If my Pennsylvania wages from box 16 is higher than my federal wages from box 1, what should I do?

 Pennsylvania requires employees to pay state income tax on retirement contributions. When contributions are subject to state income tax, Box 16 may be higher than Box 1. You return can't be e-filed. You need to print and mail in your return.

For more information please check When a tax return can't be e-filed no matter what you do