Applying for a Marshalls credit card is a an easy process. First off, you want to remember that when searching for the Marshalls credit card, the card is not named the Marshalls credit card, it is called the TJX rewards credit card. The TJX credit card can be used at TJ-Maxx, Home Goods, Sierra Trading Post and Marshalls. Apply online by looking for the option that says apply for the TJX card today, or you can go directly to TJ-Maxx.com and apply for it there. Aside from that, you can also go to your local Marshalls or TJ Maxx store and request a card application.