“Björn Ulvaeus now reveals the reason for the outfits was the Swedish tax code. Newly published Abba: The Official Photo Book, says their expensive outfits were tax deductible only if they were so outrageous they couldn’t be worn on the street. U.S. tax law is similar […]” — US tax lawyer Robert W. Wood on why members of ABBA wore the outrageous things they did and … answers the question of whether you can write off your clothing expenses.