Your employer put the CASDI in the wrong place. That belongs in box 14. Box 15 is for the state ID and the employers state tax ID number only.
Just enter that into box 14 and not box 15 - it will make no difference and does not require a corrected W-2 from your employer.
**Disclaimer: This post is for discussion purposes only and is NOT tax advice. The author takes no responsibility for the accuracy of any information in this post.**
