@Jana1844
Looks like you are doing 30day minimum due to the Short Term Rental Restrictions in Indio? Many Hosts list their homes to take advantage of the Coachella Festival in April (looks like you have done that in the past). For stays 30days or more there is no transient occupancy tax. However, when doing a special offer, you provide your rate (plus any fees) total to the guest. Airbnb will then apply their service to that as per what @Helen3 & @Joelle43 said. Therefore, the final number the guest sees includes the Airbnb Guest Service Fee on top of what your offer is; there should be no taxes, as you are doing the 30+ minimum.
City of Indio, CA Transient Occupancy Tax
Your monthly rate is very high compared to other listings. You might need to lower that a bit to attract monthly stays for the festival.