What Boston wants its nonprofits to pay

For the first time, Boston is proposing regular payments, based on property value, from major tax-exempt groups. Some groups already make voluntary payments of varying size. | Related article

Boston Medical Center

2011 voluntary payment
Payment proposed by city IN 5 Years
Payment if taxed
Property value

Tom Giratikanon / Globe Staff

Payment information from Boston PILOT Task Force, parcel data from Boston Assessing Department