Is it cheaper to form an LLC in South Dakota than New Mexico?

No. South Dakota costs more upfront ($150 vs $50), and if you operate in New Mexico you must also register there as a foreign LLC ($100) plus pay a South Dakota registered agent. Realistic first-year cost is roughly $400 versus $50 for forming locally.

Can I form my New Mexico business in South Dakota?

Yes. Any New Mexico business can form its LLC in South Dakota. But if the business operates in New Mexico, it must also register there as a foreign LLC ($100 filing fee) and maintain a registered agent in South Dakota, so you take on two states' fees and filings instead of one.

Does South Dakota have better asset protection than New Mexico?

Not meaningfully. Both states provide charging-order protection for LLC members, and neither offers a decisive asset-protection edge for a typical small business. Sound insurance and clean separation of business and personal finances matter more in practice.

State Comparison

New Mexico LLC vs South Dakota LLC (2026)

Written for owners based in New Mexico.

Verdict: for most owners, form where the business is based

South Dakota adds a flat $15 paper-filing fee to anything that could have been filed online, so the Articles of Organization are $150 or $165 and the annual report $55 or $70 depending only on how you send it. That report is tied to the anniversary month today, but South Dakota law changes on January 1, 2027 to let a company choose January 31 instead. New Mexico has no report and one online channel at $50. Note too that South Dakota charges an out-of-state LLC $750 to register, where New Mexico charges $100.

Based in South Dakota? Read South Dakota LLC vs New Mexico LLC →

Compare New Mexico LLC vs South Dakota LLC on filing fees, taxes, privacy laws, and annual costs. Find out which state is actually better for your business.

By Edmond Hui · Last updated: September 23, 2026

If your business is based in New Mexico, a New Mexico LLC needs no foreign registration there; a South Dakota LLC run from New Mexico generally must also register in New Mexico as a foreign LLC (New Mexico's $100 filing fee). If your business is based in South Dakota, a South Dakota LLC needs no foreign registration there; a New Mexico LLC run from South Dakota generally must also register in South Dakota as a foreign LLC (South Dakota's $750 filing fee). An LLC formed in one of these states and run from the other owes whatever filings, fees and taxes each state requires. A New Mexico LLC runs $50 in year one and $0/yr after; a South Dakota LLC runs $205 and $55/yr. See the full breakdown below.

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Factor	New Mexico	South Dakota
Filing Fee	$50	$150
Processing Time	Not published by the state	Not published by the state
Annual Report Fee	None	$55
Annual Report Due	None required	Anniversary month
State Income Tax	Yes	No
Anonymous LLC	Yes	No
Publication Requirement	No	No
Foreign LLC Cost (if forming out-of-state)	N/A, you're in your home state	$100 + registered agent ~$150/yr

Full fee breakdown for either state: New Mexico LLC cost and South Dakota LLC cost. Owner privacy options for either state: New Mexico anonymous LLC guide and South Dakota anonymous LLC guide.

Business Climate: New Mexico vs South Dakota

Factor	New Mexico	South Dakota
5-year business survival rate	46.3% (#46 of 51)	52.7% (#19 of 51)
Business application growth (2026 YTD (Jan to Jul) vs 2025 YTD (same months))	+12.6% YoY (#37 of 51 by volume)	+15.4% YoY (#47 of 51 by volume)

Sources: U.S. Bureau of Labor Statistics, Business Employment Dynamics · U.S. Census Bureau, Business Formation Statistics (BFS)

See the full 50-state survival ranking.

Compare LLC Costs: New Mexico vs South Dakota

State A

State B

New Mexico

✓ Cheaper Upfront✓ Cheaper Long-Term

Formation fee$50

Annual report feeNo report required

State entity taxNone

Report dueNone required

Processing timeNot published by the state

Late penaltyNo report to file late

South Dakota

Formation fee$150

Annual report fee$55

State entity taxNone

Report dueAnniversary month

Processing timeNot published by the state

Late penalty$55

Total Cost

New Mexico

South Dakota

1 Year

$50

$205

3 Years

$50

$315

5 Years

$50

$425

Will you operate outside your home state?

A figure shown as "from" is the least the state can charge, not a price. Tennessee's report is $300 for up to six members and $50 for each member above six, its franchise tax is the greater of $100 or 0.25% of Tennessee net worth, Wyoming's report is the greater of $60 or $.0002 per dollar of in-state assets, Kentucky's entity tax is $175 up to $3 million of gross receipts and graduated above it, and New York's annual filing fee is graduated on New York source gross income. A total that contains one of those is shown as "from" for the same reason. Costs include every mandatory state charge: the filing fee, the report fee (annualised where a state files biennially), any state entity-level tax shown in its own row above, a one-time publication cost where the state publishes a rate for it, and any one-time registration charge a state requires before the LLC may trade. Two exclusions follow from that wording. Arizona and Nebraska require publication and publish no rate, so no newspaper cost is carried for either and their totals are not the whole cost. Alaska's $50 annual state business licence is a separate charge from the Secretary of State fees and is not carried here either. Annualising makes the 1, 3 and 5 year rows a cost of ownership rather than a payment schedule: a biennial state charges its whole report fee in the years it falls due and nothing in between. Entity-level taxes that only apply after a corporate election, or above an owner or income threshold, are excluded and flagged on the state's own cost page. New York's publication cost is carried at a $250 floor, roughly $200 of newspaper cost in a low-cost county plus the $50 Certificate of Publication fee. No county-clerk-designated New York City newspaper publishes a rate card, so the four-figure NYC estimates in wide circulation cannot be traced to a primary source and are not asserted here; budget for materially more than the floor if you file in a NYC county. Every fee was verified against the state's own fee schedule, statute, or revenue authority on 29 July 2026. Excludes registered agent and legal fees. For informational purposes only, not legal or tax advice.

