I have finish my taxes and was able to take the full $7500 Plug in Electric Drive Motor Vehicle Credit (form 8936), but was unable to take advantage of the Alternative Fuel Vehicle Refueling Property Credit (Form 8911)

. This was because of the Alternative Minimum Tax (Form 6251) is factored in on line 17 of form 8911. If you are also are taking the Plug in Electric Drive Motor Vehicle Credit you have to enter this in on line 15B of form 8911. In my case this dropped my tax below the Alternative Minimum Tax thus totally eliminating the credit. It also appears that the Plug in Electric Drive Motor Vehicle Credit is unaffected by the Alternative Minimum Tax. The Plug in Electric Drive Motor Vehicle Credit can only reduce your federal tax liability; it can't make it less than zero on line 55 of the 1040 form.