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Just the facts · Delaware

3 Best LLC Services in Delaware (2026), Simply Ranked

For LLC formation services in Delaware, here is our 2026 ranking: Mainstay Filing ($199), DE Registered Agent.org ($199) and Delaware Registered Agent.ai ($199). Plan on $110 for the state plus $397 to $597 in service fees over three years.
From the LLC Plainly editorial team

In a nutshell

You pay the state
$110, when you file
What keeps coming
$400 every year
Registered agent
Yes, it's required
Our picks
Mainstay Filing, DE Registered Agent.org then Delaware Registered Agent.ai

Delaware: the ranking

Prices come from each company's own pricing. Here's how we pick.
Our top pick

1. Mainstay Filing: best for not having to think about the annual tax

$199 a year, with the $110 state fee added

Mainstay Filing is our favorite here, because one yearly price, $199, covers the filing, the registered agent and the annual tax.

It isn't the smallest bill. DE Registered Agent.org is $200 less over three years, and the gap pays for more of the paperwork.

It handles each Annual LLC Tax and adds just the $400 the state charges.

Your money buys

  • LLC formation handled for you
  • Registered agent the whole year
  • Annual tax filed for you
  • EIN request filed
  • State fees passed on at cost

The good

  • They also apply for your EIN
  • Pay $199 a year and the filing, agent and report are covered
  • Year two is $199

Trade-offs

  • Its renewal is $100 above DE Registered Agent.org
Local to Delaware

2. DE Registered Agent.org: best for a lean start

First year $199; after that $99 annually

Second place goes to DE Registered Agent.org, where forming your LLC costs $199 and the agent is covered in year one, then $99 a year.

Block out time for the Annual LLC Tax, since it's not included.

Your money buys

  • LLC filing handled
  • No agent charge in year one

The good

  • You don't pay for an agent in year one
  • A small renewal of $99
  • Forms your LLC for $199

Trade-offs

  • You'd still be handling the Annual LLC Tax
  • Add $99 if you want help with the EIN
Local to Delaware

3. Delaware Registered Agent.ai: best for companies that stay in one state

First year $199; after that $99 annually

Third place goes to Delaware Registered Agent.ai, where forming your LLC costs $199 and the agent is covered in year one, then $99 a year.

Block out time for the Annual LLC Tax, since it's not included.

It charges what DE Registered Agent.org charges, so the order between them is close.

Your money buys

  • LLC filing handled
  • No agent charge in year one

The good

  • You don't pay for an agent in year one
  • Forms your LLC for $199
  • A small renewal of $99

Trade-offs

  • You'd still be handling the Annual LLC Tax
  • Add $99 if you want help with the EIN

At a glance

#WhoYear oneRenews atThree-year totalCovers
1Mainstay Filing$199$199/yr$597LLC formation handled for you; registered agent the whole year; annual tax filed for youVisit the Mainstay Filing sitePartner link. We may earn money if you buy.
2DE Registered Agent.org$199$99/yr$397LLC filing handled; no agent charge in year oneVisit the DE Registered Agent.org sitePartner link. We may earn money if you buy.
3Delaware Registered Agent.ai$199$99/yr$397LLC filing handled; no agent charge in year oneVisit the Delaware Registered Agent.ai sitePartner link. We may earn money if you buy.
These are service fees only, from each company's prices on November 13, 2026. The state's fees are the same whoever you pick.

Your questions, answered

What will it cost me to form an LLC here?

Plan on $110 for the state and $199 for a service in year one.

Over three years, state fees come to $910, the filing fee included. delcode.delaware.gov · October 2026 · checked

Where do I send the LLC paperwork?

Just one paper forms the LLC: the Certificate of Formation of a Limited Liability Company, sent to the Delaware Secretary of State.

Cited law: 6 Del. C. § 18-201. delcode.delaware.gov · October 2026 · checked

Does my LLC need a registered agent here?

Every LLC must name a registered agent with an in-state street address.

The LLC itself, a Delaware resident, or a business entity formed in Delaware or authorized to do business there.

delcode.delaware.gov · October 2026 · checked

What do I owe after the LLC is formed?

Put $400 aside every year for the Annual LLC Tax. The due date, per the state, is annual alternative-entity tax due on or before June 1; put it on your calendar.

A late filing adds $200 to the bill.

legis.delaware.gov · October 2026 · checked

Could I file this on my own?

You don't need a service. State fees alone would run $910 across three years.

Hiring a service runs $397 to $597 over three years, and Mainstay Filing folds the reports into that price, in exchange for the filing work.

What put number one on top?

Mainstay Filing leads on work taken off your hands, a 31% check.

Together, cost across three years and work taken off your hands make up 64% of the score.

One thing decides it: the Annual LLC Tax is in the first pick's price, while DE Registered Agent.org leaves it to you.

The five checks

What Delaware wants

WhatDetailsCheck it
Fee at filing$110delcode.delaware.gov · October 2026 · checked
Registered agentYes, it's requireddelcode.delaware.gov · October 2026 · checked
Annual LLC Tax$400 every yearlegis.delaware.gov · October 2026 · checked
State cost over three years$910Added from the rows
How we get the bottom line: filing + report in year two + report in year three + any minimum tax. Open-ended costs are described in the text only.

Other things people ask

What does getting an EIN cost?

You'd pay $99 at DE Registered Agent.org or $99 at Delaware Registered Agent.ai, and nothing extra at Mainstay Filing.

What happens if I'm late with the report?

A late report costs $200 more.

What's each pick's bill across three years?

Three-year totals are Mainstay Filing, $597; DE Registered Agent.org, $397; Delaware Registered Agent.ai, $397, not counting state fees.

How official are these figures?

Delaware's fee schedules and forms for state costs; each company's price page for service costs.

Can I just do this myself?

No law says you must hire anyone.

Who tops the list in Delaware?

Start with Mainstay Filing, followed by DE Registered Agent.org and Delaware Registered Agent.ai.

Sources, with dates

  1. corp.delaware.gov covers Delaware yearly filing: Recurring obligation; we confirmed it October 2026
  2. corp.delaware.gov covers Delaware yearly filing: Recurring obligation; we confirmed it October 2026
  3. legis.delaware.gov covers Delaware yearly filing: HB 400; we confirmed it October 2026
  4. delcode.delaware.gov covers Delaware report due date; we confirmed it August 2026
  5. delcode.delaware.gov covers 6 Del; we confirmed it August 2026
  6. delcode.delaware.gov covers Delaware registered agent statute; we confirmed it October 2026
  7. Mainstay Filing's Delaware service page, as of November 13, 2026
  8. DE Registered Agent.org's pricing page, as of November 13, 2026
  9. Delaware Registered Agent.ai's pricing page, as of November 13, 2026