How to Form an LLC in South Dakota (2026 Guide)
Everything you need to form a South Dakota LLC: state filing fee ($150), processing time (5-7 business days), annual compliance, taxes, and the exact 7-step process. Reviewed by IRS Enrolled Agents.
To form an LLC in South Dakota, file the Articles of Organization with the South Dakota Secretary of State (fee: $150), appoint a registered agent with a South Dakota street address, obtain an EIN from the IRS, and adopt an operating agreement. Standard processing takes 5-7 business days. The annual annual report is $50, due First day of anniversary month. With Gullia Filing, total first-year cost is $349 (all-inclusive: state fee, registered agent, EIN, operating agreement).
South Dakota LLC Cost Breakdown
Total transparent pricing for forming and maintaining a South Dakota LLC. No surprise upsells, no hidden fees.
| Item | Cost | Notes |
|---|---|---|
| South Dakota SoS filing fee | $150 | One-time, paid to the state |
| Registered agent (year 1) | Included | Included free in every Gullia package |
| EIN (Federal Tax ID) | Included | Filed with the IRS, no extra charge |
| Operating agreement | Included | Attorney-reviewed, state-compliant |
| Gullia Filing Starter service fee | $149 | Flat fee, no upsells |
| Total first-year cost | $349 | All-inclusive, no surprises |
| Recurring: Annual Report | $50/yr | Due First day of anniversary month |
The 7-Step South Dakota LLC Formation Process
Every South Dakota LLC follows the same core process. Here is exactly what happens, in order, and what Gullia Filing handles on your behalf.
Choose a South Dakota LLC name
Pick a name that includes "LLC", "L.L.C.", or "Limited Liability Company" and is distinguishable from existing South Dakota entities. Our free name check tool verifies availability against the South Dakota Secretary of State database in seconds.
Appoint a South Dakota registered agent
South Dakota requires a registered agent with a physical street address in the state to receive legal and tax notices. Gullia Filing provides this service in every package, protecting your privacy and ensuring you never miss a critical filing.
File the Articles of Organization
Submit formation paperwork to the South Dakota Secretary of State with a $150 filing fee. The state does not offer expedited processing. We handle the filing electronically and forward your certified copy within 5-7 business days.
Obtain your EIN (Federal Tax ID)
Apply to the IRS for an Employer Identification Number, required to open a US business bank account, hire employees, and file federal taxes. Included free in every Gullia Filing package.
Draft an operating agreement
An operating agreement establishes member rights, profit distributions, management structure, and dispute resolution. Even single-member LLCs benefit from having one on file for bank account opening and to reinforce the corporate veil. We provide a state-compliant, attorney-reviewed template in every package.
Register for South Dakota taxes and licenses
Register with the South Dakota Department of Revenue for state tax IDs, sales tax permits if applicable, and any industry-specific licenses. Our compliance calendar tracks every deadline automatically.
Open a US business bank account
With your EIN, Articles of Organization, and operating agreement, you can open a US business bank account. We provide bank-ready document packages and can introduce you to fintech partners that accept remote onboarding.
South Dakota LLC Tax Obligations
State tax summary
No state personal or corporate income tax. Sales tax of 4.5% on most goods and services.
Franchise tax: No franchise tax. No state income tax.
Federal tax defaults
A single-member South Dakota LLC is treated as a disregarded entity federally (income flows to Schedule C or E of the owner's Form 1040). A multi-member LLC defaults to partnership taxation (Form 1065). You may elect S-Corp status (Form 2553) or C-Corp status (Form 8832) if it reduces overall tax.
See tax and accounting servicesWhy form your LLC in South Dakota
- No state income tax on LLC members — pass-through income is federally taxed only.
- Top US jurisdiction for asset protection trusts and dynasty trusts (perpetual duration allowed).
- Series LLC available with strong statutory protection.
Things to watch for in South Dakota
- Small population means limited local talent and customer base — best for LLCs that operate nationally or online.
- South Dakota's sales tax applies to services (including consulting) — factor this if you have SD-sourced service revenue.
Top industries for South Dakota LLCs
Gullia Filing vs Alternatives (South Dakota)
The state filing fee is the same everywhere. What differs is the service fee, what is included, and how transparent the pricing is.
| Provider | Base service fee | Registered agent Y1 | EIN included | Operating agreement | Total first year |
|---|---|---|---|---|---|
| Gullia Filing (Starter) | $149 | Included | Yes (free) | Yes (attorney-reviewed) | $299 |
| DIY (file yourself) | $0 | $50-150 or self | Self (free) | No (buy separately) | $150+ |
| Bizee (Silver) | $0 + upsells | Free Y1, $119/yr after | Upsell ($70) | Upsell ($99) | $319+ |
| LegalZoom (Basic) | $249 | Upsell ($299/yr) | Upsell ($79) | Upsell ($99) | $876+ |
| Northwest RA | $39 | $125/yr | Upsell ($200) | Yes (template) | $514+ |
| ZenBusiness (Starter) | $0 + $199/yr | Free Y1, $199/yr after | Upsell ($99) | Upsell ($99) | $349+ |
Comparison based on publicly available pricing as of 2026. State filing fee ($150) is paid to South Dakota and identical across providers. Verify current pricing directly with each provider before purchasing.
Frequently Asked Questions
The most common questions about forming an LLC in South Dakota, answered by our Enrolled Agents.
Compare South Dakota to nearby states
Ready to form your South Dakota LLC?
Flat $149 service fee. State fee $150 paid directly to South Dakota. EIN, registered agent, and operating agreement included. No upsells, no surprises.