Idaho

A foreign filing entity or foreign LLP may not do business in the state until it registers with the secretary of state. The following do not constitute doing business:

(1) Maintaining, defending, mediating, arbitrating, or settling an action or proceeding;
(2) Carrying on any activity concerning its internal affairs, including holding meetings of its interest holders or governors;
(3) Maintaining accounts in financial institutions;
(4) Maintaining offices or agencies for the transfer, exchange and registration of securities of the entity or maintaining trustees or depositories with respect to those securities;
(5) Selling through independent contractors;
(6) Soliciting or obtaining orders by any means if the orders require acceptance outside the state before they become contracts;
(7) Creating or acquiring indebtedness, mortgages or security interests in property;
(8) Securing or collecting debts or enforcing mortgages or security interests in property securing the debts, and holding, protecting or maintaining property so acquired;
(9) Conducting an isolated transaction that is not in the course of similar transactions;
(10) Owning, without more, property; and
(11) Doing business in interstate commerce.

Retailers (and marketplace facilitators) without a physical presence in Idaho must collect Idaho sales tax when their sales in Idaho exceed $100,000 in the current or previous year.