All 50 states

3 Best LLC Services (2026), Plainly Answered

If you need a LLC service in 2026, our national order is Mainstay Filing ($199), Montana Registered Agent.co ($199) and Louisiana Registered Agent.co ($199). Why Mainstay Filing first: you pay a flat $199 a year, in any state, and the report filing is inside the price.

By the Plain Charter editorial team · Reviewed and updated November 12, 2026

Quick answer

Our national pick: Mainstay Filing
Montana only: Montana Registered Agent.co
Louisiana businesses: Louisiana Registered Agent.co
Elsewhere: State-by-state answers

Best across the US

Our stated criteria set the order.

1Our first pick

1. Mainstay Filing: best for owners in several states

$199 plus the state's fee; renewal $199

Mainstay Filing comes first. Put simply, you pay a flat $199 a year, in any state, and the report filing is inside the price.

Three years cost $200 more than Montana Registered Agent.co; that buys one provider in every state.

The price covers

Formation filing
Registered agent, full year
State report filed where the state has one
EIN application

Upsides

$199 in all fifty states
Renewal unchanged
Report filing included

What to weigh

Costs more than the state picks

Visit Mainstay FilingPartner link. We may earn money if you buy.

2Montana pick

2. Montana Registered Agent.co: best for Montana businesses

$199 plus the state's fee; renewal $99

Next is Montana Registered Agent.co, because it charges $199 to form a Montana LLC, agent free for year one.

Montana is its only state, so a second state means a second provider.

The price covers

Montana formation filing
Agent service in Montana, year one

Upsides

Lower renewal than Mainstay Filing: $99
$99 a year after

What to weigh

Nothing outside Montana
Report filing is on you

Visit Montana Registered Agent.coPartner link. We may earn money if you buy.

3Louisiana pick

3. Louisiana Registered Agent.co: best for Louisiana businesses

$199 plus the state's fee; renewal $99

In third place, Louisiana Registered Agent.co: it charges $199 to form a Louisiana LLC, agent free for year one.

Louisiana is its only state, so a second state means a second provider.

The price covers

Louisiana formation filing
Agent service in Louisiana, year one

Upsides

Lower renewal than Mainstay Filing: $99
$99 a year after

What to weigh

Nothing outside Louisiana
Report filing is on you

Visit Louisiana Registered Agent.coPartner link. We may earn money if you buy.

Compare the picks

#	Service	First year	Renewal	Three years	Where it works
1	Mainstay Filing	$199	$199/yr	$597	Every state	Visit Mainstay FilingPartner link. We may earn money if you buy.
2	Montana Registered Agent.co	$199	$99/yr	$397	Montana	Visit Montana Registered Agent.coPartner link. We may earn money if you buy.
3	Louisiana Registered Agent.co	$199	$99/yr	$397	Louisiana	Visit Louisiana Registered Agent.coPartner link. We may earn money if you buy.

Published prices on November 12, 2026; the two state picks price their own state. State fees extra.

The questions people ask

Can one service cover every state?

Yes: Mainstay Filing charges one price in all fifty states; the other two serve one state each.

That matters once a company registers in a second state.

Why include state-only picks?

Staying in one state? A local plan can cost less. Montana Registered Agent.co is our pick for Montana businesses; Louisiana Registered Agent.co for Louisiana businesses.

Why this order?

This page serves owners in any state, so reach across all fifty decides the top spot.

We weigh three-year cost and what the price covers most, then plain pricing, renewal terms and where it works. See how we rank

Also asked

What LLC service should I pick in 2026?

In order: Mainstay Filing, Montana Registered Agent.co and Louisiana Registered Agent.co.

What does a LLC service cost?

From $199 to $199, plus the state fee among our picks.

Over three years, what does each cost?

Mainstay Filing $597, Montana Registered Agent.co $397 and Louisiana Registered Agent.co $397, before state fees.

Where are my state's fees?

The state pages list the official fees and rules for each state, with sources.

How current are the prices?

From each company's own pricing pages on November 12, 2026.

Official sources and prices

Prices from the Mainstay Filing pricing page on November 12, 2026
Prices from the Montana Registered Agent.co pricing page on November 12, 2026
Prices from the Louisiana Registered Agent.co pricing page on November 12, 2026