No, hospitality on Couchsurfing is free. A host should never ask a guest to pay for their lodging, and a guest should not offer. We do recommend that a guest show their appreciation by cooking a meal, taking the host out, bringing a small gift or offering some other gesture. Hosts should only offer what they are able to offer freely, and say what those things are clearly in the Couch Information in their profile. If there are some things that can’t be offered unless the Couchsurfers agree to share the cost, this should be discussed between the host and surfer (and should never be a requirement for hosting).