3 Best LLC Services in Delaware (2026): The Quick Answer
In Delaware for 2026, rank LLC formation services DE Registered Agent.org ($199), Mainstay Filing ($199) and Delaware Registered Agent.ai ($199). State fee: $110. Services over three years: $397 to $597.
LLC Q and A editorial team ·
Quick answers
State filing fee
$110, one time
After that
$400 yearly
Registered agent
Yes, the statute demands one
Pick
DE Registered Agent.org, Mainstay Filing then Delaware Registered Agent.ai
Annual LLC Tax: every year, $400. For timing, the state's own calendar reads: annual alternative-entity tax due on or before June 1, so plan ahead of it.
Three-year total = filing + report in year 2 + report in year 3 + minimum tax (if any). Fees without a fixed amount, like newspaper notices, are not summed.
Also asked
Who files the EIN application?
Only Mainstay Filing includes it. Elsewhere: DE Registered Agent.org $99, Delaware Registered Agent.ai $99.
What if the report is late?
A late report costs $200 more.
Three-year cost of each?
DE Registered Agent.org will run $397, Mainstay Filing will run $597, Delaware Registered Agent.ai will run $397, with state fees on top.
Where do the numbers come from?
State fees cite their official page; service prices come from the company's own site.
Do I have to hire one?
No law requires a service; it is a paid convenience.
Which LLC service should I use in Delaware?
DE Registered Agent.org: it opens at $199 including the first agent year and renews at $99. Behind it: Mainstay Filing and Delaware Registered Agent.ai.
Sources
Reference line for Delaware yearly filing: Recurring obligation, drawn from corp.delaware.gov and confirmed October 2026, as noted by our editors
Reference line for Delaware yearly filing: Recurring obligation, drawn from corp.delaware.gov and confirmed October 2026, as noted by our editors
Reference line for Delaware yearly filing: HB 400, drawn from legis.delaware.gov and confirmed October 2026, as noted by our editors
Reference line for Delaware report due date, drawn from delcode.delaware.gov and confirmed August 2026, as noted by our editors
Reference line for 6 Del, drawn from delcode.delaware.gov and confirmed August 2026, as noted by our editors
Reference line for Delaware registered agent statute, drawn from delcode.delaware.gov and confirmed October 2026, as noted by our editors
DE Registered Agent.org pricing page, read November 13, 2026
Mainstay Filing Delaware service page, read November 13, 2026
Delaware Registered Agent.ai pricing page, read November 13, 2026