I usually file mine sitting at the desk....but I guess you could do the patio, the garage...almost anywhere.
But if you are looking for mailing addresses...
https://www.irs.gov/filing/where-to-file-your-taxes-for-form-1065
If an answer solves your issue, click on the "Mark as Best Answer" button! Makes it easier for people to find answers to similar questions that have already been posted.
