Conventional Home Loan Vs Fha Loan Best fha loan rates Minimum Credit Score requirements for 2017. It is best to have a 620 credit score for either a conventional or FHA loan. If you have poor credit and your score is below 620, then an FHA may be a better option. FHA requires a 500-479 credit score with 10% down. And a 580 or higher score with just a 3.5% down payment.Fha Rate Term Refinance Guidelines 2019 What are the FHA Cash-Out LTV/CLTV Limits? – – The FHA cash-out refinance offers flexible underwriting guidelines. The guidelines for the rate/term refinance are slightly more flexible than.