3 Best Registered Agents in Wisconsin (2026), and What to Know First
In Wisconsin for 2026, our answer on registered agents is Mainstay Filing ($149 a year), WI Registered Agent.org ($99 a year) and Wisconsin Registered Agent.co ($99 a year), ranked from first to last. Year one runs $99 to $149, and three years add up to $297 to $447.
Answered by the Ask About LLC editorial team ·
The short answers
Is an agent required?
Yes, the law says so
Title in the statute
Registered agent
Typical agent price
$99 to $149 per year
Our pick
Mainstay Filing, WI Registered Agent.org then Wisconsin Registered Agent.co
Who should you ask in Wisconsin?
The order follows our five questions: three-year cost first, then how much the price covers.
1Our first answer
1. Mainstay Filing: best for one price in any state
Annual price $149, renewal price $149
Why Mainstay Filing at the top? It costs $149 a year with no change by state, and renews at $149.
Is it the smallest bill? No: WI Registered Agent.org is $150 less over three years, but it works in Wisconsin only.
What the price covers
A street address on file here
Three official mailings scanned each year for free
Not just LLCs: corporations, LPs, LLPs and nonprofits too
Service fees only, from each company's prices on November 13, 2026. State fees are the same whichever you pick.
Questions owners ask
Can the LLC go without a registered agent?
Every LLC must name a registered agent with an in-state street address.
The law behind it: Wis. Stat. § 183.0115. docs.legis.wisconsin.gov, read in October 2026 for this answer
Can I name anyone?
A Wisconsin resident, or a business entity formed in Wisconsin or authorized there, whose business office is the registered office. The agent needs an email address and has to consent.
If you meet the rule, name yourself and pay no agent fee.
How much does an agent cost?
Our picks charge $99 to $149 annually, and three years total $297 to $447.
Your choice of agent does not change any state fee.
Why does the state want an agent?
Think of it as the LLC's mailbox in Wisconsin for court papers and government letters.
A good agent tells you quickly when something arrives, which is worth asking about before you sign up. Service of process, explained
Is anything else due every year?
After formation you owe the annual report every year ($25). Be ready by this date, per the state: end of the calendar quarter containing the LLC's anniversary date.
How was the bottom line figured? Add the filing fee, the next two reports and the minimum tax if the state has one. Anything with no fixed price, a newspaper notice for instance, is described above and kept out of the sum.
Questions people also ask
Is it allowed to name myself?
Often you can. If your address and status match what the state demands, nothing stands in the way.
Which addresses does the state accept?
The address has to be an actual physical location with a street address in Wisconsin, not solely a P.O. box, mailbox service or answering service.
What do the picks cost over three years?
For three years you would pay $447 at Mainstay Filing, $297 at WI Registered Agent.org, $297 at Wisconsin Registered Agent.co
Are the fees official?
Each state fee links to its official page, and each service price is read from the company's own site.
Do I have to use a service?
Not at all. The state takes filings from owners directly. A service just saves you time, and it can double as your agent.
Who should I ask first about a registered agent in Wisconsin?
Mainstay Filing, because a single account at $149 a year works in whichever state the LLC registers. After that, WI Registered Agent.org and Wisconsin Registered Agent.co.
Sources for this answer
Our answer on Wisconsin Department of Financial Institutions rests on dfi.wi.gov, a page we confirmed August 2026 and still point you to
Our answer on Wisconsin Department of Financial Institutions rests on dfi.wi.gov, a page we confirmed August 2026 and still point you to
Our answer on Wisconsin report due date rests on docs.legis.wisconsin.gov, a page we confirmed August 2026 and still point you to
Our answer on Wis rests on dfi.wi.gov, a page we confirmed August 2026 and still point you to
Our answer on Wisconsin formation fee: Filing fee rests on dfi.wi.gov, a page we confirmed October 2026 and still point you to
Our answer on Wisconsin registered agent statute rests on docs.legis.wisconsin.gov, a page we confirmed October 2026 and still point you to
The Mainstay Filing Wisconsin service page, as it stood on November 13, 2026
The WI Registered Agent.org pricing page, as it stood on November 13, 2026
The Wisconsin Registered Agent.co pricing page, as it stood on November 13, 2026