The most my wife and I ever made running our resort was $164k in a year. We averaged out our hours and we made $5.35 an hour. However, we were taxed in 34% tax bracket. We could have worked at Taco Bell, worked just 80 hours a week each ... and made more because of a hire minimum wage.
To top it off, we had to pay $77k in "estimated taxes" that year as a result ... which made us watch our spending over the winter as we had so much money tied up.