We can renew by mail ONLY. If you want to license a car, transfer title, or move the date of renewal it requires a trip to the DMV. This year I just waited, let one tag expire, risked driving a little while on a new purchase and went in to do it all in one big LUMP. Now I've got all five cars in June and baring anymore purchases (or sales) I should be able to do them all on-line next year.