Originally Posted by
MSPeconomist
In the past, entering Japan during a connection required payment of additional taxes and fees that would not be included in your ticket price. Once I entered (on a USA passport so there were no visa issues) to use a landside lounge and was forced to pay IIRC 3000 yen in cash before I could go through exit passport control. Check carefully about the rules before entering Japan on a connecting ticket....
.
That might have happened in the old days when the airport tax was collected at vending machines before security. But it's been years since they did that, I cannot see how it would ghappen now.