Ann and Bill were on the list of a local adoption agency for several years seeking to adopt a child. Finally, in 2016, good news comes their way and an adoption seems imminent. They pay qualified adoption expenses of $5,000 in 2016 and $11,000 in 2017. The adoption becomes final in 2017. Ann and Bill always file a joint income tax return.

a. Determine the amount of the adoption expenses credit available to Ann and Bill if their combined annual income is $120,000. What year(s) will they benefit from the credit?

b. If Ann and Bill’s modified AGI in 2016 and 2017 is $220,000, calculate the amount of the adoption expenses credit.