Mandatory additional fees can show correctly in Guesty and still be missing from the booking quotes on your website.
Why this happens. Your website books through Guesty’s Booking Engine API, which appears in Guesty’s fee settings as its own channel named "BE-API". This is a separate row from "Guesty booking engine". Each additional fee has a Sync Fee with channels panel (in the fee’s settings, under Advanced capabilities / Manual sources) where every channel has its own on/off toggle plus Include in Fare and Deduct from fare options. If the BE-API row is switched off for a fee, that fee syncs to Airbnb, Booking.com, Expedia and the Guesty booking engine but never reaches your website’s quotes, even when the fee is mandatory.
How to fix it.
- Open the fee in Guesty (Financials → Additional Fees, or the listing’s Additional Fees section).
- Find the Sync Fee with channels panel.
- Switch the BE-API row on for each mandatory fee.
Choosing how the fee appears. Include in Fare folds the fee into the accommodation price as one bundled number and taxes it with the rent. Deduct from fare shows the fee as its own line item in the price breakdown.
Changes take effect on new quotes right away, so you can verify the fix by running a quote on your website immediately.