It depends on your region. In some places, Airbnb may collect some taxes. You don't have to do anything. In other cases you will be responsible for collecting your taxes so it should be built into your rate. For example here in FL, Airbnb collects the state tax and it's shown as a line item when a guest books. They don't collect county taxes, so I have to file a monthly return for that. You'll want to spend some time in the help area and/or working with Avalara or some other hosting tax expert. https://www.airbnb.com/help/topic/264/local-tax