Get Help with Payment Processing Error: Bad Card Data

Last updated: May 13, 2026, 3:52 PM

Question

  • What does Bad Card Data mean?
  • I got the error message Bad Card Data. How do I fix it?
  • How do I troubleshoot the Bad Card Data error?

Answer

The Bad Card Data error could be due to a faulty reader, incorrect card formatting, or card damage. To troubleshoot: 

  1. Insert the chip, tap the card, or manually enter the card information.
  2. Restart the terminal, or swap USB ports for your card reader. For more information, see Get Help With Toast Card Reader.