Are wages earned in 2017 but not paid until 2018 subject to the minimum wage increase?

Hi,

Not very well versed in labor laws but I will try my level best to answer your question. 

As per the law wages not paid or partially paid and the remaining not paid thereoff can qualify for backpay. These are excerpts from US Dept of Labor -

"A common remedy for wage violations is an order that the employer make up the difference between what the employee was paid and the amount he or she should have been paid. The amount of this sum is often referred to as "back pay." Among other Department of Labor programs, back wages may be ordered in cases under the Fair Labor Standards Act (FLSA) on the various federal contract labor statutes."

For more info on the same please click on the link below -

https://www.dol.gov/general/topic/wages/backpay

Or you could call the Dept of Labor Toll Free nos -

1-866-487-2365

Hope this was helpfull.

The wage increase applies, like all other labor law changes, to pay periods starting january 1, 2018 regardless of when "earned".  No matter how many hours were worked in 2017 all the hours paid in 2018 are at higher rate