On November 17, 2014, the IRS posted Bulletin 2014-47. This bulletin stated:
Adoption Credit. For taxable years beginning in 2015, under § 23(a)(3) the credit allowed for an adoption of a child with special needs is $13,400. For taxable years beginning in 2015, under § 23(b)(1) the maximum credit allowed for other adoptions is the amount of qualified adoption expenses up to $13,400. The available adoption credit begins to phase out under § 23(b)(2)(A) for taxpayers with modified adjusted gross income in excess of $201,010 and is completely phased out for taxpayers with modified adjusted gross income of $241,010 or more. (See section 3.19 of this revenue procedure for the adjusted items relating to adoption assistance programs.)
A link to the full bulletin is below. The Adoption Tax Credit information may be found at page 37.