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LLC Formation·Best Overall·Updated June 2026

Best LLC Formation Services in South Dakota

South Dakota charges a $150 online filing fee to form an LLC, and the Secretary of State processes filings immediately when submitted online.

June 202615 min read
Daniel Wong
Written byDaniel Wong
Legal & Compliance Analyst
6 services reviewed
Independently tested
Updated quarterly

How We Chose the Best LLC Services for South Dakota

South Dakota processes filings immediately at $150 and has no state income tax, which makes it a popular formation state. We tested how each service handled the instant confirmation process, the availability of Series LLCs, and the $50 annual report requirement. Our evaluation gave higher marks to providers that accurately positioned South Dakota's privacy protections relative to Wyoming and New Mexico rather than overstating them.

South Dakota has no personal or corporate state income tax. That single fact makes it one of the most attractive formation states in the country for pass-through entities like LLCs, and it is why out-of-state founders regularly form here instead of their home state.

12

Services Tested

200

Hours of Research

50

States Covered

June 2026

Last Updated

Quick Comparison of All 6 Services

Compare pricing and ratings at a glance, then visit a service or read the full review below.

Service
NR logo

Northwest Registered Agent

Best Overall
From $39
4.8
Get Started →Read review
ZB logo

ZenBusiness

Best for LLC Formation
From $0
4.5
Get Started →Read review
TB logo

Tailor Brands

Best for Branding
From $0
4.2
Get Started →Read review
FN logo

FileNow

Best for Speed
From $49
4.2
Get Started →Read review
SF logo

Swyft Filings

Best for Fast Filing
From $0
3.2
Get Started →Read review
LZ logo

LegalZoom

Most Recognized
From $0
2.8
Get Started →Read review

Full Reviews

1
NR logo
From $39
Best Overall

Northwest Registered Agent

A transparent LLC formation service that bundles a complete business identity (address, domain, email, phone, website) into a single $39 fee with no upsells.

4.8
Get Started

From $39 + state fees

Pricing Plans

Popular
$39

LLC Formation + Business Identity

+ state fees

  • Preparation and filing of Articles of Organization
  • 1 full year of Registered Agent service included
  • Operating Agreement draft

Northwest Registered Agent is our top pick for LLC formation. Their $39 package now includes what they call a Business Identity: a business address, domain name, website with hosting, email, phone service, and mail scanning, on top of the formation filing and a year of registered agent service. No tiered plans, no upsell games during checkout. They are a family-owned, privately held company with U.S.-based Corporate Guides who actually know what they are talking about. The dashboard is more utilitarian than polished, but that is a fair tradeoff for the most complete formation package at this price.

Pros

  • Flat $39 formation fee with no tiered packages or hidden add-ons.
  • Full Business Identity included: business address, domain, email, website, and phone service.
  • Free year of registered agent service with privacy protection.
  • Free mail scanning (up to 5 documents) and renewal reminders.
  • Same-day filing with no extra rush fees.
  • U.S.-based Corporate Guides who actually answer the phone.

Cons

  • Customer support is not available on weekends.
  • Online cancellation process can be cumbersome.
  • Trial digital services auto-renew if you forget to cancel.

Best For: Founders who want a complete business setup (formation, address, domain, email, website, phone) in one flat-fee package with no upsells.

Read full review
Get Started

From $39 + state fees

2
ZB logo
From $0
Best for LLC Formation

ZenBusiness

ZenBusiness offers a phenomenal $0 base plan and an incredibly intuitive dashboard, making it our top recommendation for first-time founders.

4.5
Get Started

From $0 + state fees

Pricing Plans

$0

Starter

+ state fees

  • Name availability search
  • Articles of formation filing
  • Electronic document access
Popular
$199/yr

Pro

+ state fees

  • All Starter features
  • 1-day rush processing
  • Operating agreement template
$399/yr

Premium

+ state fees

  • All Pro features
  • Business document templates
  • Registered Agent service

ZenBusiness offers the smoothest LLC formation experience available. The guided setup walks first-time founders through every step, and the $0 Starter plan only requires you to pay state fees. The dashboard sends compliance reminders so you do not miss deadlines. Watch for pre-checked upsells during checkout that trigger recurring annual costs, and know that the Pro plan renewal jumps to $199/year. A strong choice if you want a polished, beginner-friendly formation process.

Pros

  • $0 Starter plan requiring only state filing fees
  • Highly intuitive dashboard that simplifies the formation process
  • Responsive support team available on Sundays
  • First year of Worry-Free Compliance included for free
  • Excellent mobile app for managing your business on the go

Cons

  • Heavy push for add-on services during the checkout process
  • Registered agent and compliance renewals become expensive after the first year
  • Difficult-to-cancel auto-renewing subscriptions

Best For: First-time founders needing an easy, guided, and affordable LLC setup

Read full review
Get Started

From $0 + state fees

3
TB logo
From $0
Best for Branding

Tailor Brands

Tailor Brands combines free LLC filing with brilliant design tools to help you launch your business in record time.

