As a work from home billing specialist, you send an invoice to each customer for services provided by your company. This job is particularly common in the medical industry, where you may also help seek reimbursement from insurance companies. Remote billing and coding specialists also work with banks, some commercial businesses, and anyone else who needs to bill customers manually. In this role, you may also process payment information, explain any charge customers ask about, or coordinate with an accounting department. You use the internet, telephone, email, or live chat services to complete your duties.