Short answers · Delaware

3 Best LLC Services in Delaware (2026), Plainly Answered

We'd pick DE Registered Agent.org ($199), Delaware Registered Agent.ai ($199) and Mainstay Filing ($199) in Delaware for 2026, in that order. On top of the $110 filing fee, the services cost $397 to $597 over three years.

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

Plainly put

Fee to form: $110, at filing
Each year after: $400 a year
Registered agent: Required by law
Our order: DE Registered Agent.org, Delaware Registered Agent.ai then Mainstay Filing

Who to use in Delaware

Prices come from each company's own pricing. How we choose.

1Top pick

1. DE Registered Agent.org: best for staying in one state

Formation $199, agent renewal $99

DE Registered Agent.org is the one we'd hire first in Delaware, because it charges $199 to form the LLC, agent included for year one, then $99 a year.

Lower three-year cost than Mainstay Filing puts it first for a company staying in Delaware.

Budget time for the Annual LLC Tax; it is not included.

The price covers

Formation, done for you
Agent service for year one

Upsides

$99 a year after that
$199 over the state fee
Agent service, year one

What to weigh

Your own Annual LLC Tax to file
EIN help is $99 more

Visit DE Registered Agent.orgPartner link. We may earn money if you buy.

2Delaware specialist

2. Delaware Registered Agent.ai: best for a second in-state filer

Formation $199, agent renewal $99

Pick number 2, Delaware Registered Agent.ai, makes the list because it charges $199 to form the LLC, agent included for year one, then $99 a year.

Budget time for the Annual LLC Tax; it is not included.

Same published prices as DE Registered Agent.org; pick whichever you prefer.

The price covers

Formation, done for you
Agent service for year one

Upsides

$199 over the state fee
Agent service, year one
$99 a year after that

What to weigh

Your own Annual LLC Tax to file
EIN help is $99 more

Visit Delaware Registered Agent.aiPartner link. We may earn money if you buy.

3Works in any state

3. Mainstay Filing: best for one price that covers the paperwork

$199 a year plus the $110 state fee

Mainstay Filing comes third: one yearly price of $199 covers the filing, the registered agent and each annual tax.

The $200 three-year difference against DE Registered Agent.org is why it sits lower.

The Annual LLC Tax is part of the service; Delaware still charges $400, billed at cost.

The price covers

The formation filing
Registered agent all year
Annual tax handled each time
The EIN application
State fees at cost

Upsides

Flat $199 a year
Renews at $199
No extra charge for the EIN application

What to weigh

$100 more per year after year one

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

Prices together

#	Provider	Year one	Renewal	Three-year total	You get
1	DE Registered Agent.org	$199	$99/yr	$397	Formation, done for you; agent service for year one	Visit DE Registered Agent.orgPartner link. We may earn money if you buy.
2	Delaware Registered Agent.ai	$199	$99/yr	$397	Formation, done for you; agent service for year one	Visit Delaware Registered Agent.aiPartner link. We may earn money if you buy.
3	Mainstay Filing	$199	$199/yr	$597	the formation filing; registered agent all year; annual tax handled each time	Visit Mainstay FilingPartner link. We may earn money if you buy.

Service fees only, from each company's prices on November 12, 2026. State fees are the same with every pick.

Common questions

What does it cost to form an LLC here?

Budget $110 for the state and $199 for a service.

By year three you will have paid the state $910. October 2026 · delcode.delaware.gov

Which form creates the LLC?

The LLC starts life when the Delaware Secretary of State accepts the Certificate of Formation of a Limited Liability Company.

See 6 Del. C. § 18-201. October 2026 · delcode.delaware.gov

Must the LLC name a registered agent?

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.

October 2026 · delcode.delaware.gov

What do I owe each year after that?

The Annual LLC Tax, once a year, at $400 each time. It is due annual alternative-entity tax due on or before June 1.

Miss the deadline and the state adds $200.

October 2026 · legis.delaware.gov

Can I skip the service?

It is allowed. Do-it-yourself cost for three years: $910 in state fees.

The services charge $397 to $597 across three years for that work.

Why these three?

DE Registered Agent.org leads on three-year cost, which weighs 35% in our order.

Three-year cost counts for 35% and what the price takes off your plate for 30%; the other three criteria are smaller.

On cost, DE Registered Agent.org wins at $397 for three years, a $200 saving against Mainstay Filing.

The criteria in full

Delaware rules at a glance

What	Answer	Cited
LLC filing fee	$110	October 2026 · delcode.delaware.gov
Registered agent	Required by law	October 2026 · delcode.delaware.gov
Annual LLC Tax	$400 every year	October 2026 · legis.delaware.gov
Three-year state total	$910	Our sum of the fees above

Every amount links to its official source. The three-year line is our own sum of filing, reports and any minimum tax.

FAQ

Is the EIN application included?

EIN help costs $99 with DE Registered Agent.org or $99 with Delaware Registered Agent.ai, and nothing extra with Mainstay Filing.

What happens if I miss the report?

$200 on top of the report fee.

How do the three-year costs compare?

DE Registered Agent.org $397, Delaware Registered Agent.ai $397 and Mainstay Filing $597 in service fees.

Where do these figures come from?

Official Delaware sources for state fees, company price pages for service fees.

Does the state require a service?

Not required. Services charge for doing the paperwork for you.

Who is your first choice in Delaware?

DE Registered Agent.org tops our list because formation costs $199 and the yearly agent renewal is $99; Delaware Registered Agent.ai and Mainstay Filing come next.

Sources for this page

corp.delaware.gov (Delaware yearly filing: Recurring obligation, October 2026)
corp.delaware.gov (Delaware yearly filing: Recurring obligation, October 2026)
legis.delaware.gov (Delaware yearly filing: HB 400, October 2026)
delcode.delaware.gov (Delaware report due date, August 2026)
delcode.delaware.gov (6 Del, August 2026)
delcode.delaware.gov (Delaware registered agent statute, October 2026)
November 12, 2026: DE Registered Agent.org pricing page
November 12, 2026: Delaware Registered Agent.ai pricing page
November 12, 2026: Mainstay Filing Delaware service page