Where do I put the costs to remodel and repair of a rental property paid to market and sell it? I'd like to offset the gain on sale by the costs to sell.

I put the rental property on the market for sell 2016. I need to repair the septic system, so I put it on Sept 2016, and repaired the electrical, plumbing, water heater, gutter, and remodel kitchen and bathroom from March - Sept 2016. The property sold on Oct 2016. Where do I put all the cost?