Until you pay to get it out or they sell it at the auction.
If it's on public property, it can be impounded.
I would suggest you get the expired tags renewed as soon as possible. Depending upon your driving record and the length of time the tags have been expired, you may be ticketed and your car may be impounded if you are caught by law enforcement.
If the registration card is current, and, it matches the tags on the car, you MAY get off with a warning but if not, the most you SHOULD receive is a ticket for 'displaying expired tags.' Unless something else is going on that is not disclosed in the question, (e.g.- the tags on the vehicle are NOT the tags assigned to it) they shouldn't be wanting to impound the vehicle .
Is there a fine for having a junk car with expired tags
Your car will most likely be impounded, you'll be cited for driving a vehicle with expired tags, and it'll all end up costing you a lot of money in the end.
The Grace period for expired car tags in Tennessee is 30 days.
Normally, they'll remain with the vehicle.
Until the police spot you and impound your car. You cannot operate your vehicle with expired tags.
You can get your car impounded. Have to pay impound fees, plus hefty fines including court fees, depending on how far out your tags are. You could also be cited in some states for driving without insurance on top of all that. In Virginia, you get fine but car do not impounded if tag expired within 3 month. Get renew on tag before going to court (time limit must be within 3 month of tags expired). If you don't renew tag, the car can be impounded from court order. Any tag expire over 3 months will be impounded.
There is no buffer for the violation in New Hampshire. If the tags are expired, you can get a ticket.
If your car is parked on a public street and it has expired tags, you could get a citation. I'm not sure if it's technically a "parking ticket" or not.
Driving on an expired registration is illegal. Period.