Earlier this year.
And also if you have a designated companion or perhaps even "partner" you are taxed some amount on that now when they NRSA, check out your paycheck for specific amounts (they aren't large).
Parents/Spouse/Children are not included in the above statement AFAIK.
Before everyone gets their jump-to-conclusion mat out let me dispel the notion that this is specific to NK. It is a purely an IRS issue that we had nothing to say about + we were actually the last airline to implement this.