Is it cheaper to form an LLC in Oklahoma or South Dakota?

Oklahoma is cheaper at formation ($100) than South Dakota ($150). Ongoing costs are also different: $125 vs $155 per year. Total over three years: $475 vs $615.

Can I form an LLC in Oklahoma if I live in South Dakota?

Yes, but your South Dakota business will almost certainly need to register as a foreign LLC in South Dakota too, which means paying South Dakota's foreign registration fee and any ongoing South Dakota obligations on top of the Oklahoma ones. The "form elsewhere to save" math usually doesn't work for operating businesses; it only works when you have no physical operations tied to any specific state.

How long does it take to form an LLC in Oklahoma vs South Dakota?

Oklahoma online: 2 business days; South Dakota online: 1 business day. Oklahoma offers paid expedite from $25. South Dakota offers paid expedite from $50.

Which state has lower taxes for an LLC, Oklahoma or South Dakota?

Oklahoma: state income tax applies to member-level pass-through income, no entity-level franchise or LLC tax. South Dakota: no state income tax, no entity-level franchise or LLC tax.

Do both states require a registered agent?

Yes. Every US state (and DC) requires every LLC to maintain a registered agent with a physical street address in the state. Oklahoma and South Dakota both have this requirement. You can serve as your own agent if you live in the state; most out-of-state filers use a commercial agent for $50 to $125 per year.

Which state should I pick if I run an online business from home?

Form in the state you actually live in. Your home state's Department of Revenue treats your residence as nexus regardless of where the LLC is filed, which means you owe state income tax there anyway. Forming in Oklahoma or South Dakota to escape your home state's tax doesn't work; it adds paperwork. The non-resident filings make sense when you genuinely operate nowhere in particular: international founders, purely passive holding entities, or real-estate LLCs owning property in other states.

Oklahoma vs South Dakota LLC comparison

Oklahoma charges $100 to form an LLC; South Dakota charges $150. Day-one sticker price is only part of the story, since most of the real cost comes from the annual obligations that stack up each year you keep the LLC open.

Over a rolling three-year window, Oklahoma runs about $140 less in total state fees than South Dakota. Whether that gap matters depends on whether you actually operate in one of these states or are weighing a non-resident filing.

On speed, South Dakota typically clears standard online filings faster than Oklahoma. Both states offer expedited tiers at an additional cost for filers on tight timelines.

For most small operators the choice is not really between these two states at all. It is between forming where the business actually operates and trying to route through a non-resident filing. The data below shows what each option actually costs.

Formation filing fee

Oklahoma $100

South Dakota $150

Oklahoma saves $50

Year 1 total estimate

Oklahoma $225

South Dakota $305

Oklahoma saves $80

Ongoing per year

Oklahoma $125

South Dakota $155

Oklahoma saves $30

3-year total

Oklahoma $475

South Dakota $615

Oklahoma saves $140

Key differences at a glance

Oklahoma costs $50 less to form ($100 vs $150).
Oklahoma is $30 per year cheaper to maintain ($125 vs $155).
South Dakota has no state individual income tax; pass-through LLC income flows to members without a state layer. The other state does tax at the member level.

Where each state fits

For most filers, forming in the state you actually operate from is the right call. The side-by-side below shows where the two states meaningfully diverge.

What each state offers that the other does not

Only South Dakota

No state income tax

Both states

Online filing
Paid expedited tier
No entity-level franchise or LLC tax
No publication requirement
Operating agreement not statutorily required

Three-year cost, side by side

Rough estimate of the state-facing cost to form and keep an LLC through three years. Both totals include a $100 per year registered-agent estimate.

Oklahoma South Dakota

Year 1

$225

$305

Year 2

$350

$460

Year 3

$475

$615

Running total includes the one-time filing fee and annual ongoing costs (report fee or franchise tax plus a $100/year registered agent estimate).

What it costs under your specific situation

The table below runs the same LLC through four common scenarios. "Non-resident" rows assume a typical home-state foreign LLC registration adds about $200 per year of stacked cost; the real number depends on which state you live in and ranges from $50 to over $800 depending on jurisdiction.

