Starting any business has a price, so you need to determine how you're going to cover those costs. Do you have the means to fund your startup, or will you need to borrow money? If you're planning to leave your current job to focus on your business, do you have some money put away to support yourself until you start making a profit? Find out how much you're going to need.
To become an officially recognized business entity, you must register with the government. Corporations will need an "articles of incorporation" document, which includes your business name, business purpose, corporate structure, stock details and other information about your company. Otherwise, you will just need to register your business name, which can be your legal name, a fictitious "Doing Business As" name (if you are the sole proprietor), or the name you've come up with for your company. You may also want to take steps to trademark your business name for extra legal protection.
Small businesses have a tougher time getting approved due to factors including lower sales volume and cash reserves; add to that bad personal credit or no collateral (such as real estate to secure a loan), and many small-business owners come up empty-handed. Getting funded takes longer than other options — typically two to six months — but banks are usually your lowest-APR option.