There has been a lot of bantering across multiple threads about the nature of the FATCA IGAs which the IRS is entering into with other Treasury technocrats. I have come to realize that I didn’t have a clear understanding of the difference between a Tax Treaty, which requires ‘Advise and Consent’ versus this animal called an IGA which apparently does not.
I asked the question of the two who I consider to be the resident IBS experts, Tim and Jim over on this thread here, but I think they missed seeing it.
I wondered if anyone besides me was struggling to understand the technical nature of these things, and so I asked again via email on this Thanksgiving, and to my surprise, in spite of the holiday, I got a couple good answers. It was very much appreciated. Thought I would share it here for others that are looking for clarity. Continue reading

