On November 4, 2014, voters in Shawnee approved two sales tax initiatives in regards to funding future City infrastructure projects. Voters approved a renewal of "Parks and Pipes", a 1/8 cent citywide sales tax that is specifically designated for building and improving City parks and trails as well as improvements to the stormwater drainage system. On the same ballot, voters also approved a new 10-year, 3/8 cent sales tax that will be specifically used for maintenance and improvements to City streets, curbs, and sidewalks.

The new 10-year renewal period for "Parks and Pipes" began on January 1, 2016 and will end on December 31, 2025. 

The pavement sales tax (.375%) went into effect on April 1, 2015 and will end on March 31, 2025.

* The sales tax rate is higher at Ten Quivira Plaza Shopping Center at Shawnee Mission Parkway and Quivira (additional .5 percent) because a Community Improvement District is in effect. 

* The sales tax rate is higher at Shawnee Plaza Shopping Center at Shawnee Mission Parkway and Pflumm (additional 1.0 percent) because a Transportation Development District is in effect.

On November 8, 2016 voters in Johnson County approved a ¼ cent, 10 year public safety sales tax to fund a new Johnson County courthouse and coroner facility. The new sales tax went into effect April 1, 2017 and sunset on March 31, 2027. On April 1, 2017 the total state and local sales tax rate in Shawnee increased from 9.35% to 9.6%.