Tuesday is an important day in Wareham. That’s when voters will get to decide whether the town should raise property taxes through an override of Proposition 2½. According to the town clerk’s office, there will be only one question on the ballot: “Shall the town of Wareham be allowed to assess an additional $4.5 million in real estate and personal property taxes for the purposes of funding town and school operating expenses and capital expenses for the fiscal year beginning July 1, 2014?” Enacted in 1980, Proposition 2½ is the state law that limits the amount of revenue a town can raise from property taxes each year to fund municipal operations. If the override is successful, a resident who owns a $230,000 home would see his or her annual property tax bill go up by approximately $329. A group called Invest In Wareham is working to get the override question approved at the polls, and has launched a website at www.investinwareham.com . The polls will be open Tuesday from 8 a.m. to 8 p.m.