Credit is not the only thing banks consider when determining whether or not they will lend you money. In addition to your credit score and history, banks look at your income and employment history. Lenders also look at your debt-to-income ratio. Banks will not approve you if you have a lot of credit extended, and you can only show a portion of your income. If you are self-employed, lenders want to see additional documentation before they give you a loan. The additional information you may need to provide could include additional tax returns, bank statements, and proof of income.