What Happens When Everything at IKEA Increases 20%?

From Marginal Revolution:

"The non-deductibility of imports is simply crazy. It will immediately increase inflation. Take IKEA, for example, they cannot source locally, they will increase prices immediately by 20%, or whatever the tax will be. At all effects, it is a flat tariff of 20% on every import. This guy seems to want to transform the US into North Korea. And think about the distortions: Boeing will become a purchasing company, making more money using the tax-credit to buy prosciutto and Camembert to sell to retailers at prices lower than the marginal cost, than producing planes."