Property taxes are becoming one of the biggest financial threats facing retirees across America. Many older homeowners who paid off their mortgages years ago are now struggling with rapidly rising assessments, insurance costs, and local tax bills that keep climbing despite living on fixed incomes. As pressure grows, several states are responding by expanding senior property tax relief programs, which could save qualifying retirees hundreds or even thousands of dollars annually if they apply before local deadlines arrive. Here are five states that have started to expand the tax relief programs available to seniors.