Should I amend last years return(2016) to include depreciation on my rental property?It was the first year of using the property as a rental.

[joemahms]

This year I added it and received a $7100 credit.
I lived in the home for 1 month before relocating.
Is there a fee involved with Amending the filing?

[PaulaM]

Yes, amend your 2016 return to record the depreciation, because even if you have not claimed the depreciation, the IRS will assume you did. There is no fee to amend your 2016 return. 

You will have to recapture (and pay taxes) on the allowable depreciation if you should dispose of the property down the road. Amending will allow you to get some benefit from that depreciation expense that is assumed to have occurred.

It’s a good idea to print the depreciation report every year for your records. This will help you when any depreciated asset (the rental itself, fences, vehicle, etc.) is disposed by sale or other.

https://ttlc.intuit.com/questions/1894381-how-to-amend-change-or-correct-a-return-you-already-filed 

https://www.thebalance.com/depreciation-recapture-3192979