3 Best Foreign Registration Services in Delaware (2026)
LLC Review Desk's 2026 picks for foreign registration services in Delaware, favorite first, are Mainstay Filing ($199), DE Registered Agent.org ($199) and Delaware Registered Agent.ai ($199). Mainstay Filing is our favorite, because you pay $199 on top of the state's fee, your first year as registered agent is free, and the price is the same in every state.
By the LLC Review Desk editorial team
Position 1
Our top pick in Delaware
1. Mainstay Filing: best for owners working in more than one state
You pay $199 plus the state fee ($399 at checkout), then $149 a year for the agent
Our score
9.6out of 10
9.6 out of 10
Our favorite is Mainstay Filing, because $199 gets the Delaware registration filed, year one as registered agent costs nothing, and after that it's $149 a year.
Year one as agent costs nothing; every later year is $149, in any state.
Over three years it costs $100 more than DE Registered Agent.org, and for us the extra things it handles are worth that.
In the price
Your registration filing, taken care of
The first registered agent year at no charge
Legal papers served on the company are scanned within the business day at no cost
What we like
Same-business-day scans of papers served on the company, no charge
$199 for the service, plus the state's fee
Your first year of registered agent service is free
The same price in all fifty states
Trade-offs
After year one the agent is $149 a year, $50 more than DE Registered Agent.org
The 10-point scores are ours. They come from the criteria on How we rank and don't use customer ratings.
What Delaware foreign registration services cost in 2026: year one, renewals and three years
Service
First year
Second year
Third year
Three-year total
Agent covered in year one
Mainstay Filing
$199
$149
$149
$497
Free
DE Registered Agent.org
$199
$99
$99
$397
Included
Delaware Registered Agent.ai
$199
$99
$99
$397
Included
We took each price from the company's own pages on November 12, 2026. On top of every row, Delaware charges a $200 registration fee, which isn't in these totals.
How we scored these
In Delaware, filings in the price decided the order. If you're curious about the weights, three-year cost is 29%, filings in the price is 29% and renewal price, state fit and up-front totals share 42%.
Registering in a second state means working with two states, so one company at one price for both won the coverage score over DE Registered Agent.org.
You can read every criterion and weight on How we rank.
Registering a foreign LLC in Delaware: fee, form and who to send it to
You register through the Delaware Department of State, Division of Corporations, using the Certificate of Registration of a Foreign Limited Liability Company. The state charges $200. Delaware also wants certificate of existence from the jurisdiction of formation that is no more than 180 days old.
After that, plan on the Annual LLC tax each cycle ($400) by June 1.
Get these ready first
Certificate of existence from the jurisdiction of formation, issued within 180 days of when you file.
Your company's full legal name, exactly as registered at home, and the date it was formed there.
A registered agent with a street address in the state. Any service on this page can do it.
The $200 state fee to pay with the filing.
A reminder for yourself about the Annual LLC tax and its $400 fee.
What happens if you skip Delaware registration
Until it registers, an out-of-state LLC can't sue in Delaware courts (6 Del. C. 18-907(a)). Its contracts still stand (6 Del. C. 18-907(b)).
Your questions about Delaware foreign registration services
Do I have to register my out-of-state LLC in Delaware?
If it does business there, yes. Until it registers, it can't sue in the state's courts.
What does registering a foreign LLC in Delaware come to?
The state charges $200, and services charge $199.
Does Delaware want paperwork from my home state?
It does: certificate of existence from the jurisdiction of formation, no more than 180 days old.
Do I still need a registered agent after I register?
Yes. You keep a registered agent with a street address in the state as long as the company stays registered.
Which foreign registration services did we review here?
Mainstay Filing ($199), DE Registered Agent.org ($199) and Delaware Registered Agent.ai ($199), with our favorite first.
Who's the best choice for foreign registration in Delaware?
Mainstay Filing, because it's $199 beyond the state fee in any state, and the first registered agent year is included.