I wish in OwnerRez for the Booking .com integration, but perhaps others, there was a setting to change surcharges from non taxable to taxable on the data that comes in on the booking as charges. As an example I have a surcharge that booking .com charges tax on since they handle these in their system directly but when the amount and surcharge comes over to Ownerrez it’s flagged as non taxable - so each transaction I have to manually update the charges so the line item pivot report will corrrctly reflect that it’s taxable. No huge thing but just wish the manual process could be resolved by a setting to say bring in as taxable.
So far as I am aware, none of the channel APIs offer the ability to set whether a specific surcharge is taxable.
As far as bringing in information accurately, our Booking.com integration is being heavily overhauled, and there will be significant improvements over the course of this year.