I am looking for more understanding on how Property Taxes work when you buy, and when you sell. I recently bought a property for 3150.00 at auction, put about 2.5k in it, and sold it for 10k, and in the end lost about 300.00. I sold it FSBO, agreed to 1.5k realtor commission (mistake) for the buyer agent etc etc. - I decided I didn't want to mess with it because Im starting another project with higher potential return.

Now, as an example, I look at this one:

https://www.zillow.com/homes/63-GRANVUE-DRIVE-BELL...

Its on the Auction block, if I picked it up for 2 or 3k, and sold it for 10k to someone else who wants to work with it, essentially a wholesale deal, and didn't spend any money fixing it up, and agreed to max 1k realtor fees if any, I might make some money on it.

If you go to our county tax assessor site, and search '63 Granvue', youll see that 1) the total taxes for 2018 are $2981.38, and 2) they are paid by the bank already for 2018 

http://www.co.st-clair.il.us/Pages/parcel.aspx

What I am asking is - if I bought this at auction, and sold it within a couple of months as a property someone else can rehab, how would the property taxes work / what would I end up paying?  I avoid these small wholesale deals (especially after the one I mentioned above) because the taxes could make it not worth the while.

Apologies if this is a newbie question, Im used to making more profit and expecting up to 1 year of property taxes max, getting a discount at the beginning, then playing catchup at the end, ultimately paying p. taxes for the time I hold and carry the property.