Ok - just for everyone's benefit - I'll summarize what I learned today with CBJ.
Room rate collected = 14% tax
Cleaning fees collected = 5% sales tax
It's unclear if we should pay sales tax on the Airbnb fee since technically Airbnb should pay that since we never see that income, however, "technically" we are supposed to pay that since the renter is charged it from our rental. They said this leaves some open to interpretation since they have no idea what airbnb does in terms of whether or not they actually pay sales tax to Juneau on that fee they collect from the renter as a Airbnb service fee.
Biz license required (state of AK) and then you file a biz registration form with CBJ and then these fees are paid QUARTERLY on the last day of the quarter. Late fees incur after 30 day grace period ($25). Also, if you have no rental income during a quarter, you still have to file a quarterly report to show zero income.
Hope that's helpful to others.