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Researched and written by the Launchwise Review editorial team
Launchwise Review

Rankings of registered agents, LLC formation and foreign registration services in all 50 states.

Launch guide · Delaware · LLC service

3 Best LLC Services in Delaware (2026)

Researched and written by the Launchwise Review editorial team
For a 2026 launch in Delaware, Launchwise Review grades LLC services this way: Mainstay Filing ($199), Delaware Registered Agent.ai ($199) and DE Registered Agent.org ($199). Mainstay Filing earns the top grade here: $199 a year covers the Delaware filing, registered agent duty for the year and the annual tax; it renews at $199.
1
Our top pick

1. Mainstay Filing: best for formation, agent and annual tax wrapped into one price

$199 yearly, state fee billed on top ($309 at checkout in all)

Our mark 9.2 out of 10

Top grade, Mainstay Filing: the Delaware formation, your registered agent and the annual tax are bundled at $199 a year.

When renewal comes, Mainstay prepares and files the Annual LLC Tax so it is off your list. The Delaware fee is $400 every year, with a annual alternative-entity tax due on or before June 1 deadline, and being late adds $200; Mainstay passes the fee along at cost.

It runs $200 above Delaware Registered Agent.ai across three years; the extra paperwork it handles is worth that to us.

In the price

  • Formation paperwork prepared and sent in
  • A full year as your registered agent
  • Annual tax, prepared and filed each cycle
  • Your EIN application, done for you

Pros

  • Delaware's fee goes through at cost
  • A single $199 yearly price that covers the annual tax
  • Your EIN application is included
  • Renews at $199 without add-ons

Less good

  • After year one the agent portion is $100 a year above Delaware Registered Agent.ai's
Visit Mainstay FilingPartner link. We may earn money if you buy.
Read the Mainstay Filing launch review
2
Lower renewal than Mainstay

2. Delaware Registered Agent.ai: best for a Delaware LLC that wants to stay close to home

$199 to form, then $99 a year for the agent, plus the state fee

Our mark 8.7 out of 10

Next up is Delaware Registered Agent.ai: it forms the LLC in Delaware for $199 over the state's fee, with the registered agent free for year one, and keeps the agent for $99 a year.

You get an in-state street address for the registered office, and any papers served on the company are scanned into your online account.

The Annual LLC Tax is not in its published price, so that task stays on your list with Delaware, due every year.

In the price

  • The formation filing
  • A first year as your registered agent

Pros

  • The first year as your registered agent is free
  • Then $99 a year to keep the agent
  • A $199 service price plus the state fee

Less good

  • No Annual LLC Tax filing in the price
  • EIN application costs extra ($99)
Visit Delaware Registered Agent.aiPartner link. We may earn money if you buy.
Read the Delaware Registered Agent.ai launch review
3
Low renewal

3. DE Registered Agent.org: best for a launch that stays in Delaware

$199 to form, then $99 a year for the agent, plus the state fee

Our mark 8.5 out of 10

Rounding out the list is DE Registered Agent.org: it forms the LLC in Delaware for $199 over the state's fee, with the registered agent free for year one, and keeps the agent for $99 a year.

You get an in-state street address for the registered office, and any papers served on the company are scanned into your online account.

The Annual LLC Tax is not in its published price, so that task stays on your list with Delaware, due every year.

Nothing in the published price or features separates Delaware Registered Agent.ai from DE Registered Agent.org; go with whichever you like.

In the price

  • The formation filing
  • Your registered agent for year one

Pros

  • Covers the first year of registered agent service
  • A $199 service price plus the state fee
  • Year-two agent price: $99

Less good

  • No Annual LLC Tax filing in the price
  • EIN application costs extra ($99)
Visit DE Registered Agent.orgPartner link. We may earn money if you buy.
Read the DE Registered Agent.org launch review

The 3 grades at a glance

Place Company Launch grade Service price Second year Best fit Go
1 Mainstay Filing 9.2 $199 $199/yr Formation, agent and annual tax wrapped into one price Visit Mainstay FilingPartner link. We may earn money if you buy.
2 Delaware Registered Agent.ai 8.7 $199 $99/yr A Delaware launch on a tight budget Visit Delaware Registered Agent.aiPartner link. We may earn money if you buy.
3 DE Registered Agent.org 8.5 $199 $99/yr A Delaware launch on a tight budget Visit DE Registered Agent.orgPartner link. We may earn money if you buy.
Each grade out of 10 reflects our editors' reading of the weighted criteria on How we rank, not a customer rating.

Delaware LLC service cost in 2026: first year, renewals, three-year total

Company Year 1 Year 2 Year 3 Three years, total Files the Annual LLC Tax for you
Mainstay Filing $199 $199 $199 $597 Yes
Delaware Registered Agent.ai $199 $99 $99 $397 No
DE Registered Agent.org $199 $99 $99 $397 No
Prices were copied from each company's own pages on November 12, 2026. Add Delaware's $110 filing fee to any row; it is not in the totals.

Why Mainstay Filing grades first

Launchwise Review puts 26% on cost to launch and stay and 26% on launch paperwork handled, then spreads 48% over renewal behavior, state match and price transparency. For Delaware, the call came down to launch paperwork handled.

The state's report comes annually in Delaware, at $400, and a late one adds $200. Mainstay's price takes that filing off your list and Delaware Registered Agent.ai's does not, so coverage beat Delaware Registered Agent.ai's lower three-year cost.

Every criterion and weight is listed on How we rank.

Launching in Delaware: the state filing fee and form

Plan on $110 at the Delaware Secretary of State when you file the Certificate of Formation of a Limited Liability Company. Each company below adds that state fee at cost.

Your Delaware LLC after launch: the upkeep list

Next on the list: the Annual LLC Tax, every year, due annual alternative-entity tax due on or before June 1. Set aside $400 for the state. Late filing adds $200. Every LLC must name a registered agent with an in-state street address.

Quick answers about Delaware LLC services

What will it cost to launch an LLC in Delaware?

The state filing fee is $110; add a service fee of $199.

Which form starts the LLC?

Look for the Certificate of Formation of a Limited Liability Company at the Delaware Secretary of State.

Is a registered agent required on the Delaware formation form?

Yes. You name one on the formation form and keep one on file, with a street address in Delaware.

What stays on the to-do list after the LLC is launched?

The Annual LLC Tax is the recurring item, filed every year with a annual alternative-entity tax due on or before June 1 deadline and a $400 state charge.

Will the EIN application be handled in this price?

Mainstay Filing folds it into the yearly price. The application runs $99 at Delaware Registered Agent.ai and DE Registered Agent.org. Founders can also get an EIN from the IRS directly, with no fee.

Which service is the best start for a new Delaware LLC?

Mainstay Filing, because one $199 yearly price filing the Delaware formation, serving as your registered agent and filing the annual tax, then renewing at $199.

See also

Sources and dates

  1. Delaware yearly filing: Recurring obligation, official source, dated October 2026
  2. Delaware yearly filing: Recurring obligation, official source, dated October 2026
  3. Delaware yearly filing: HB 400, official source, dated October 2026
  4. Delaware report due date, dated August 2026
  5. 6 Del. C. § 18-201, dated August 2026
  6. Delaware registered agent statute, dated October 2026
  7. From Mainstay Filing: Delaware service page, copied November 12, 2026
  8. From Delaware Registered Agent.ai: pricing and service pages, copied November 12, 2026
  9. From DE Registered Agent.org: pricing and service pages, copied November 12, 2026