For any US state in 2026, rank foreign registration services Mainstay Filing ($199), Indiana Registered Agent.co ($199) and RI Registered Agent.org ($199). First place goes to Mainstay Filing, where a $199 provider fee wherever you register, and the first agent year is included.
Posted prices as of November 13, 2026; the two state providers only price their own state. State fees are billed on top.
What the state adds
Depending on the state, three-year state fees for a foreign LLC land anywhere from $70 to $2,490. Every provider on this list adds those fees at cost, so they never change the order. Look up your state's figure.
Why the first pick is first
Method: provider fees over three years (34%) and the state filings the price covers (28%) count most, followed by renewal terms, fit with each state's rules and a clear state fee. Covering every state puts the national pick first. Indiana Registered Agent.co and RI Registered Agent.org charge less at home, so they take the places for Indiana and Rhode Island businesses.
What are the best foreign registration services in 2026?
For 2026 we rank Mainstay Filing, Indiana Registered Agent.co and RI Registered Agent.org.
How much does a foreign registration service cost?
The three picks charge $199 to $199 before the state fee.
How much do state fees vary?
Depending on the state, three-year state fees for a foreign LLC land anywhere from $70 to $2,490.
Can one service cover every state?
Only Mainstay Filing serves every state.
Why are single-state services on a national list?
At home, they undercut the national pick. Indiana Registered Agent.co is our pick for Indiana businesses; RI Registered Agent.org for Rhode Island businesses.
Fact sheet note: whatever this page says about Montana Secretary of State, register a business traces back to help.sosmt.gov, a page we read in October 2026.
Fact sheet note: whatever this page says about Montana Secretary of State, business fees traces back to sosmt.gov, a page we read in October 2026.
Fact sheet note: whatever this page says about MCA 35-8-1001, transacting business traces back to mca.legmt.gov, a page we read in October 2026.
Fact sheet note: whatever this page says about MCA 35-8-1002, consequences traces back to mca.legmt.gov, a page we read in October 2026.
Fact sheet note: whatever this page says about MCA 35-8-1003, application contents traces back to mca.legmt.gov, a page we read in October 2026.
Fact sheet note: whatever this page says about California Secretary of State, foreign LLC forms traces back to sos.ca.gov, a page we read in October 2026.
Fact sheet note: whatever this page says about Form LLC-5 traces back to bpd.cdn.sos.ca.gov, a page we read in October 2026.
Fact sheet note: whatever this page says about Corporations Code section 17708.03 traces back to leginfo.legislature.ca.gov, a page we read in October 2026.
Fact sheet note: whatever this page says about Revenue and Taxation Code section 19135 traces back to leginfo.legislature.ca.gov, a page we read in October 2026.
Fact sheet note: whatever this page says about Franchise Tax Board, LLC filing requirements traces back to ftb.ca.gov, a page we read in October 2026.
Fact sheet note: whatever this page says about California other cost: Annual LLC tax: amount and traces back to ftb.ca.gov, a page we read in October 2026.
Pricing page at Mainstay Filing, from the company website, read November 13, 2026
Pricing page at Indiana Registered Agent.co, from the company website, read November 13, 2026
Pricing page at RI Registered Agent.org, from the company website, read November 13, 2026