Yes, I think that's the starting point. Another part of my question was whether a CPA applying GAAP would recommend recognizing the $2 as other income, or else as a liability against a future claim from the customer who bought the widget and is now seeking a partial refund.

I did what passes for research these days and concluded that if the claim is "probable and estimable," then it could be recorded as a "contingent liability" rather than other income. Relevant facts would include whether the tariff refund included a pass-through refund mandate (unlikely with this administration), or whether class actions for refunds against merchants were pending (inevitable).