odieoh pretty well nailed it. I've also heard of contracts that are all over the map. I used to think it was pretty standard across the industry, but that's not the case. You'll mainly find base + % of collections (e.g., 25-35%) above a certain threshold (e.g., 3 x base), but folks have told me about arrangements that sound more like limited partnerships (base + any profit above threshold). I've heard about partnership tracks with buy-ins close to $1 mil and others with no buy-in at all. Generally, if you're starting from scratch, you shouldn't expect much the first year, and the higher a base you can negotiate, the better. Keep in mind, though, that the attractiveness of the long-term arrangement may justify lower early pay. In my case, I knew I was taking less on the front end, but my buy-in is low and the potential is huge. It's worked out very well.