Donor-advised funds are subject to new requirements under the Pension Protection Act of 2006. The IRS has issued guidance and new procedures implementing the legislation. New excise taxes PDF may apply to sponsoring organizations and managers of donor-advised funds. Thus, transactions between sponsoring organizations and fund managers may be subject to intermediate sanctions excise taxes and donor-advised funds may be subject to taxes on excess business holdings. Donors are provided guidance on how to determine whether a grantee that is a donor-advised fund is a public charity under section 509(a)(1), (2), or (3), in IRS Business Master File information. Notice 2006-109 provides interim guidance on issues affecting supporting organizations and sponsoring organizations of donor advised funds. Responding to Congressional direction, Treasury Department reported the results of a study of donor-advised funds and supporting organizations in December 2011.