My client called me wondering about the tax benefits, if any, of hiring an assistant for his W-2 job.

I want to preface this by stating that my client is a Sales Rep/Account Executive for a Medical Equipment Sales company. He receives a W-2 from his employer and does not have his own business. 

My client's job requires a lot of travel. My client recently had twins, so he is looking for a way to keep his job without traveling so much now that he has a family.

He spoke with his employer about needing an assistant but his employer won't hire anyone to assist him. The position itself not only requires a lot of travel but a lot of follow-up and scheduling.

He asked me if he can hire an independent contractor to help him with some of the admin stuff and travel. He would pay them a percentage of the commission he earns from his W-2 job. His commission is included in his W-2. He would be paying this assistant out of pocket since his employer refuses to hire someone. 

Are there any tax benefits to doing this? 

Thanks in advance!