I am showing the form to be calculating correctly using different scenarios.
@darrenritchie82 I tried to mimic your numbers that you noted above and run into a situation where the tentative minimum tax becomes the culprit as to why no credit allowed. It is very hard to speak for your individual tax situation but for those that are figuring the credit manually....are you figuring your tentative minimum tax as required for line 17 of form 8911? Excerpt from the instructions..."Although you may not owe alternative minimum tax(AMT), you must still figure the tentative minimum tax(TMT) to figure your credit. Complete and attach the applicable AMT form or schedule and enter the TMT on line 17". This requires you to compute this on form 6251.
