A client in Denver told me my invoices were confusing
They said the line items were too vague, like just 'design work' for $1500. I switched to breaking it down by specific tasks and hours, adding dates for each phase. Now I use Harvest for tracking and clients haven't complained since. How specific do you get on your billing to avoid problems?
How detailed should you get? I found that listing each task with its own hours and cost stopped all the confusion. It takes a bit more work but it's worth it.