CBP collected over $305 billion in tariffs, taxes, and fees over the past year — and issued more than 2,218 trade penalties along the way. Behind those numbers is a real shift worth understanding: multiple compliance advisories and CBP's own enforcement descriptions point to a growing role for AI-powered data analytics in identifying specific, identifiable patterns in your entries — and one of the clearest patterns it's built to catch is exactly the kind of mistake a confused tariff-stacking situation can create.
The case that shows exactly how this works
In one of its own enforcement releases, CBP cited a real example: an importer of iron, steel, and aluminum who claimed both a Section 232 exemption and a Reciprocal Tariff exemption on the same goods — a double claim that deprived the government of roughly $100 million. This isn't a hypothetical. It's the kind of pattern data analytics is specifically built to catch, and it's directly related to the stacking confusion we've written about before: certain tariff authorities are mutually exclusive with Section 232 while others stack on top of it — getting that distinction wrong, and claiming relief under two authorities that don't both legitimately apply, is a much more serious problem than a stacking miscalculation. It looks like exactly what it often is: double-dipping.
If your compliance process doesn't clearly document why you claimed a specific exemption and confirm you haven't also claimed a conflicting one elsewhere, this is a real, current audit trigger — not a remote one.
What's actually different about 2026 enforcement
Several trade compliance advisories point to CBP's Automated Commercial Environment (ACE) portal modernization as a driver of stronger data analytics capabilities. According to CBP's own description of its enforcement process, the agency actively uses these tools to identify patterns including undervaluation, misclassification, transshipment, AD/CVD violations, shell company structures, and exemption double-dipping.
This matters for how you should think about audit risk: it's less about "will CBP happen to select me" and more about "does my data contain a pattern their tools are specifically built to flag."
The other major trigger: UFLPA's reversed burden of proof
Separate from the AI-targeting trend, the Uyghur Forced Labor Prevention Act (UFLPA) works differently from traditional customs enforcement in a way that catches importers off guard: you have to prove your goods are free from forced labor, not wait for CBP to prove they aren't. This reversed burden means incomplete supply chain documentation can trigger a detention even without CBP suspecting anything specific — the absence of proof is itself the trigger.
Related-party transactions: a newer, more technical risk
If you import from a related supplier — a parent company, affiliate, or subsidiary — your customs valuation is being scrutinized separately from whatever transfer pricing documentation you already maintain for tax purposes. These are genuinely different standards: a transfer price that satisfies your tax authority doesn't automatically satisfy CBP's customs valuation requirements. This is a specific, growing area of AI-targeting risk for anyone in a related-party supply chain.
What this means for your actual compliance process
- Document your exemption logic, not just your exemption claim. If you're claiming relief under any tariff authority, keep a clear record of why that specific authority applies and confirm you haven't also claimed a conflicting exemption elsewhere on the same goods.
- If you're navigating a stacking situation (multiple potentially-applicable tariff authorities on the same product), treat getting it right as an audit-risk issue, not just a cost-calculation issue. Our stacking guide covers the current rules — but when genuine ambiguity exists, that's exactly when documentation matters most.
- If you source from a related party, confirm your customs valuation methodology separately from your tax transfer pricing — don't assume one satisfies the other.
- If UFLPA could plausibly touch your supply chain, proactive documentation matters more than waiting to see if you're flagged, given the reversed burden of proof.
This reflects CBP's own published enforcement data and statements, current as of August 2026 — not legal or customs advice. Confirm your specific compliance posture with a licensed customs broker or trade counsel; the enforcement case referenced here illustrates a real pattern, not a prediction about any individual importer's risk.