Scenario	Year 1	Each year after	3-year total
You live in Oklahoma, business operates there No foreign LLC registration needed. You pay Oklahoma fees only.	$225	$125	$475
You live in South Dakota, business operates there No foreign LLC registration needed. You pay South Dakota fees only.	$305	$155	$615
Non-resident forming in Oklahoma with operations elsewhere You pay Oklahoma's fees plus a typical home-state foreign LLC registration of about $200 per year.	$425	$325	$1,075
Non-resident forming in South Dakota with operations elsewhere You pay South Dakota's fees plus a typical home-state foreign LLC registration of about $200 per year.	$505	$355	$1,215

Oklahoma vs South Dakota: full comparison

Dimension	Oklahoma	South Dakota
Online filing Can you file the formation document online?	Yes	Yes
Online approval time Standard, non-expedited	2 business days	1 business day
Expedited option Paid fast-track filing	$25	$50
Annual report Required in addition to tax	Required, $25	Required, $55
State-imposed annual tax Franchise, privilege, or LLC tax minimum	None	None
State income tax On pass-through LLC income at member level	Yes	No
Publication requirement Newspaper publication after formation	No	No
Operating agreement Required by state statute	Recommended, not required	Recommended, not required
Foreign LLC fee Cost to register as a foreign LLC in this state	$300	$750
State sales tax General statewide rate	4.5%	4.2%

Taxes in Oklahoma and South Dakota

How each state handles entity-level tax on LLCs. Pass-through classification means member-level income tax also applies at each member's residence state.

Oklahoma tax

No entity-level franchise tax on LLCs. State income tax applies to member-level pass-through income. Corporate rate 4.0%.

South Dakota tax

No entity-level franchise tax on LLCs. No state income tax.

Ongoing compliance

The recurring filings each state requires after formation.

Oklahoma

Annual report $25, due on your anniversary month. Registered agent required in Oklahoma.

South Dakota

Annual report $55, due on your anniversary month. Registered agent required in South Dakota.

Formation process, side by side

What actually happens from the moment you start filing to the moment you're in good standing. Use this as a checklist.

Oklahoma

Check business-name availability on the Oklahoma entity search.
Appoint a registered agent with a physical Oklahoma street address.
File Articles of Organization for Oklahoma Limited Liability Company (SOS Form 0073) for $100.
Wait for approval. Online typically 2 business days. Paid expedite from $25.
Adopt an operating agreement (recommended, not required by Oklahoma statute).
Apply for a federal EIN (free from the IRS).
Open a business bank account to separate personal and business finances.
File your first annual report and pay $25 when it comes due.

South Dakota

Check business-name availability on the South Dakota entity search.
Appoint a registered agent with a physical South Dakota street address.
File Articles of Organization (Domestic Limited Liability Company) for $150.
Wait for approval. Online typically 1 business days. Paid expedite from $50.
Adopt an operating agreement (recommended, not required by South Dakota statute).
Apply for a federal EIN (free from the IRS).
Open a business bank account to separate personal and business finances.
File your first annual report and pay $55 when it comes due.

Before you pick either state

A few things that apply no matter which state you choose. These trip up enough first-time filers that they're worth stating explicitly.

Registered agent is non-negotiable. Both Oklahoma and South Dakota (and every other US state) require every LLC to designate a registered agent with a physical street address in the state of formation. You can serve as your own agent if you live in the state; otherwise a commercial agent runs $50 to $125 per year. Using your own home address makes it part of the public record.

Forming elsewhere does not escape your home state's tax. If you live and operate a business from your home state, forming the LLC in Oklahoma or South Dakota does not avoid your home state's income tax. The moment you transact business at home, your home state requires a foreign LLC registration, and state tax liability follows your residence regardless of where the entity sits on paper.

EIN applications are free. The IRS issues Employer Identification Numbers directly at no cost. Any service charging you to "get your EIN" is reselling a free form submission. Single-member LLCs with no employees technically don't need one for federal tax, but nearly every bank requires an EIN to open a business account.

Operating agreement matters more than the state you pick. A well-drafted operating agreement governs member ownership, management, profit splits, buy-sell terms, and dissolution. Without one, your LLC runs on the state's default rules, which are rarely what you want. California, Maine, Missouri, and New York require a written one by statute; every other state treats it as strongly recommended.

