I started a company in 2018 called SpineTrek,LLC. in NV. We had zero business or expenses in 2018. What tax forms do I need to file

[DanielV01]

For the Federal return, you have nothing to report on the LLC, which is a disregarded entity, meaning that there is only taxation when there is business activity (on the personal return).  Nevada has no state income tax, but does have a filing requirement to keep your LLC active.  Please see this website link for assistance:  https://www.nvsos.gov/sos/businesses/start-a-business/limited-liability-company