I also don't quite fathom the which side of the buyer/seller equation we're on.
After submitting the authorization form for the NTTC, we are supposed to have that be completed on their end at some point (for me this is only the 2nd working day since I submitted it). At that point, there's another step, involving "executing" the NTTC, and it's here that it appears we're supposed to enter the AirBnB tax number (but: the instructions only mention their CRS, while the phone rep at NM TRD told me we could use their EIN if they don't have a NM homebase/account). Time will tell how transparent that is. Even after "executing" the NTTC, which attaches it permanently to our CRS account, I am not positive how that works going forward....my impression was that with an Executed NTTC on file, they will accept our deductions and non-tax-payment routinely.
I'll keep you posted here as I work through the process. FYI, there is a good FAQ section on NTTC on the CRS/TAP site, which details the steps, though doesn't clarify the buyer/seller thing.
I'm thinking of filing this first time (first period I'm renting, and also first period AirBnB is doing this gross receipts collection/submission in NM, I believe) using a hard copy and just sending along printouts of my one-page financial summary from AirBnB to show that they are submitting for me. I'll be paying for one VRBO booking myself as well; I'm thinking to enter three lines on the CRS form: one for the taxable AirBnB bookings being paid by AirBnB, one for the VRBO that I'm paying tax on, and one for a booking that's exempt from tax because it was for over a month.
Appreciating this discussion. More to come.
FWIW, I'm actually Jim, the owner, now in Maine; logging in via my friend's account who lives on the property and is overseeing the booking...but I've got more experience filing tax stuff so am handling this side of things!