Applying for a duplicate title is not currently one of our online transactions so please mail in your application and payment or drop it off at any DMV branch.

Fill in a lost title application (found on your state’s DMV website) Mail the form (s) with all required documents and fees Optional: visit your local DMV and file for replacement in-person You should ...

But in this case, because your buyer lost the title and the tags are expired, he’s got a mess on his hands. He cannot obtain a new title without your signature on an application for a duplicate.