Sounds like the wages on your paycheck were from 2017. These wages should have been included on the Form W-2 you received from your employer which will be filed for your 2017 tax return. If any of the time worked and paid for was after December 31, 2017, these wages will be included on your 2018 Form W-2. If you are not sure if all of your 2017 wages were included on the Form W-2 (2017), please reach out to your Payroll or HR Department.
