Make up the difference for what?
Ex, you own land at the corner of Walden and union, it’s vacant so you pay a few bucks a year in taxes on it.
Now, you get all crazy and decide that you want to A. stay in NY and B. build a business there, which means you’re really nuts.
So an IDA, in this case, Erie county IDA has some meetings with you and lawyers and bankers etc.
In exchange for you spending your and possibly the banks loan money, the IDA makes a deal where you only pay a certain percentage of taxes for a certain amount of years with a drop dead date of whenever.
Now that vacant land is a thriving business, that’s assessed at let’s say 2 million dollars.
Now you’re paying say half of what the normal taxes should be or maybe 20-25,000 ish and gradually goes to full after a certain amount of years.
Now you could have just sat on the land until you sold it or croaked or you really got smart and moved out of NY, and only paid a minimal tax amount on it for as long as you own said land.
Or, now that you are a thriving “rich” businessman, the poor town, poor county, poor school districts are reaping the tax money from your project, albeit at a reduced amount for a few years but better than before when they got peanuts from your vacant lot filled with stolen grocery carts
