Mainstay Filing Review (2026)

The package covers the formation filing, a year as your registered agent and the state's yearly report, which 44 states require. The state fee is passed along at cost and shown before you pay. Mainstay charges one service price in every state, whatever the entity type. Alabama, Arizona, Missouri, New Mexico, Ohio and South Carolina have no yearly LLC report, so the package there means the formation plus the agent.

A company that already exists can buy just the agent for $149 a year, renewing at $149. Extras on the plan: served papers scanned and uploaded the same business day at no cost, your first three government mailings each year scanned free and compliance reminders. The annual report is only filed under the formation package; this plan skips it.

Registering an existing company in another state costs $199 plus the state's fee; the registered agent is free in year one and $149 a year later.

Mainstay Filing leads 29 of 50 registered agent cards, 28 of 50 LLC service cards and 26 of 50 foreign registration cards, and it heads all three nationwide cards. When a state agent edges it out, price is the reason; the state agents charge less for the agent alone, and Mainstay offsets that with a wider package.