Is is good enough to have our own EIN and not file for the non profit status? Can we operate with a budget over $5,000 and not file for the 501 non profit status?

At what amount should we be filing taxes? If its over $5000.00 are we supposed to be filing as a small business or is it $25,000? Do we file the 990 tax form if we have not filed for that non profit status?

As a new President next year..I want to make sure we are legal and doing things the right way.