Testing fees are probably different in every organisation.
If you want an Aikikai certificate from Hombu however, once you have passed, I think I am correct in saying they are only issued once a year (end of January?)
2008 prices I think, were in the region of:- $188 for 1st & 2nd dan, $220 for 3rd, $290 for 4th, $800 for 5th
and $905 for 6th dan
Assuming these are approximately correct, does anyone know why the sudden jump in fees at 5th dan?
Not that I ever need worry...