Best LLC Filing

Best LLC Filing › Delaware

Best LLC service in Delaware (2026)

Mainstay Filing is the best overall LLC service in Delaware. The state fee is $110 (Certificate of Formation of a Limited Liability Company, filed with the Delaware Secretary of State); with Mainstay Filing the three-year total is $1,507.

  • Official sources, checked October 20, 2026
  • Prices verified October 2026
Best overall in Delaware

Mainstay Filing

Our rating: 4.9 out of 5

$199 / year + $110 state fee

  • LLC formation, prepared and filed
  • Registered agent, all year
  • EIN application (with an SSN or ITIN)
  • Annual report filed every year it is due where the state requires one
  • Compliance reminders and stored documents

Price from the Mainstay Filing pricing and FAQ pages, checked October 21, 2026. State fees are passed through at cost and shown before you pay.

Best-for picks with Delaware costs

  1. Best overall: Mainstay Filing ($597 over 3 years; $1,507 over 3 years with Delaware costs). One $199 price a year covers the formation filing, registered agent, EIN application and annual report, and it stays $199 at renewal.
  2. Lowest first-year cost: Bizee ($0 for year 1 with an agent; $1,208 over 3 years with Delaware costs). Its entry package is $0 plus the state fee and the registered agent is free for the first year when you form with it. Why
  3. Lowest three-year cost: Northwest Registered Agent ($289 over 3 years; $1,199 over 3 years with Delaware costs). A $39 package with the agent included the first year, then a $125 agent, adds up to the smallest service total over three years. Why
  4. Lowest agent price after year 1: Northwest Registered Agent ($125 a year from year 2; $1,199 over 3 years with Delaware costs). Its registered agent renews at the lowest rate of the five. Why
  5. Most included in one price: Mainstay Filing ($199 a year, all-in; $1,507 over 3 years with Delaware costs). Formation, agent, EIN application and annual report filing share one yearly price; the others sell the agent, EIN or report filing separately. Why

Delaware rules that affect your choice

State filing fee
$110
Yearly report
No annual report. Every Delaware LLC pays a $400 annual tax by June 1 (raised from $300 starting with tax year 2026).
Registered agent
Required. The LLC itself, a Delaware resident, or a business entity formed in Delaware or authorized to do business there.

Questions

What is the best LLC service in Delaware?

Mainstay Filing. In Delaware it totals $1,507 over three years including the $110 filing fee, with the agent, EIN application and annual reports covered.

What is the cheapest way to start a Delaware LLC?

Filing yourself costs the $110 state fee and you still need a registered agent with a street address in the state. Among services, Bizee is lowest in year 1 and Northwest Registered Agent over three years.

Is a service worth it in Delaware?

Delaware requires a registered agent, which a service provides for you. A service can also file the Annual LLC Tax each time it is due.

Sources