Combined rates for states with non-zero sales taxes range from a 1.70 percent low in Alaska and 4.35 percent in Hawaii to a high of 9.45 percent in Tennessee and 9.26 percent in Arkansas, according to the Tax Foundation. These include local taxes as a weighted averaged of municipalities' rates.
Other states with high combined sales tax rates in 2015 include Alabama and Louisiana at 8.91 percent as well as Washington at 8.89 percent, according to the Tax Foundation. Other states with low combined rates include Wisconsin (5.43 percent), Wyoming (5.47 percent) and Maine (5.50 percent). A total of 45 states charge state-level sales taxes, with 38 allowing local sales to be collected as of April 2015.
At the state-only level, there are no sales taxes in Alaska, Delaware, Montana, New Hampshire and Oregon, with Delaware, New Hampshire and Oregon also banning the imposition of any local sales taxes, according to the Tax Foundation. Without including local rates, California has the highest state sales tax (7.5 percent) followed up by Indiana, Mississippi, New Jersey, Rhode Island and Tennessee (all at 7 percent). The lowest local sales tax rate excluding zero-rate areas is 0.01 percent in Idaho. Other notable combined rates include 8.48 percent in New York and 8.05 percent in Texas, as well as 5.75 percent in the District of Columbia.