Will a hotel booking API show me the local taxes and resort fees my customer has to pay at the hotel?

Yes, most hotel booking APIs do return these extra charges, but they usually arrive as a separate piece of information from the room price, so you need to show them to your customer yourself.

The reason is that the money is split into two parts. There is the amount your customer pays you at the time of booking, which is the room and anything the supplier collects up front, and there is the amount the hotel collects at the desk. City tax, tourist tax, resort fees, parking and cleaning charges normally sit in that second group. A good hotel booking API marks them as payable at the property and often gives them in the hotel's own currency rather than the one your customer is shopping in.

Be aware that how complete this information is depends on the supplier and on the hotel itself. Some suppliers send a clear, structured amount that you can drop straight into a summary box. Others send only a line of text written by the property, which you can display but cannot add up or convert. Where the charge is set in local currency, the amount your customer hands over at check in can also differ a little from what you quoted, because the exchange rate moves between booking and arrival.

The sensible next step is to run a few test searches in cities that are known for tourist taxes and look closely at what your supplier actually returns, then make sure that wording is repeated on your booking summary, your confirmation email and your hotel voucher so that nobody is surprised at the reception desk.