Agency contacts

Oklahoma Secretary of State, Business Filing Department

Website: www.sos.ok.gov/business/default.aspx
Phone: (405) 522-2520
Email: webmaster@sos.ok.gov
Mail: 421 N.W. 13th, Suite 210, Oklahoma City, OK 73103
Hours: 8:00 AM to 5:00 PM Central, Monday to Friday

South Dakota Secretary of State - Business Services

Website: sdsos.gov
Phone: (605) 773-4845
Email: corpinfo@state.sd.us
Mail: Capitol Building, 500 East Capitol Avenue, Suite 204, Pierre, SD 57501-5070
Office: 215 E. Prospect Avenue, Pierre, SD 57501
Hours: 8:00 AM to 5:00 PM Central, Monday to Friday

Oklahoma Tax Commission

Website: oklahoma.gov/tax.html
Phone: (405) 521-3160
Mail: Oklahoma Tax Commission, 300 N. Broadway Avenue, Oklahoma City, OK 73102
Office: 300 N. Broadway Avenue, Oklahoma City, OK 73102
Hours: 7:30 AM to 4:30 PM Central, Monday to Friday

South Dakota Department of Revenue

Website: dor.sd.gov
Phone: (605) 773-3311
Mail: 445 E Capitol Avenue, Pierre, SD 57501
Hours: 8:00 AM to 5:00 PM Central, Monday to Friday

Frequently Asked Questions

Is it cheaper to form an LLC in Oklahoma or South Dakota?

Oklahoma is cheaper at formation ($100) than South Dakota ($150). Ongoing costs are also different: $125 vs $155 per year. Total over three years: $475 vs $615.
Can I form an LLC in Oklahoma if I live in South Dakota?

Yes, but your South Dakota business will almost certainly need to register as a foreign LLC in South Dakota too, which means paying South Dakota's foreign registration fee and any ongoing South Dakota obligations on top of the Oklahoma ones. The "form elsewhere to save" math usually doesn't work for operating businesses; it only works when you have no physical operations tied to any specific state.
How long does it take to form an LLC in Oklahoma vs South Dakota?

Oklahoma online: 2 business days; South Dakota online: 1 business day. Oklahoma offers paid expedite from $25. South Dakota offers paid expedite from $50.
Which state has lower taxes for an LLC, Oklahoma or South Dakota?

Oklahoma: state income tax applies to member-level pass-through income, no entity-level franchise or LLC tax. South Dakota: no state income tax, no entity-level franchise or LLC tax.
Do both states require a registered agent?

Yes. Every US state (and DC) requires every LLC to maintain a registered agent with a physical street address in the state. Oklahoma and South Dakota both have this requirement. You can serve as your own agent if you live in the state; most out-of-state filers use a commercial agent for $50 to $125 per year.
Which state should I pick if I run an online business from home?

Form in the state you actually live in. Your home state's Department of Revenue treats your residence as nexus regardless of where the LLC is filed, which means you owe state income tax there anyway. Forming in Oklahoma or South Dakota to escape your home state's tax doesn't work; it adds paperwork. The non-resident filings make sense when you genuinely operate nowhere in particular: international founders, purely passive holding entities, or real-estate LLCs owning property in other states.

Full state guides

OklahomaOpen Oklahoma LLC guide →
South DakotaOpen South Dakota LLC guide →

More Oklahoma and South Dakota comparisons

More Oklahoma vs ...

More South Dakota vs ...

