I used Pro Diem, and it did not help at all...because I am in the Middle Class with a large AMT (Alternative Minimum Tax) penalty...any deductible items that lowers my regular tax owed, raises my AMT taxes owed by the same amount, so none of our business expenses help us at all.

The AMT may start to affect your taxes if you make around $65K....and the chances of AMT go up more and more...until you reach around $450K...and then there is no AMT....It is a middle class tax.