If you wish, you can recalculate the state income portion (Box 15) using your own math. If you decide to do so, do not e-file your return because the computers will pick up the mismatch and reject your return. Instead, print your return and submit it on paper. I'd suggest including a note explaining the discrepancy. Also, do not change the amount withheld (Box 17).
**Answers are correct to the best of my ability but do not constitute tax or legal advice.