Sources

Filing fee: www.sos.ok.gov/business/fees.aspx · verified April 21, 2026
Oklahoma Secretary of State Filing Fees schedule: Articles of Organization - Oklahoma LLC, Title 18 O.S. Section 2055, $100.00. Online and paper filings carry the same state fee. Credit card filings add a 4 percent service charge under Title 18 O.S. Section 1142. In-person same-day filing adds a $25 premium fee per document.
Filing fee: www.sos.ok.gov/forms/FM0074.PDF · verified April 21, 2026
SOS Form 0074 (Rev. 07/20) Procedures for Organizing an Oklahoma Limited Liability Company: filing fee of $100.00 under Title 18, Section 2055. Same-day in-person filings carry an additional $25 premium.
Expedited filing: www.sos.ok.gov/forms/FM0074.PDF · verified April 21, 2026
Oklahoma SoS SOS Form 0074 describes the only expedited option as a $25 same-day fee for documents delivered in person. There is no published mail-in or online expedite tier. Recorded as offered: true, fee $25, approvalHours 24 (effectively same-day for walk-ins). Title 18 O.S. Section 1142.
Annual report fee: www.sos.ok.gov/business/fees.aspx · verified April 21, 2026
Oklahoma SoS Filing Fees: Annual Certificates - Oklahoma/Foreign LLC, Title 18 O.S. Section 2055.2, $25.00. Due on the LLC's anniversary date each year.
Sales tax rate: www.salestaxhandbook.com/oklahoma · verified April 21, 2026
Oklahoma statewide sales and use tax rate is 4.5 percent under 68 O.S. Section 1354. Rate has been unchanged since 1990. Oklahoma Tax Commission sales tax page confirms the rate; Sales Tax Handbook used here as a stable public mirror.
Corporate income tax rate: taxfoundation.org/data/all/state/state-corporate-income-tax-rates-brac… · verified April 21, 2026
Oklahoma corporate income tax is a flat 4 percent on all taxable income under 68 O.S. Section 2355 (Tax Foundation 2025 State Corporate Income Tax Rates & Brackets). Reduced from 6 percent to 4 percent for tax years beginning on or after January 1, 2022.
Foreign LLC registration fee: www.sos.ok.gov/business/fees.aspx · verified April 21, 2026
Oklahoma SoS Filing Fees: Certificate of Registration - LLC (foreign), Title 18 O.S. Section 2055, $300.00. Foreign LLCs also owe an annual $25 Annual Certificate plus a $40 Annual Registered Agent Fee under 18 O.S. Section 2055.
Operating agreement requirement: oklahoma.gov/content/dam/ok/en/sos/forms/FM0074.pdf · verified April 21, 2026
Oklahoma Limited Liability Company Act (Title 18 O.S. Section 2012) permits but does not require an operating agreement, and does not require it to be in writing. No statutory mandate to adopt or file one. SOS Form 0074 Procedures for Organizing does not require an operating agreement as part of formation.
Filing fee: sdsos.gov/general-information/filing-fees.aspx · verified April 21, 2026
SD SoS filing fee schedule: Domestic LLC Articles of Organization filed electronically online is $150; filed via paper is $165 (includes the $15 paper filing fee). Online is the default; filingFee captures the online amount.
Expedited filing: sdsos.gov/general-information/filing-fees.aspx · verified April 21, 2026
SD SoS offers expedited processing for any filing at an additional $50 flat fee, defined as completion sooner than the normal course of business on request. Typical expedited turnaround is 24 hours.
Foreign LLC registration fee: sdsos.gov/general-information/filing-fees.aspx · verified April 21, 2026
Foreign LLC Certificate of Authority online filing fee is $750; paper is $765 (includes $15 paper filing fee). This is materially higher than the $150 domestic fee; South Dakota is one of the most expensive states for foreign LLC registration.
Operating agreement requirement: sdlegislature.gov/Statutes/47-34A · verified April 21, 2026
SDCL 47-34A (Uniform Limited Liability Company Act) defines an operating agreement under 47-34A-103 as any valid agreement, written or oral, governing relations among members, managers, and the LLC. The statute does not require the operating agreement to be in writing.
Publication requirement: sdlegislature.gov/Statutes/47-34A · verified April 21, 2026
SDCL 47-34A contains no newspaper publication requirement for LLC formation. Only NY, AZ, and NE require publication.
Annual report fee: sdsos.gov/general-information/filing-fees.aspx · verified April 21, 2026
SD SoS filing fee schedule: LLC Annual Report filed electronically online is $55; filed via paper is $70 (includes the $15 paper filing surcharge). Due first day of the anniversary month each year.
Franchise tax: dor.sd.gov/businesses/taxes/ · verified April 21, 2026
SD Department of Revenue confirms South Dakota does not impose a general corporate income tax or franchise tax. A narrow bank franchise tax applies only to financial institutions under SDCL 10-43.
Corporate income tax rate: dor.sd.gov/businesses/taxes/ · verified April 21, 2026
South Dakota has no corporate income tax. Field set to null.
Sales tax rate: dor.sd.gov/businesses/taxes/sales-use-tax/ · verified April 21, 2026
SD Department of Revenue: the state sales and use tax rate is 4.2%. Municipalities may impose up to 2% additional general sales tax.
Business name search: sosenterprise.sd.gov/BusinessServices/Business/FilingSearch.aspx · verified April 21, 2026
SD SoS Enterprise business information search. Use before filing Articles of Organization to confirm name availability.
Online filing portal: sosenterprise.sd.gov/BusinessServices/Business/RegistrationInstr.aspx · verified April 21, 2026
SD SoS Enterprise online business registration portal. Online LLC filings are typically approved immediately or within one business day; paper filings take about 3-5 business days plus mail transit.
Certificate of Formation form: sdsos.gov/docs/business/llc-domestic-articlesoforganization.pdf · verified April 21, 2026
Official Domestic LLC Articles of Organization fillable PDF published by the SD SoS, used for paper filings.

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