The Lawrence, Kansas sales tax is 9.05%, consisting of 6.50% Kansas state sales tax and 2.55% Lawrence local sales taxes.The local sales tax consists of a 1.00% county sales tax and a 1.55% city sales tax. The Lawrence Sales Tax is collected by the merchant on all qualifying sales made within Lawrence; Lawrence collects a 2.55% local sales tax, the maximum local sales tax allowed under Kansas law; Lawrence has a higher sales tax than 83.5% of Kansas' other cities and counties; Lawrence ...