Do I Have to Get a Tennessee LLC if I Do Business in Tennessee and Have an LLC in Another State?

Anyone conducting or transacting business in the State of Tennessee, who has their business registered in another state (for example, someone who has a Wyoming LLC but who runs their business out of a Tennessee location), must register with the State of Tennessee for a Certificate of Authority. That does not mean they have to have a Tennessee LLC, but they will have to pay fees and taxes that could make conducting business in Tennessee more expensive than they realize.