That depends on your contract, if you have none--there must have been some sort of discussion when you took the job as to when paychecks would be received. I am paid bi-weekly, as is my brother, but there are other people I know who are paid weekly, per diem and even monthly... so it depends on the situation. I think that the it has to be a reasonable amount of time if a long stretch was not previously agreed upon. If you're having a problem with non-compensation, you can contact the IRS, or your local employment authorities.