietnam, or split production across both — depends on your product, your margins, and your timeline. A partner working in only one of those two markets can't give you an honest comparison. A partner working in both can, and can help you build the audit trail that makes a transfer defensible, not just cheaper on paper.
If you're weighing a move, the conversation to have isn't "what's the current tariff rate" — it's "does my product genuinely qualify for a legitimate transfer, and what would we need in place to prove it." Book a sourcing discussion and we'll walk through your specific situation.
It depends on the product category and has changed multiple times in 2026 as legal challenges and trade negotiations continue. Rather than quote a number here that may be outdated by the time you read this, we'd rather walk through your specific product and HS classification directly — book a sourcing discussion for a current read.
Transshipment is routing a product through a third country — commonly Vietnam — with minimal processing, in order to have it treated as originating from that country rather than China. US Customs and Border Protection has increased enforcement against this practice, and goods found to be transshipped can face a penalty tariff of around 40% on top of the underlying rate.
No. Vietnam carries its own tariff structure — currently an effective baseline in the region of 10% under Section 122, with a Section 301 replacement being finalised. Moving production genuinely to Vietnam can reduce your exposure compared to China-specific tariffs and avoids the transshipment penalty, but it doesn't mean tariff-free manufacturing.
Look at how much of the real manufacturing — component sourcing, fabrication, assembly — genuinely happens in Vietnam versus arriving pre-made from China. If your Vietnam facility is doing real production work and can document it, that's a good sign. If it's mainly repackaging finished goods, that's a red flag. There's no single universal test, so this is worth reviewing against your specific bill of materials with a manufacturing partner who can help you build the documentation to support it.
At minimum: a component-level bill of materials showing country of origin for each part, supplier invoices for materials sourced into Vietnam, production records from the Vietnam facility, in-process quality inspection reports, and a certificate of origin. Put this together before you need it, not after a shipment gets flagged.
Yes. Sourcing Allies has managed manufacturing programmes in China since 2006 and has local offices and manufacturing capability in Vietnam as well. We can assess whether your product is a genuine fit for a Vietnam transfer, a continued China production run, or a split between the two, based on your specific product, volume, and timeline. Book a sourcing discussion to start that conversation.
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