You may "know" that you have a successful idea, but that is not sufficient to obtain a business loan. Banks do not lend a business money based only on your opinion and are naturally cautious when extending loans. If you wish to obtain financing, you have to demonstrate, in writing, that your idea will be successful. This can be accomplished by developing a business plan. In addition to demonstrating business feasibility by developing a good business plan, a lender will also consider other criteria when making a loan decision. Issues such as owner equity contribution, collateral, and credit history are also important factors that determine the outcome of the loan decision.