A guest has cancelled due to the forthcoming second lockdown in the uk. Despite having a strict cancellation policy, I would like to give this guest a full refund. Should I wait until after the check-in date, i.e. after the payout for the 50% has been made to me, before making the refund? Or can I do it immediately? I am unclear if Airbnb still debit the guest for the 50% cancellation or not. I obviously don't want to be out of pocket.
Yes, it's best to wait to see if you actually get paid or if Airbnb refunds them in full. Just let the guest know that your intention is that they get refunded 100% of what you would have received for the booking, but that Airbnb doesn't pay hosts out until 24 hours or more after the guest's check-in time (most guests don't know this, many think the host has their $ as soon as they pay for the booking), so at this point you have nothing to refund.
if your messages between the guest and yourself agree a full refund then all the guest needs to do is have the helpline operator refer to said message and they will get all your money back.
if they’ve already cancelled then I suggest you wait to see what you get before refunding otherwise you will be out of pocket.