Proposition 2 ½ limits the Town of Dennis, and all other Massachusetts communities, the amount of town-wide taxes that can be raised (tax levy). Proposition 2 ½ limits a community to raising town-wide taxes by 2.5% from the previous year's levy limit. Allowing for new growth can then increase this levy limit. New growth consists of property tax increases caused by new construction, renovations, or land use changes. Proposition 2 ½ does not limit any individual property tax increase or decrease.