Why do I only get an apprentice mechanic tool expenses available to use in future years? There is no apprentice mechanic tool expenses.

I am utterly confused, I have gone through all the questions and answers and still don't understand why it works this way.

I put in cost of eligible tools ($7500.), income ($53,000.) and I get no apprentice mechanic tool expenses. I do however get apprentice mechanic tool expenses available to use in future years? 

Thank you