TJ Maxx Credit Card Login Visit tjx.syf.com/login to sign in to your TJ Maxx card account online. You must be 18 years of age or older and a legal resident of the United States to obtain a card. Synchrony Bank issues the TJ Maxx Rewards credit card. The Synchrony Bank Privacy Policy governs using the TJX Rewards® … Continue reading TJX Credit Card Login, Payment, Phone Number