4.2
Get Started

From $0 + state fees

Pricing Plans

$0

Lite

+ state fees

  • Filing of Articles of Organization
  • Standard processing
  • Business coaching program access
Popular
$199/yr

Essential

+ state fees

  • Everything in Lite
  • Expedited 2-day processing
  • Operating agreement creation
$249/yr

Elite

+ state fees

  • Everything in Essential
  • 1-year free domain hosting
  • AI-powered website builder

Tailor Brands is a fantastic choice for first-time founders who want to build a cohesive brand alongside their legal entity. The platform pairs a $0 LLC formation tier with incredibly intuitive logo and website builders. The main drawback is the heavy push toward recurring subscriptions and expensive basic add-ons during checkout. We highly recommend this service if you want a true all-in-one business launchpad and prefer having everything in one dashboard.

Pros

  • Free Lite plan covers basic LLC formation and standard processing
  • Extremely intuitive and beginner-friendly dashboard design
  • Incredible built-in tools for designing logos and launching websites
  • Helpful customer support available during the weekend
  • Guided step-by-step questionnaire simplifies the setup process

Cons

  • Pricing tiers are hidden until the end of the initial questionnaire
  • Pre-checked $39 monthly bookkeeping free trial requires manual cancellation
  • Steep $199 annual fee for Registered Agent services

Best For: First-time founders wanting an all-in-one platform for LLC formation and seamless branding.

Read full review
Get Started

From $0 + state fees

4
FN logo
From $49
Best for Speed

FileNow

FileNow guarantees 24-hour processing on all orders, but its lack of a free entry-level plan makes it less competitive for founders on a strict budget.

4.2
Get Started

From $49 + state fees

Pricing Plans

$49

Starter

+ state fee

  • Filing Articles of Organization / Incorporation
  • Unlimited Phone & Email Support
  • Electronic Delivery of State Documents
Popular
$199

Premium

+ state fee

  • Filing Articles of Organization / Incorporation
  • Unlimited Phone & Email Support
  • Electronic Delivery of State Documents

FileNow delivers a remarkably fast and straightforward LLC formation experience. We appreciate that 24-hour processing is standard across all plans instead of being an expensive add-on. The checkout process is completely transparent with zero pre-checked upsells or hidden fees. However, because the base plan costs $49 and does not include a registered agent, budget-conscious founders might prefer cheaper alternatives.

Pros

  • 24-hour order processing included on all plans at no extra cost
  • Transparent pricing with zero hidden fees or pre-checked subscriptions
  • Simple two-tier pricing makes choosing a package easy
  • Premium plan provides excellent value by bundling essential startup documents
  • Customer support is accessible via phone, chat, and email

Cons

  • No free formation tier available
  • Starter plan does not include registered agent service
  • Lacks advanced legal tools and ongoing compliance dashboards

Best For: Entrepreneurs who prioritize fast 24-hour processing and straightforward, transparent pricing.

Read full review
Get Started

From $49 + state fees

5
SF logo
From $0
Best for Fast Filing

Swyft Filings

Swyft Filings offers exceptionally fast processing speeds, but you must navigate a minefield of expensive upsells during checkout.

3.2
Get Started

From $0 + state fees

Pricing Plans

$0

Basic

+ state fees

  • Preparation and filing of LLC documents
  • Business name availability check
  • Standard processing (7-10 business days)
Popular
$199

Standard

+ state fees

  • Everything in Basic
  • Federal Tax ID (EIN) obtainment
  • Custom Operating Agreement
$299

Premium

+ state fees

  • Everything in Standard
  • Expedited processing (1 business day)
  • 2 months of unlimited attorney consultations

Swyft Filings lives up to its name by offering some of the fastest LLC formation times on the market. Their 5-step setup process is simple and easy for beginners to understand. However, their aggressive upsells and missing registered agent service make their $0 starting price highly deceptive. We recommend them only if you desperately need same-day processing and know exactly which add-ons to decline.

Pros

  • Exceptionally fast processing speeds
  • Streamlined 5-step application interface
  • Knowledgeable and responsive phone support
  • Basic package starts at $0 plus state fees
  • No confusing legal jargon during setup

Cons

  • Registered agent service costs an extra $149 per year
  • Aggressive multi-page upsell flow
  • Difficult cancellation process for ongoing subscriptions

Best For: Founders needing fast turnaround who can navigate heavy upsells.

Read full review
Get Started

From $0 + state fees

6
LZ logo
From $0
Most Recognized

LegalZoom

A famous name with an aggressive checkout process and expensive recurring fees.

2.8
Get Started

From $0 + state fees

Pricing Plans

$0

Basic

+ state filing fees

  • Articles of organization filing
  • Business name availability check
  • Digital welcome packet
Popular
$249

Pro

+ state filing fees

  • Everything in the Basic package
  • Operating Agreement
  • EIN registration
$299

Premium

+ state filing fees

  • Everything in the Pro package
  • Business attorney guidance (30-day subscription)
  • Bookkeeping tools (6-month subscription)

LegalZoom relies heavily on its brand recognition to charge premium prices for basic services. While the platform is easy to navigate and offers excellent legal document libraries, the checkout process is a maze of expensive upsells and auto-renewing trials. We do not recommend it if you are on a budget. You will end up paying significantly more for registered agent and compliance services than you would with competitors.

