President Trump’s approach to setting tariff rates is causing anxiety in the business community, with the trickling flow of letters to trad​e partners exacerbating concerns over hits to the economy.

The president has sent two dozen letters to countries, with rates set between 20 percent and 50 percent to be imposed Aug. 1, while also leaving the door open to negotiations to lower those rates with trading partners such as the European Union.

That's left the corporate world bracing for what next month could bring.

“People have built in that there will be some inflationary impact with tariffs at some point — not all of them can be absorbed by manufacturers and things like that. But the problem becomes now you’re compounding that with this herky-jerky thing that creates instability,” said a GOP lobbyist who asked to remain anonymous to speak freely.

For example, Trump on July 7 had imposed a 32 percent tariff on Indonesia, sending out a letter on Truth Social. He then said Tuesday that he had struck a deal to lower the rate to 19 percent and give the U.S. full access to Indonesia, which is a top copper producer.

He also this week said Europe may come to the table to try to lower the 30 percent that it's been hit with, suggesting other trading partners could do the same.

“No, we’re going to be talking to people,” the president said. “The deals are already made — the letters are the deals. The deals are made, there are no deals to make. They would like to do a different kind of a deal. ... We are open to talk, including to Europe.”