The time necessary for a business to turn a profit has many different variables, and the achievement of a $30K NET profit would certainly depend on the type of business that you operate.

Market fluctuations, the state of the local & national economies, competition, capital investment, working capital, expertise, and many other factors, will all have an affect how quickly a business can be brought to fruition.

I've owned and operated retail stores, distribution businesses, e-stores, and more. The time it took each business to turn a profit was vastly different. Some of my businesses took off, while other never made a profit at all.

After much trial and tribulation the secret that I have learned is to trust my business instincts to know when to hold-em' and when to fold-em'. I've certainly stayed in a failing business too long, and I have also given-up on great business ideas without providing them with the effort and work that would have made them great successes.

If you are wondering when your profits will start to come, the best thing to do is step back and analyze why they haven't already arrived. Have you exhausted your avenues of marketing? Perhaps an additional capital injection from a venture capitalist or bank would help to get your business over the "red-hump" and into the black.