Filing Fees & Formation Costs

New Mexico charges $50 to form an LLC, while South Dakota charges $150. New Mexico is $100 cheaper upfront. The cost that usually gets overlooked: if you form in South Dakota but operate in New Mexico, you must also register as a foreign LLC in New Mexico (a $100 filing) and maintain a registered agent in South Dakota (typically around $150 per year). That puts the realistic first-year cost of the South Dakota route at roughly $400, versus $50 for simply forming in New Mexico. Speed isn't a basis for choosing between them: neither New Mexico nor South Dakota publishes a standard processing time, so any figure comparing the two is guesswork.

Taxes: New Mexico vs South Dakota

South Dakota has no personal income tax while New Mexico does, but forming your LLC in South Dakota won't change that. LLC profits pass through to you and are taxed where you live and operate (in New Mexico), not where the LLC is registered, so a South Dakota LLC offers no income-tax savings for a New Mexico-based business. Neither state imposes a separate franchise or privilege tax on LLCs beyond standard filing fees.

Privacy & Asset Protection

New Mexico, your home state, actually offers more formation privacy than South Dakota: New Mexico allows anonymous LLC formation, while South Dakota requires owner or manager information on public filings. South Dakota's annual report confirms the LLC's ownership/management each year on the public record. Both states provide charging-order protection for LLC members, and for most small businesses the practical difference in asset protection between the two is minimal. From a privacy standpoint there's no reason for a New Mexico-based business to form in South Dakota.

Annual Maintenance Costs

New Mexico LLCs file no annual report at all, and South Dakota LLCs file an annual report ($55, due in the anniversary month). If you form in South Dakota while operating in New Mexico, you maintain filings in both states, South Dakota's report, though New Mexico asks for nothing on the foreign-registration side, and pay a South Dakota registered agent roughly $150 per year. Counting report fees, the agent and any entity-level tax, that brings the South Dakota route to roughly $205 a year, versus about $0 to keep a domestic New Mexico LLC in good standing.

When South Dakota Actually Makes Sense

Forming in South Dakota makes sense in a few specific situations: your business genuinely operates in South Dakota, with a real office, employees, or property there, or you're relocating to South Dakota in the near future, which would also move you out of New Mexico's personal income tax. For a typical small business based in New Mexico, none of these usually apply. Registering a South Dakota LLC to do business back home means $100 in New Mexico foreign-registration fees, on top of South Dakota's $150 formation fee, while New Mexico itself never asks for an annual report at all. New Mexico already allows anonymous formation, so the privacy argument for South Dakota doesn't apply to a New Mexico-based owner. Trading New Mexico's no-annual-report status for South Dakota's filing calendar is a step backwards for most owners. When in doubt, form where you actually do business.

Frequently Asked Questions

: No. South Dakota costs more upfront ($150 vs $50), and if you operate in New Mexico you must also register there as a foreign LLC ($100) plus pay a South Dakota registered agent. Realistic first-year cost is roughly $400 versus $50 for forming locally.
: Yes. Any New Mexico business can form its LLC in South Dakota. But if the business operates in New Mexico, it must also register there as a foreign LLC ($100 filing fee) and maintain a registered agent in South Dakota, so you take on two states' fees and filings instead of one.
: Not meaningfully. Both states provide charging-order protection for LLC members, and neither offers a decisive asset-protection edge for a typical small business. Sound insurance and clean separation of business and personal finances matter more in practice.
: It depends on where the business is based. For a New Mexico-based business, New Mexico: forming where the business is based keeps costs and compliance simple, and South Dakota is worth considering only if you actually do business there. For a South Dakota-based business, the same reasoning points to South Dakota.
: Speed isn't a basis for choosing between them: neither New Mexico nor South Dakota publishes a standard processing time, so any figure comparing the two is guesswork. Whichever you pick, remember that forming in South Dakota while operating in New Mexico means you're not fully set up until the New Mexico foreign registration is also processed, so the out-of-state route is rarely the faster path end to end. If your timing is genuinely fixed, buy the state's expedite tier rather than relying on a standard turnaround.

Comparison chart of forming an LLC in New Mexico versus South Dakota, contrasting filing fees, annual report cost and ongoing obligations across 8 factors. — New Mexico and South Dakota side by side on the factors that decide where to form. Source: MyStateLLC 50-state cost dataset, verified against each Secretary of State's published fee schedule, July 2026.

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More State Comparisons

New Mexico vs Tennessee →New Mexico vs Texas →New Mexico vs Utah →New Mexico vs Delaware →South Dakota vs Delaware →

New Mexico LLC Guide →South Dakota LLC Guide →

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Sources

Each entry below is a document recorded in our verified sources, and each entry says what the document is. Some statutory text is read from an accurate mirror rather than from the state's own host, and those say so. Where we hold the citation but no stable public link, the citation is printed on its own rather than pointed at a guessed address.

South Dakota statute: SDCL 59-11-25 (annual report due date)
sos.nm.gov/business-services/New Mexico Secretary of State: business entity filings
sdsos.gov/business-services/corporations/default.aspxSouth Dakota Secretary of State: business entity filings
sdsos.gov/general-information/filing-fees.aspxSouth Dakota LLC filing fees

Edmond Hui · Founder, MyStateLLC

Edmond Hui is a software engineer and serial entrepreneur based in New York who has founded multiple online businesses across e-commerce, media, and information publishing. Before transitioning into tech, he spent years as a commercial real estate professional closing deals totaling over 100,000 square feet, giving him firsthand experience with business formation and entity structuring. He built MyStateLLC to provide the free, state-specific LLC guidance he wished existed when forming his own companies.