Updated August 23, 2022 – Below you will find the key information you need as a Flagstar Bank mortgage customer to access your account online, make payments, and reach customer service for further assistance.
Online Account Access
Customer Service – Help & Pay By Phone
- The Flagstar mortgage customer service phone number for payments and other assistance is 866-837-4539.
Mortgage Payment Address
P.O. Box 660263
Dallas, TX 75266-0263
If you live in a geographic area where Flagstar has branches, you can pay your mortgage at a local bank location.