Pros

  • Highly intuitive platform that is easy for absolute beginners to navigate.
  • Access to a massive library of legal documents and forms.
  • Long-standing brand reputation provides reliability and peace of mind.
  • Customer support is available seven days a week.
  • Basic LLC formation is free excluding mandatory state fees.

Cons

  • Incredibly aggressive upselling for simple tasks like obtaining an EIN.
  • Registered agent fees are heavily inflated at $249 per year.
  • Checkout includes pre-selected free trials that auto-renew at high prices.
  • Standard processing times are slow unless you pay a $99 expedite fee.

Best For: Founders prioritizing brand recognition and access to an extensive legal document library.

Read full review
Get Started

From $0 + state fees

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What Makes a Good LLC Service for South Dakota Founders

South Dakota allows Series LLCs, which let you create separate liability-protected divisions under one parent LLC without filing additional entities. This is useful if you plan to hold multiple rental properties or business lines under one structure.

Unlike Wyoming and New Mexico, South Dakota does not offer anonymous LLCs. Your name will appear on the public Articles of Organization filed with the Secretary of State. If privacy is your main concern, Wyoming is a better fit.

The $55 annual report is due before the first day of your formation anniversary month each year. Miss it and you will face a $55 penalty, with eventual administrative dissolution if you stay delinquent. Compared to Wyoming's $60 annual report, South Dakota's ongoing costs are slightly lower.

Foreign LLC registration in South Dakota costs $750, which is among the highest in the country. If you already have an LLC in another state and want to register it here, expect to pay five times more than the domestic formation fee.

What to Do After You File Your South Dakota LLC

  1. Get your EIN from the IRS. This is free and can be done online at irs.gov. You need it to open a business bank account and hire employees.
  2. Appoint a registered agent with a physical South Dakota address. Your agent must be a state resident or a business entity authorized to operate in South Dakota. A P.O. Box does not qualify.
  3. File your Annual Report before the first day of your formation anniversary month each year. The fee is $55, and late filings trigger an additional $55 penalty.
  4. Draft an operating agreement. South Dakota does not legally require one, but banks and lenders will ask for it when you open accounts or apply for financing.
  5. Check whether your city or county requires a local business license. South Dakota has no general state business license, but municipalities like Sioux Falls and Rapid City have their own permit requirements.
  6. File your Beneficial Ownership Information (BOI) report with FinCEN. LLCs formed in 2024 or later must file within 90 days of formation.

South Dakota LLC Tax Overview

South Dakota has no personal income tax and no corporate income tax. Your LLC profits pass through to your federal return only, which means South Dakota LLCs avoid the state-level tax hit that eats into margins in neighboring states like Minnesota (9.85% top rate) and Iowa (5.7% flat rate).

Hidden Costs to Watch Out For in South Dakota

  • Foreign LLC Registration Is $750 - If you are registering an out-of-state LLC to do business in South Dakota, you will pay five times the domestic formation fee.
  • Late Annual Report Penalty Is $55 - Miss your filing deadline and the state charges a penalty equal to the full annual report fee, effectively doubling your cost to $110.
  • Reinstatement After Dissolution Is $150 Plus Back Fees - If your LLC is administratively dissolved for missing annual reports, reinstatement costs $150 on top of every delinquent annual report fee you owe.
  • Name Reservation Costs $25 - If you want to hold your LLC name for up to 120 days before filing, the Secretary of State charges a $25 reservation fee.

Frequently Asked Questions About South Dakota LLCs

How much does it cost to form an LLC in South Dakota?

The South Dakota Secretary of State charges a $150 filing fee for online LLC formation. If you need faster handling, expedited processing is available for an additional $50 and returns results within 24 hours, though standard online filings are already processed immediately.

Does South Dakota require a registered agent?

Yes. Every South Dakota LLC must have a registered agent who is either an individual resident of the state or a business entity authorized to operate in South Dakota. The agent must have a physical street address in the state. A P.O. Box is not acceptable.

How long does LLC formation take in South Dakota?

Online filings with the South Dakota Secretary of State are processed immediately. If you file through a formation service, your total turnaround depends on how quickly the service submits your paperwork. Most services file within 1 to 3 business days.

Does South Dakota have a state income tax for LLCs?

No. South Dakota has no personal income tax and no corporate income tax. Your LLC profits are only subject to federal income tax. This makes South Dakota one of the most tax-friendly states for LLC formation, alongside Wyoming, Texas, and Florida.

About the Author

Daniel Wong
Daniel Wong

Legal & Compliance Analyst

Daniel grew up in the shadow of Silicon Valley but chose the legal route over engineering, working as a paralegal for a corporate law firm specializing in mergers and acquisitions. He realized that early-stage founders were constantly making catastrophic legal mistakes because they couldn't afford a $500/hour attorney, prompting his move to B2B media.

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