On 2010 returns, the amount of the adoption credit is up to $13,170, and it is fully refundable. Starting with 2010 returns, however, if you want to claim the credit for adopting a child, you’ll need to attach certain documents to your return. Without this substantiation, the IRS will disallow the credit. Because of the requirement to attach certain documents, if you claim an adoption credit, you cannot e-file your return.
In addition to filing Form 8839, also attach:
Source: Notice 2010-66
A fixed deduction allowed to every taxpayer, except those who may be claimed as a dependent by another person. Extra exemption deductions are allowed for a spouse on a joint return and for each qualifying dependent. A deduction of $3,400 is allowed for each exemption claimed on 2007 returns, but the deduction is phased out for certain high income individuals.