Originally Posted by
bertheike
How many different kind of taxes you think, may be included or added to you flight ?
I booked a flight with SQ and them send me a PDF 10 A4 sites with different tax codes which may be in my ticket

As each site has 58 codes ( only the last one less ), that's a total of aprox 550 !!! I never thought that Airline Fantasy goes so far to find different charges/taxes.
This is a list of all possible codes they use. They are based on airline flying, airport and country involved. Many of them are actually imposed by governments not airlines, like departure taxes etc.
Don't know all of those, but for example "AU Passenger Movement Charge" is Australian Government imposed charge of A$55.00 (see
http://www.customs.gov.au/site/page6068.asp).
Example from real LH issued ticket flying MEL-BKK(TG)-LHR(TG)||LCY-BSL(LX)||BSL-FRA(LH)-SIN(LH)-MEL(SQ) in 2013:
AUD 30.00YR AUD 397.90YQ AUD 5.10YQ AUD 29.93WY AUD 55.00AU AUD 3.98WG AUD 41.70GB AUD 53.00UB AUD 13.60CH AUD 8.30UU AUD 24.20RA AUD 7.30SG AUD 2.40OO