Originally Posted by
danpeake
What constitutes a small business? How does AMEX know that you are shopping at one? Is the transaction coded differently?
Short answer: A small business is a physical location (no online purchases) that is not owned by, operated by, or affiliated with a national or regional company or franchise.
Precise answer: Review the 2010 thread. Everything you need to know is there, with examples of transactions which were reimbursed or not:
http://www.flyertalk.com/forum/ameri...2-31-10-a.html