Mainstay Filing ($199), Michigan Registered Agent.co ($199) and Georgia Registered Agent.co ($199) are our 2026 picks for the best foreign registration services, ranked in that order. Mainstay Filing is first: $199 plus each state's own fee, agent included in year one.
Prices read November 12, 2026. Every service passes the state fee through on top.
The state fees on top
On three-year state fees for a foreign LLC, the least expensive state comes to $70 and the most expensive, California, to $2,490. Those fees are the same whichever service you pick; the 50-state table lists them all.
What decided the list
We score cost over three years, coverage of state filings, renewal, state fit and transparency. Nationwide, coverage settles it: only one pick works in every state at one price. Michigan Registered Agent.co and Georgia Registered Agent.co charge less at home, so they make the list for Michigan and Georgia businesses.
Guides for all 50 states
Each state guide ranks the services we'd use there against that state's official fees. Foreign LLC fees by state.
Foreign Registration FAQ
What are the best foreign registration services in 2026?
In order: Mainstay Filing, Michigan Registered Agent.co and Georgia Registered Agent.co.
How much does a foreign registration service cost?
Our picks charge $199 to $199, plus the state fee.
How much do state fees vary?
On three-year state fees for a foreign LLC, the least expensive state comes to $70 and the most expensive, California, to $2,490.
Can one service cover every state?
Mainstay Filing does. The state picks cover a single state each.
Why are single-state services on a national list?
For one-state companies they are the lower-cost choice. Michigan Registered Agent.co is our pick for Michigan businesses; Georgia Registered Agent.co for Georgia businesses.
How did you choose the order?
Our methodology page lists the five criteria and their weights.