High-end homebuyers can now qualify for non-QM jumbo loans with credit scores down to 550 FICO, and no income documentation is required. No federal income tax is required. This forum will cover the frequently asked questions about Jumbo Loans. We will detail any discussions and frequently asked questions about jumbo loans. What are the minimum credit score requirements to get approved for jumbo mortgages? Anyone with questions or getting conflicting answers from mortgage lenders on jumbo mortgages can post their questions in this section.