When do my billable hours start on a job? 11 December 2019 19:02 Updated As soon as you arrive at the task location. The task (or job) will finish once the work is complete and you leave. Related articles Are there any registration fees involved in joining FastTask? How do I book a task? What if I show up to find I cannot complete the task? Do I need to include GST/HST on my invoices to clients? What if I need more details before accepting a task?