Thanks SO much! (sorry for the reply delay). This is the best way to accomplish what I need! I'm really surprised Support didn't offer this idea.
NOW... to find the Custom Tax area! I'm in the Listing for the property (I have only one). I'm in the Taxes & laws section and all I find is a link to more info. In there it tells me:
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Collecting occupancy taxes manually
There are several ways you can manually collect occupancy taxes from guests:
In each case, it's important that you inform guests of the exact tax amount prior to booking. Hosts that need to collect occupancy taxes in person should only collect it upon arrival. We’re unable to assist with manual collection.
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I see no options, so I guess I'm not using the professional hosting tools?! WELL, I JUST FOUND THEM! And now I'm filling out the needed info.
Thanks so much for the help! We'll see how well it works......