Now that doesn't mean the incentives aren't skewed. But I don't think landlords buying their 20th house are getting the same benefits as a first time buyer.
The big one being taxpayer funded 30 year fixed rate mortgages, and subsidizing the existence of 0% and 5% downpayment mortgages.
>Your interest on your mortgage is tax free,
Literally 90% of US tax filers do not benefit from this, since it requires itemizing.
>the government offers cash back, etc.
I have not heard of this.
There are a variety of state, local and sometimes federal tax credits or down payment assistance for new home buyers.
I have no idea what "the governments offers cash back" means; but certainly the mortgage interest tax deduction is only available for homes in which you actually live for at least part of the year - it's not available for rental properties.
You can deduct mortgage interest as an expenses if you're renting a property, but that's exactly the same as any other loan used for a business activity and not specific to real-estate.
There may be additional tax benefits that accrue to a business that is paying interest, but that’s separate from personal deductions.
Then there'll be plenty of stock.
I wonder, though, what percentage of buyers this would affect. Lots of houses are behind purchased now with 100% down.
The way to fix this is painful but it is to revoke all incentives and to make people put down 25-50% as down payments. It will cool the market to near absolute zero short term but it will help long term in keeping housing to actually be housing.