A vote was scheduled in both counties for February 13, 2007 where it was approved, 58% to 42% in Linn County and 67% to 33% in Johnson County. The tax for both counties went into effect on July 1, 2007 for a period of 10 years, making it a statewide tax. Iowa currently has a 6% state sales tax rate in addition to the 1% SILO tax and any other Local Option Sales Taxes (LOST) which may be in effect in each county, often an additional 1%.
A ballot was set to be held on February 13, 2007, in both counties, which received approval, 58% to 42% in Linn County and 67% to 33% in Johnson County. The tax rates took effect on July 1, 2007, for a 10-year duration, becoming a statewide tax. Iowa's sales tax rate currently includes a 6% state rate plus the 1% SILO tax, along with any additional Local Option Sales Taxes (LOST) that may be in place.