When city tax is hard coded in Mews (such in Hamburg) and included in the rate, Mews makes two postings, one to deduct city tax from the room rate and one to add it as city tax.

Mews marks both of those postings as "additional expenses". This is incorrect, as the reduction of the rate is a "space charge", not an "additional expense".

Consequence is that the hotels are unable to report on net room revenue in all reservation reports, as they cannot filter out the city tax / additional expense as originally foreseen by Mews.