I have only seen laws about how much you can make not how much you can store. I know I have 1,000 bottles of what I have made; five 40 gallon kegs bulk ageing, and 30 gallons in glass jugs that is ageing. We keep good records of what we made and when.
I did some searching to find out if there is a max you can have at your house and didn’t come up with anything. I did send an email to someone that can find out. This will be the last year I make wine for a few years if there is a limit on how much you can have at your house.
I own a catering business and also have a party hall. We inventory the wine every 6 months and I know we had over 2,000 bottles the last time we did it. there us nothing about how much you can store in my “Wine and Beer On and Off Premises” with shipping paper work. Every year you must send in paperwork so they know we have a good size stash at our business.