New business owners are tempted to fund the business themselves, even if they don't have the savings to cover those expenses. They take out personal loans, max out their credit cards, or incur debt in other ways to get the money they need.

A few minor expenses here and there won't hurt you, but for the most part, you should never take out personal loans. Instead, work with investors, tap into your savings, or rely on your business credit to take out loans in the business's name.