3 Best LLC Services in Delaware (2026): The Straight Story
If you need LLC formation services in Delaware in 2026, here's the order we'd go in: DE Registered Agent.org ($199), Mainstay Filing ($199) and Delaware Registered Agent.ai ($199). Whoever you pick, Delaware charges $110 to file, and the services run $397 to $597 over three years.
Straight from the LLC Straight Talk editorial team
Quick facts
The short of it
What the state charges
$110, one time
After that
$400 a year
Registered agent
Yes, it's the law
Who we'd use
DE Registered Agent.org, Mainstay Filing then Delaware Registered Agent.ai
There's one filing that keeps coming back: the Annual LLC Tax, yearly, for $400. In the state's own words it's due annual alternative-entity tax due on or before June 1.
You can. Skip the service and your three-year bill is the state's $910.
That $397 to $597 over three years is what you pay somebody else to deal with the paperwork and the agent role.
Why this order?
DE Registered Agent.org takes money out the door in three years, which counts 35%.
We run five tests: money out the door in three years (35%), jobs the price actually covers (30%), no hunting for the price (14%), no surprise at renewal (11%) and where it works (10%).
Go with DE Registered Agent.org and you'll pay $397 over three years, $200 less.
Here's how we got the last row: filing fee + two reports + minimum tax, if there is one. Costs with no set price aren't in it.
More questions
Who handles the EIN?
Only Mainstay Filing throws it in. At the others it's $99 (DE Registered Agent.org) and $99 (Delaware Registered Agent.ai).
Is there a late fee?
Delaware adds $200.
What do the picks cost over three years?
DE Registered Agent.org will set you back $397, and Mainstay Filing will set you back $597, and Delaware Registered Agent.ai will set you back $397, before state fees.
Where do these numbers come from?
Each state fee links to its official page, and each service price comes from the company's own site.
Do I have to use a service?
No law says you need a service. It's a convenience you pay for.
Who should I use for a LLC service in Delaware?
DE Registered Agent.org is first: it starts at $199 with the first agent year thrown in, and from year two you pay $99. Then comes Mainstay Filing and Delaware Registered Agent.ai.