3 Best Foreign Registration Services in Tennessee (2026): Where to Start
Our 2026 recommendation for foreign registration services in Tennessee, in order, is Mainstay Filing ($199), TN Registered Agent.org ($199) and Tennessee Registered Agent.co ($199). All of the picks pay Tennessee $300; service fees for three years run $397 to $497.
Written by the Simple Filing Guide editorial team
The short route
What you pay the state
$300
Home-state certificate needed?
Yes, it is required (60 days old at the most)
Later on
$300, annual report
Our shortlist
Mainstay Filing, TN Registered Agent.org then Tennessee Registered Agent.co
Doing it yourself costs $300. With a service, add $199.
Add three years of state fees, registration included, and you get $900. sos-prod.tnsosgovfiles.com / October 2026 / confirmed
What do I submit?
Your LLC is registered once the Tennessee Secretary of State, Division of Business and Charitable Organizations approves the Application for Certificate of Authority, Foreign Limited Liability Company (SS-4233).
Attach certificate of existence or good standing dated no earlier than 60 days.
What do I owe once registered?
Add the annual report to your calendar ($300).
Filings come due First day of the fourth month after fiscal year end (April 1 for a calendar year).
Why is number one first?
Mainstay Filing wins on filing jobs included, a 27% check.
Total for three years is worth 37% and filing jobs included 27%, with three smaller checks breaking ties.
TN Registered Agent.org covers only Tennessee; your home state would still need another provider.
The final row is a sum that we calculated, not a figure printed by the state: filing, two reports and any minimum tax.
Quick answers
Will one agent cover both states?
Keep one at home. Mainstay Filing serves both states, and a local company serves only one.
What do the picks cost over three years?
Mainstay Filing $497; TN Registered Agent.org $397; Tennessee Registered Agent.co $397, and state fees are separate.
What sources do you use?
State-set fees come from Tennessee's publications; what services charge comes from the prices they post.
Is a service required by law?
No. A service charges for labor and the agent role, not for anything the state demands.
Will a service file the registration for me?
Each company on this page files it for you; the state charges the same regardless.
Which one do you recommend in Tennessee?
Mainstay Filing comes first: the fee is $199 in every state, and the registered agent is included for the first year. Next, TN Registered Agent.org and Tennessee Registered Agent.co.
Where each fact comes from
Source for Tennessee Secretary of State, Division: tnbear.tn.gov, August 2026
Source for Tennessee Secretary of State, Division: sos.tn.gov, August 2026
Source for Tennessee yearly filing: Annual report: sos.tn.gov, October 2026
Source for Tennessee report due date: law.justia.com, August 2026
Source for Tennessee formation fee: Filing fee: sos.tn.gov, October 2026