WISCONSIN (CBS58) -- Mayors and village presidents across the state are calling today "Dark Store Day." They want big box retailers to pay their share of property taxes. 

The Dark Store strategy is a tax loophole being used by Big Box retailers and other national chains to lower the amount they pay in property taxes, according to the League of Wisconsin Municipalities. The big retailers get their property value assessed as if it were closed or abandoned, which lowers property taxes. 

There are two pieces of legislation in Madison. The group of mayors want legislators to vote on both bills in January. These bills are Senate Bill 291 and Senate Bill 292.

Information on event:

• Where: Wauwatosa City Library
• Who: Mayors and Village presidents
• 1 p.m.