Hello Kathy,
Welcome to the Community.
QuickBooks Online can connect with several POS platforms. It saves time, reduces human error, and combines analysis tools. For now, we can only provide articles and steps how to connect our own POS platforms to QBO.
You may want to reach with the TD Bank support team to learn more how to integrate their POS with QBO.
Let us know if you have any questions. We'll be right here to help.