I'm on a budget but need to do my MBA so I was wondering which business schools (in the USA) give out the most money in scholarships? I would like to spend less than about 50,000 USD for tuition fees if possible.

Rich, private universities with expensive MBAs have the largest scholarship programmes.

Read: The sad facts about scholarships http://www.find-mba.com/board/37055

If you do some research you'll find that some MBA programs in the US are under $50k USD, even for international students: BYU - Marriott, for instance, or SUNY - Buffalo.

Many business schools will also give out funding if you've substantially out-scored their average GMAT score.

Also -- I'm assuming you're an international student -- there are some loans available, if all else fails:

http://find-mba.com/news/2014/10/new-loan-scheme-available-for-international-students-doing-their-mba-in-the-us

Yes, I would be an international students. I didn't realize that there were good MBA programs at that price, thank you for pointing that out. I'll look at BYU and Buffalo.