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@Ethics Plus wrote:

I have a client that the previous CPA did not Depreciate the building that is owned by the company.  They have owned the building since 2017.  If I depreciate it now will it throw up red flags for an audit? 

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Was it depreciated in 2017 or 2018?

If not, you can't just start randomly depreciating it now.  You need to file Form 3115, which does two things: (1) it allows you to start depreciating now, and (2) it allows you to 'catch up' on the missed depreciation that was not taken.

If it WAS correctly depreciated in 2017 or 2018, but then sometime after that the tax preparers stopped depreciating it, you need to claim depreciation now.  And you can ask the client if they want to hire you to amend the prior tax returns to claim depreciation.