Hi Thomas W......my feeling is this....if the service is what you would expect.....no tip is needed.....we appreciate your stay.....if your service was beyond your expectations and put a smile on your face......tips to the concierge are very much appreciated......there is not a guide or a list for tipping the concierge.....the situation with each stay is different......how many nights (1 night or 1 week or more)......what size property (1 bedroom bungalow or 4 bedroom private villa)......how many guests (just the two of you or 10-12).....did you request help doing something that would not normally be part of their responsibilities (lost luggage, car rental issues, running errands, etc).....tipping is a very personal subject for many guests......so we leave it to their discretion.....again......we truly appreciate you choosing to stay with us and our concierges love what they do and their guests......and if you choose to tip.....we all say thank you!