DO I FILE A DEPRECIATION SCHEDULE IF MY BUSINESS IS CLOSED AND ALL ASSETS WERE SOLD

You will go through and "edit" each Asset and indicate it was sold, and enter the sales information.  TurboTax will then claim a partial year of depreciation, and report the sale.

However, did you ONLY sell the assets, or did you sell the entire business?  Is this a corporation, or is it a partnership, or is it a Sole Proprietorship (Schedule C on your personal tax return)?

Ok ... you will have depreciation for the time you did own the assets and then you will sell off all the assets and the losses (& depreciation recapture if any) will show on the form 4797 ... just follow the program interview step by step.