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  • Wyoming LLC Formation · $297 + $100 state
  • Delaware LLC Formation · $297 + $110 state
  • New Mexico LLC Formation · $297 + $50 state
  • Nevada LLC Formation · $297 + $425 state
  • Anonymous LLC Formation · $397 all-in
  • EIN Acquisition · $99
  • ITIN Application · $299
  • BOI Initial Filing · $150
  • Registered Agent (Standalone) · $100/year

Pillars

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  • LLC Formation
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  • New Mexico LLC
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  • 50-state matrix

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Authors

  • Shafwan Ahmed — Operations
  • Fozlol Hoq — Banking
  • Alif Al Razi — Tax & Compliance
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Not legal, tax, or financial adviceAnonymousllc.co is a US business formation and compliance service operated by Topslice LLC. We are not a law firm, accounting firm, or financial advisor. Content on this site is for informational purposes only and does not constitute legal, tax, accounting, investment, or immigration advice. Tax positions (S-corp election, Form 5472, BOI reporting status, treaty benefits, ITIN eligibility) and legal structures (anonymity, charging-order protection, foreign qualification) depend on facts specific to your situation and the current state of statutes, regulations, and litigation. Consult a US-licensed attorney, CPA, or enrolled agent before acting on any specific recommendation. Pricing, processing times, and bank-approval rates are based on observed averages and are not guarantees. State filing fees and IRS processing times are set by government agencies and are subject to change without notice. See our Terms, Refund Policy, and Privacy Policy for the full engagement terms.
© 2026 Topslice LLC · anonymousllc.co · Anonymous LLC formation across Wyoming, New Mexico, Delaware, and Nevada.
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South Dakota Registered Agent Service ($100/year)

Every South Dakota LLC must maintain a registered agent with a physical address in South Dakota. Anonymousllc.co offers South Dakota registered agent service at $100/year — included free in year 1 of formation, $100/year renewal thereafter.

By Shafwan Ahmed, Operations & Fulfillment Lead · Last updated 2026-05-21

On this page

  1. What a registered agent does
  2. Why use Anonymousllc.co's South Dakota registered agent
  3. What's included
  4. Pricing
  5. Switching to Anonymousllc.co

What a registered agent does

A registered agent is the official point of contact for state and legal correspondence: service of process (lawsuits), state notices, annual report reminders, and tax notices. Must have a physical street address in South Dakota (not a PO Box) and be available during business hours.

Why use Anonymousllc.co's South Dakota registered agent

Using Anonymousllc.co as your registered agent keeps your personal address off public records. South Dakota state filings show our office, not your home. South Dakota requires either members or managers (or both) to be disclosed on public state records. Buyers who need true anonymity typically form in Wyoming, New Mexico, Delaware, or Nevada and foreign-qualify into South Dakota if local operations require it.

What's included

South Dakota street address for service of process. Mail scanning and forwarding. Annual report deadline reminders. Compliance notifications. Optional annual report filing assistance.

Pricing

$100/year flat. Included free in year 1 of any Anonymousllc.co formation package. Standalone registered agent (no formation) is $100/year — useful if you already have an LLC and want to switch agents.

Switching to Anonymousllc.co

If you already have a South Dakota LLC, you can switch registered agents at any time by filing a Statement of Change with the South Dakota Secretary of State. Anonymousllc.co handles the entire switch for $100 + state fee where applicable.

More on South Dakota LLCs

South Dakota LLC overview
/south-dakota-llc/
South Dakota LLC formation
/south-dakota-llc-formation/
South Dakota LLC cost
/south-dakota-llc-cost/
South Dakota annual report
/south-dakota-llc-annual-report/
South Dakota LLC tax
/south-dakota-llc-tax/
South Dakota operating agreement
/south-dakota-llc-operating-agreement/

South Dakota LLC FAQ

Other states

Wyoming LLC
/wyoming-llc/
New Mexico LLC
/new-mexico-llc/
Delaware LLC
/delaware-llc/
Nevada LLC
/nevada-llc/
South Carolina LLC
/south-carolina-llc/
Tennessee LLC
/tennessee-llc/
LLC Formation pillar guideAnonymous LLC service

Registered Agent service — $100/year

5-minute WhatsApp intake. 5-10 day turnaround.

Start on WhatsAppSee Registered Agent service