Actually, my plates are currently valid for another 8 months or so, it just that the MTO will not renew them because of a very large 407 bill that was built up when I leant a car to someone for a period of time. I'm working on paying it off, just don't have all the money up front. (Lesson learned). Currently everything on my car is valid, I just can't renew my stickers but was wondering if that was an issue for leaving the country.