The new tax law probably will cause a significant reduction in the number of people who file itemized tax returns, generating concern among nonprofits and causing them to rethink their strategy for approaching donors.
Americans donate about $390 billion a year to charities with 72 percent coming from individual donors, 15 percent from foundations, 8 percent bequeathed and 5 percent from corporate giving, according to a 2016 study by the University of Indiana.
