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Foreign registration worksheets · Delaware

3 Best Foreign Registration Services in Delaware (2026): Worked Prices

Worked out for 2026, the best-value foreign registration services in Delaware come to Delaware Registered Agent.ai ($199), Mainstay Filing ($199) and DE Registered Agent.org ($199), in that order. Delaware takes $200 to register. Add the service rows, $397 to $497 over three years, to that.
Worked by the Formation Math editorial team

↓ Sorted by: Score = 42% three-year total + 28% coverage + three smaller terms (details)

Delaware in brief

Charge for registering $200 delcode.delaware.gov (checked October 2026) as the source
Year 1 spread $199 Provider charges only
Three-year range $397 to $497 Service fees only, 3 years
Three-year state total $1,000 Left out of the score
Where rows cross No break-even No change in order

Worksheet: Delaware

Each row shows year one, the price after that and the three-year sum. Delaware's $200 comes on top.

1
Top score

1. Delaware Registered Agent.ai: best for adding exactly one state

$199 on top of the state's $200; renewals at $99
Year-1 price $199
Price after year 1 $99/yr
Sum of 3 years $397

Row one is Delaware Registered Agent.ai. The math: $397 in service fees across three years.

Its three-year total is below Mainstay Filing's, and the three-year total counts 42% of the score.

The price buys

  • The Delaware registration filing
  • Year-one agent service

Adds up

  • Then $99 a year
  • $199 for the registration
  • Year-one agent covered

Does not add up

  • A second provider is needed at home
2
Covers the most items

2. Mainstay Filing: best for LLCs that keep expanding

$199 on top of the state's $200; renewals at $149
Year-1 price $199
Price after year 1 $149/yr
Sum of 3 years $497

Mainstay Filing fills row 2: $199 plus the state's fee, a free first year of registered agent, then $149 a year.

On three-year total it is $100 behind Delaware Registered Agent.ai.

When the free year runs out, the agent bills $149 yearly.

The price buys

  • Registration papers, prepared and filed
  • Registered agent with no charge in year one
  • Valid in all fifty states

Adds up

  • $199 plus the state's fee
  • First-year agent service included
  • Useful if another state follows

Does not add up

  • $50 above Delaware Registered Agent.ai at renewal
3
Built for Delaware

3. DE Registered Agent.org: best for one added registration

$199 on top of the state's $200; renewals at $99
Year-1 price $199
Price after year 1 $99/yr
Sum of 3 years $397

DE Registered Agent.org is row 3: $397 in service fees across three years.

Delaware Registered Agent.ai publishes the same prices.

The price buys

  • The Delaware registration filing
  • Year-one agent service

Adds up

  • $199 for the registration
  • Year-one agent covered
  • Then $99 a year

Does not add up

  • A second provider is needed at home

Running sum by year

No. Provider Year 1 total Total at year 2 Total at year 3 Total at year 5
1 Delaware Registered Agent.ai $199 $298 $397 $595 Visit Delaware Registered Agent.ai Partner link. We may earn money if you buy.
2 Mainstay Filing $199 $348 $497 $795 Visit Mainstay Filing Partner link. We may earn money if you buy.
3 DE Registered Agent.org $199 $298 $397 $595 Visit DE Registered Agent.org Partner link. We may earn money if you buy.

Prices as published on November 13, 2026; year one, then renewals added one at a time. No break-even shows up in ten years.

Break-even check

How many years will you keep the company? Choose and compare.

Adding up 3 years: Delaware Registered Agent.ai $397, Mainstay Filing $497, DE Registered Agent.org $397. Lowest total at that point: Delaware Registered Agent.ai.

The state's side of the math, Delaware

Term Value Where it comes from
Filing the registration $200 delcode.delaware.gov (checked October 2026) as the source
Annual LLC tax $400 corp.delaware.gov (checked October 2026) as the source
State side, 3 years $1,000 Adds the rows above

Our state figure adds three things: the filing, two years of reports and a minimum tax where there is one. Variable costs like publication stay out.

The working behind Delaware

Delaware Registered Agent.ai wins three-year total, worth 42%, with Mainstay Filing close behind.

On the three-year total Delaware Registered Agent.ai comes to $397, a $100 difference from Mainstay Filing.

Delaware foreign LLC registration fee and rules, from the source

The Delaware Department of State, Division of Corporations collects $200 and the Certificate of Registration of a Foreign Limited Liability Company from out-of-state LLCs doing business in Delaware. It requires certificate of existence from the jurisdiction of formation no older than 180 days.

An unregistered LLC may face its own claims cannot be brought (6 Del. C. 18-907(a)).

Quoted from: corp.delaware.gov (checked October 2026) as the source

The no-service row

With no service, three years cost $1,000 in state fees. Each service adds its own row, $397 to $497 over the same period.

Questions

How much does Delaware take to register an out-of-state LLC?

$200 as the official fee, plus a service fee of $199.

What do the services add up to over three years?

$397 to $497 across the rows, not counting state fees.

Which form does the registering?

The form is Certificate of Registration of a Foreign Limited Liability Company, and the Delaware Department of State, Division of Corporations receives it.

Does Delaware ask for a paper from the home state?

Yes, and it must be under 180 days old: certificate of existence from the jurisdiction of formation.

What recurring filing comes after registration?

The Annual LLC tax, which costs $400.

In what year does one service pass another in total cost?

Never in ten years: the order of the running sums does not change.

Which foreign registration service is best value in Delaware?

Delaware Registered Agent.ai scores first. Mainstay Filing and DE Registered Agent.org follow.

See also

Foreign registration worksheets, all 50 states Best foreign registration services overall The method

Inputs and sources

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