Tariff Risk Moves to the Deal Table: How Buyers Now Price Trade Exposure

In the span of two weeks, Washington imposed new tariffs on imports from 60 trading partners and revived a 1930 trade statute that no president had used before. For business owners weighing a sale, and for the buyers pricing one, tariff exposure has moved from background noise to a standing workstream in due diligence, sitting alongside quality of earnings and legal review.

Two Tariff Actions in Two Weeks

On July 23, the United States Trade Representative issued its final action in a set of Section 301 investigations focused on forced labor in global supply chains. Section 301 is the trade law that lets the government impose duties in response to practices it finds unfair or actionable. The result is an additional 10 or 12.5 percent duty on imports from 60 economies, including China, India, Canada, Vietnam, the United Kingdom, and the European Union, effective July 24. The process moved quickly by trade standards: the investigations opened on March 12 and reached final action in a little over four months. After public comment, the government exempted 471 tariff subheadings covering raw materials and goods that cannot be sourced domestically in sufficient quantity, and goods that enter duty-free under the USMCA trade agreement remain outside the new duties.

Three days earlier, on July 20, the White House issued three proclamations under Section 338 of the Tariff Act of 1930, a provision that had sat unused for nearly a century. The proclamations impose a 50 percent tariff on roughly 20 billion dollars of imports from Canada, about 5 percent of everything the United States buys from its northern neighbor, effective August 19. The covered list runs from motor vehicles, dairy, and alcoholic beverages to cement, plywood, and furniture. Two details matter for planning. First, the proclamations contain no carve-out for goods that otherwise qualify for preferential treatment under the USMCA. Second, unlike many recent tariff actions, these carry no expiration date.

The particulars will keep changing, and that is the point. A private company sale typically runs six to nine months from engagement to closing. Tariff schedules have now changed materially several times inside that window, which means a buyer cannot underwrite a target's cost structure by looking at last year's income statement. They underwrite the company's ability to absorb, avoid, or pass through whatever comes next.

What Trade Diligence Now Looks Like

A year ago, tariff questions surfaced late in diligence, if at all, usually as a subset of legal review. Today they arrive in the first data request, and they are specific. Buyers and their advisors now routinely ask for supply chain maps traced to country of origin, not just to the immediate vendor. A company that buys components from a domestic distributor may still carry heavy tariff exposure if those components originate in a tariffed jurisdiction, and buyers have learned to trace the chain at least two tiers deep.

Classification comes next. Every imported product carries a code under the Harmonized Tariff Schedule, the catalog that determines the duty rate. Misclassification is common, and it cuts both ways: a company may be overpaying duties on correctly sourced goods, or underpaying on goods a customs audit would recode. Buyers now test classifications and review customs compliance history the way they have long tested revenue recognition. An underpayment history becomes a liability the buyer will price, escrow, or walk away from.

The third focus is pass-through. Diligence teams build tariff pass-through models to answer a simple question: when input costs rise, does this company reprice, and do its customers stay? A target that raised prices twice in the past 18 months and kept its volume has demonstrated pricing power. A target that absorbed cost increases to protect volume has quietly converted a tariff problem into a margin problem, and the quality of earnings analysis will treat it that way.

Where Tariff Exposure Shows Up in Price and Terms

The valuation effect is no longer theoretical. Companies with diversified supplier networks are commanding premiums, while companies concentrated in high-tariff jurisdictions face discounts, in some cases regardless of current profitability. The logic is the same one behind customer concentration discounts: the buyer is pricing fragility, not history.

Deal terms are adjusting alongside price. Material adverse effect clauses, the provisions that define when a buyer can walk away between signing and closing, are being negotiated with tariff-specific language, since a general economic carve-out may or may not capture a targeted proclamation. Representations and warranties now commonly include customs compliance and country-of-origin accuracy. Earnouts tied to post-closing margins shift tariff risk onto the seller, which is worth understanding before agreeing to one. And inventory cost basis has become a live issue in working capital adjustments, because goods purchased before a tariff took effect carry a different cost than identical goods purchased after.

Preparing a Company for Sale in a Tariff Market

Sellers who treat trade exposure as a disclosure item to be managed late in the process tend to fund the resulting uncertainty through escrows and price reductions. Sellers who arrive with the analysis already done keep control of the narrative. The preparation work is concrete.

What to Watch Next

Three developments deserve attention through the fall. First, Section 338 has no sunset and no stated limit to Canada, so the question is whether the administration extends the tool to other trading partners. Second, the forced-labor tariff exemption list has already grown once through public comment, and companies with concentrated exposure should watch whether their inputs are added or removed. Third, a statute invoked for the first time in nearly a century will inevitably face questions about its legal limits, but buyers are not waiting for courts to resolve them, and sellers should not plan around the assumption that any of this reverses on a convenient schedule.