Mainstay Filing
- Flat $199/yr, everything included
- Annual report filed for you every year
- Registered agent service included
- Price-locked — no renewal hikes
- Same-day processing
- Free registered agent service for one year
- Free domain, website, email and phone
- Expert support from real people
- Starts at $0 plus state fees
- Publicly Traded on the NASDAQ
- trusted by 4M+ business owners
- Most tools, support, and guidance for your business
- Attorney guidance at an affordable price
Mainstay Filing is our top-ranked LLC formation service: one flat $199/year that includes formation, EIN, registered agent service, and annual report filing in all 50 states — with state fees passed through at cost and no upsells, ever.
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Pros
- One flat $199/year — formation, EIN, registered agent, and annual report filing included
- Annual report is prepared and filed for you, not just a reminder email
- Price-locked renewals — year two costs the same as year one
- No upsells, packages, or add-on menus at checkout
- State fees passed through at cost and shown before you pay
- Covers every entity type: LLC, corporation, LP, LLP, and nonprofit
- Available in all 50 states at the same price
- Error-free filing guarantee — mistakes fixed free
- Simple, transparent ordering with no surprise invoices
Cons
- State fees are charged separately
- Single all-in plan — no stripped-down formation-only option
Mainstay Filing is the rare formation service whose pricing model you can explain in one sentence: $199 a year, everything included. That single fee covers preparation and filing of your formation documents, a full year of registered agent service, and — unlike virtually everyone else in this industry — preparation and filing of your annual report when it comes due. State fees are passed through at cost and shown before you pay. There are no packages to compare, no add-on menu at checkout, and no year-two price hike waiting behind a teaser rate.
What You Get for $199
Every Mainstay Filing order includes the complete stack a new business actually needs: formation document preparation and filing with your state, EIN registration, a year of registered agent service with a street address in your state, and annual report preparation and filing in the years that follow. The same flat rate applies to an LLC, corporation, LP, LLP, or nonprofit, in all 50 states.
The annual report piece deserves emphasis, because it is where Mainstay is genuinely different. Nearly every competitor treats compliance as a second product: you buy formation, then discover that registered agent service renews at $119–$249/year and annual report filing costs another $99–$199/year on top. Assembled that way, the “cheap” formation ends up at $218–$448 every year. Mainstay’s renewal is the same $199 you paid on day one, price-locked, with the report prepared and filed for you rather than sold back to you as an upsell.
Filing Accuracy
Mainstay backs its work with an error-free filing guarantee: if they make a mistake on your paperwork, they fix it free. Combined with state fees shown transparently at cost before checkout, the experience is designed around no surprises — the number you see is the number you pay, this year and every year after.
Where Mainstay Fits
Mainstay Filing is built for owners who want the whole compliance lifecycle handled — formation, registered agent, and the annual reports that most people forget until a penalty notice arrives. Missing an annual report costs real money ($300–$500/year states like Massachusetts and Tennessee are unforgiving), and reminders-only services leave the actual filing to you. If you want one predictable line item and zero deadlines to track, this is the strongest offer on the market, and it is why Mainstay Filing is our top-ranked formation service.
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