TurboTax Error Code 606 means your 16-character license code is invalid.
To fix it, error code 606,
- Carefully re-enter the code one more time,
- Be sure it matches the exact version purchased (Online vs. Desktop, Deluxe vs. Premier),
- Restart your computer,
- Try running as administrator
- If problems persist, contact the customer support department at
- How do I contact TurboTax?
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