When do my billable hours start on a job? 08 February 2019 19:54 Updated You start billing the customer once you arrive at the task location. Related articles Are there any registration fees to become a HeyBryan Expert? Do I need to include GST on my invoices to clients? Can I be a HeyBryan Expert if I don’t have trade certification? How does a homeowner book a task? What can I charge for my services?