OUr club is run as a not-for-profit corporation, so we charge only what we expect to make to cover our expenses. We're actually prohibited from having too much in the bank because of our status which makes it a little awkward if we run into those times of the year when attendance is down (usually summer and November/December), or if we want to make improvemets. I've floated the idea of having a replacement reserve but so far we haven't had the time yet to investigate whether we are legally entitled to have such a thing.
I don't know if any aikido clubs in Canada are for profit (most of the karate clubs are), but we are governed by three organizations: the Ontario Aikido Federation, the Canadian Aikido Federation and lastly, overseeing the lot, is Hombu Dojo.
I don't know how things are done in the States. I know there's the United States Aikido Federation, with Yamada at its head, but my understanding is that not all dojos fall under this umbrella. (Here, for example, groups that practice Iwama style do not test at OAF/CAF seminars, and they have their own heirarchy which may or may not also be governed by Hombu. Must ask the next time someone from an Iwama dojo drops in.)