Clyde operates a sole proprietorship using the cash method. This year Clyde made the following expenditures: $480 to U.S. Bank for 12 months of interest accruing on a business loan from September 1 of this year through August 31 of next year even though only $160 of interest accrued this year. $600 for 12 months of property insurance beginning on July 1 of this year. What is the maximum amount Clyde can deduct this year?