Complete guide to invoices Make a simple invoice in 5 steps Flat Rate vs. Hourly pay explained Free on Board (FOB) accounting How to properly fill out an invoice Interim invoices and how to draft them Invoice numbers and how to generate them Is an invoice the same as a bill? Payment terms Payment terms: What does 'Net 30' mean? Print an invoice Send an invoice via email in 4 simple steps Strategies when writing an overdue invoice letter What is a Purchase Order number? What is a Shipping invoice? A simple guide to Bill of Lading What is a Tax invoice? What is a Sales invoice? Write an effective sales invoice letter Write a partial-payment invoice Write a professionally worded invoice 10 types of invoices