Originally Posted by
Stewie Mac
[I searched and found
this thread, which
FLYGVA was maybe a bit prompt in closing

]
Berlin has a new (since January) city tax of 5% payable on non-business hotel stays. Does anyone know if this is charged for award stays (ie where 'price' is zero)? fwiw, it's for a stay at the Grand Hyatt.
I did post in the Hyatt forum but no-one there seems to know. I hope that the cross-post is permissible in this instance...
It doesn't matter if it's an award stay or not. The only criteria is if it's a business or leisure stay. You only have to pay for leisure stays (you should be able to proof if it is a business stay).
The payable city tax is calculated by the hotel from the net price (without taxes), not sure how they calculate it on an award bookings but they do

I never wasted time in analyzing the receipt of a few euros for maybe claiming a few cents.