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Your checklist · Delaware

3 Best Foreign Registration Services in Delaware (2026) and What to Check

In Delaware for 2026, compare Mainstay Filing ($199), Delaware Registered Agent.ai ($199) and DE Registered Agent.org ($199), ranked best first. State fee: $200. Service fees over three years: $397 to $497.
Written by the Simple Filing Guide editorial team

Four facts to know

Registration fee
$200
Home-state certificate needed?
Yes, attach it (180 days or newer)
After you register
$400, Annual LLC tax
Our shortlist
Mainstay Filing, Delaware Registered Agent.ai then DE Registered Agent.org

Our Delaware shortlist

The scoring is laid out on this page.

#1 First recommendation

1. Mainstay Filing: best for registering in many states

Year one $199; later years $149

Rank Mainstay Filing first, as the fee is $199 in every state, and the registered agent is included for the first year.

Compare the price before you commit: Delaware Registered Agent.ai is $100 lower over three years, but it works in Delaware only.

There is no registered agent fee in year one; from year two it is $149 a year.

Checklist: what is included
  • Your foreign filing, submitted
  • Registered agent, no charge in the first year
  • A flat nationwide fee
What works
  • Ready for the next state you add
  • $199, with state fees extra
  • First agent year is covered
Gaps
  • Pay $50 more a year for the agent
Visit Mainstay Filing to begin Partner link. We may earn money if you buy.
#2 One-state pick

2. Delaware Registered Agent.ai: best for registering in this state only

Year one $199; later years $99

Delaware Registered Agent.ai is second, because its service fees come to $397 across three years.

Checklist: what is included
  • Foreign filing submitted
  • Year-one agent service
What works
  • Year one of the agent comes with it
  • Year two onward: $99
  • Only $199 to register
Gaps
  • Covers Delaware only, so your home state needs its own agent
Visit Delaware Registered Agent.ai to begin Partner link. We may earn money if you buy.
#3 One-state pick

3. DE Registered Agent.org: best for a low agent renewal

Year one $199; later years $99

DE Registered Agent.org is third, because its service fees come to $397 across three years.

Price for price it ties with Delaware Registered Agent.ai.

Checklist: what is included
  • Foreign filing submitted
  • Year-one agent service
What works
  • Year one of the agent comes with it
  • Only $199 to register
  • Year two onward: $99
Gaps
  • Covers Delaware only, so your home state needs its own agent
Visit DE Registered Agent.org to begin Partner link. We may earn money if you buy.

Costs side by side

#PickStartRenewal costTotal for 3 yearsIncluded
1 Mainstay Filing $199$149/yr$497your foreign filing, submitted; registered agent, no charge in the first year; A flat nationwide fee Visit Mainstay Filing to begin Partner link. We may earn money if you buy.
2 Delaware Registered Agent.ai $199$99/yr$397foreign filing submitted; Year-one agent service Visit Delaware Registered Agent.ai to begin Partner link. We may earn money if you buy.
3 DE Registered Agent.org $199$99/yr$397foreign filing submitted; Year-one agent service Visit DE Registered Agent.org to begin Partner link. We may earn money if you buy.

Each company's listed prices on November 13, 2026. State fees are extra and do not vary by pick.

Questions to settle

Who must register in this state?

An out-of-state LLC signs up with the Delaware Department of State, Division of Corporations first and begins business in Delaware afterward.

The cost of skipping it includes its access to the courts as a plaintiff is suspended (6 Del. C. 18-907(a)).

official source corp.delaware.gov (October 2026) to check

How much should I budget to register?

$200 to the state, $199 to a service.

Across three years the state's total comes to $1,000. official source delcode.delaware.gov (October 2026) to check

Where does the registration go?

File the Certificate of Registration of a Foreign Limited Liability Company with the Delaware Department of State, Division of Corporations. That single filing registers the LLC.

Add certificate of existence from the jurisdiction of formation dated no earlier than 180 days.

Are there ongoing fees to plan for?

Add the Annual LLC tax to your calendar ($400).

The schedule says June 1.

How did you rank them?

Mainstay Filing wins on filing jobs included, a 27% check.

Start with total for three years, then filing jobs included, then three smaller checks.

An out-of-state LLC already runs in two states, so a provider that serves both is the practical pick.

The five checks

What Delaware requires to register

ItemDetailsWhere it is from
Application fee $200official source delcode.delaware.gov (October 2026) to check
Good standing proof Yes, attach it, 180 daysofficial source corp.delaware.gov (October 2026) to check
Annual LLC tax $400official source corp.delaware.gov (October 2026) to check
State fees across three years $1,000Our sum of the rows above

The final row is a sum that we calculated, not a figure printed by the state: filing, two reports and any minimum tax.

FAQ

Do I still need an agent in my home state?

Keep one at home. Mainstay Filing serves both states, and a local company serves only one.

What do the picks cost over three years?

Mainstay Filing $497; Delaware Registered Agent.ai $397; DE Registered Agent.org $397, and state fees are separate.

Where do these figures come from?

State-set fees come from Delaware's publications; what services charge comes from the prices they post.

Must I hire anyone?

If you meet the rules on this page, you can file on your own, and the state charges the same either way.

Will a service file the registration for me?

Each company on this page files it for you; the state charges the same regardless.

Who is your first choice in Delaware?

Mainstay Filing leads on filing jobs included, ahead of Delaware Registered Agent.ai and DE Registered Agent.org.

Sources and price pages

  1. Source for Delaware yearly filing: Recurring obligation: corp.delaware.gov, October 2026
  2. Source for Delaware yearly filing: Recurring obligation: corp.delaware.gov, October 2026
  3. Source for Delaware yearly filing: HB 400: legis.delaware.gov, October 2026
  4. Source for Delaware report due date: delcode.delaware.gov, August 2026
  5. Source for 6 Del: delcode.delaware.gov, August 2026
  6. Source for Delaware registered agent statute: delcode.delaware.gov, October 2026
  7. Source for Foreign LLC registration form: corpfiles.delaware.gov, October 2026
  8. Source for Delaware Code Title 6, chapter: delcode.delaware.gov, October 2026
  9. Source for Division of Corporations fee schedule: corpfiles.delaware.gov, October 2026
  10. Mainstay Filing, Delaware service page: prices as of November 13, 2026
  11. Delaware Registered Agent.ai, pricing page: prices as of November 13, 2026
  12. DE Registered Agent.org, pricing page: prices as of November 13, 2026