Year End Accounting Question for Flipping Business

[Mohamed Nagoor]

Hello BP Team,

I'm in the process of selling my 1st flip via my LLC.

I do maintain records and receipts of all of my investment activity for this flip via excel. Trying to understand the Accounting/Book Keeping work needed, in case I don't sell this home by year end. 

Also I only have expenses (yet to sell flip), do I need to file taxes for the LLC this year? Thanks