(United States). A Billing Clerk earns an average wage of $13.89 per hour. People in this job generally don't have more than 20 years' experience. Pay for this job does not change much by experience, with the most experienced earning only a bit more than the least. Billing Clerk earns an average wage of $13.89 per hour. People in this job generally don't have more than 20 years' experience.