I am preparing a final year return for a Company going out of Business and having trouble zero out depreciation and retained earnings. Can anyone help me?

That is a very technical issue for a subchapter S corporate return.

You need to contact a CPA or enrolled agent to prepare such a return if you are not SURE how to do it. It may cost you anywhere from $500 to $1,000, but it will be worth it to avoid potential HEADACHES that an IRS audit would produce.