I was paid in 2018 for wages earned in 2016. In what year is that reported?

[thefourlacys]

My payroll office deducted the amount from the W-2 for 2018 but will not reply to any of my queries and my employer is clueless.  

[Critter]

The wages are taxed in the year they are paid no matter when you earned them ... so they are reported on a 2018 W-2 then they are reported on the 2018 return.