Hire your first employee when you can no longer physically keep up with your schedule and have purchased EVERY piece of equipment to increase production. Before you hire someone make sure you have the equipment to support them. Make sure that employee can gross enough to pay for themselves, the equipment they operate, and your employer burden. Last thing, make sure you have STEADY work, no one wants to work 40 hours one week and then 10 the next.
John Deere Z Traks
and a lot of excedrin