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

No. Washington costs more upfront ($180 vs $150), and if you operate in South Dakota you must also register there as a foreign LLC ($750) plus pay a Washington registered agent. Realistic first-year cost is roughly $1,080 versus $150 for forming locally.

Can I form my South Dakota business in Washington?

Yes. Any South Dakota business can form its LLC in Washington. But if the business operates in South Dakota, it must also register there as a foreign LLC ($750 filing fee) and maintain a registered agent in Washington, so you take on two states' fees and filings instead of one.

Does Washington have better asset protection than South Dakota?

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

South Dakota LLC vs Washington LLC (2026)

Compare South Dakota LLC vs Washington 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: August 13, 2026

For most businesses, forming an LLC in South Dakota beats Washington. South Dakota runs $205 in year one and $55/yr after; Washington runs $270 and $70/yr. See the full breakdown below.

Verdict: South Dakota wins for most businesses

For most South Dakota-based businesses, forming locally in South Dakota is the smarter choice. You avoid paying fees in two states and managing compliance in both. Washington only makes sense if your business genuinely operates there, and even then the total costs deserve a hard look.

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Factor	South Dakota	Washington
Filing Fee	$150	$180
Processing Time	Not published by the state	Within 15 business days (paper)
Annual Report Fee	$55	$70
Annual Report Due	Anniversary month	Last day of anniversary month
State Income Tax	No	No
Anonymous LLC	No	No
Publication Requirement	No	No
Foreign LLC Cost (if forming out-of-state)	N/A, you're in your home state	$750 + registered agent ~$150/yr

Full fee breakdown for either state: South Dakota LLC cost and Washington LLC cost.

Business Climate: South Dakota vs Washington

Factor	South Dakota	Washington
5-year business survival rate	52.7% (#19 of 51)	42.2% (#51 of 51)
Business application growth (2026 YTD (Jan to Jul) vs 2025 YTD (same months))	+15.4% YoY (#47 of 51 by volume)	-25.5% YoY (#15 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: South Dakota vs Washington

State A

State B

South Dakota

✓ Cheaper Upfront✓ Cheaper Long-Term

Formation fee$150

Annual report fee$55

State entity taxNone

Report dueAnniversary month

Processing timeNot published by the state

Late penalty$55

Washington

Formation fee$200

Annual report fee$70

State entity taxNone

Report dueLast day of anniversary month

Processing timeWithin 15 business days (paper)

Late penalty$25

Total Cost

South Dakota

Washington

1 Year

$205

$270

3 Years

$315

$410

5 Years

$425

$550

Will you operate outside your home state?

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 a state requires publication, and any one-time registration charge a state requires before the LLC may trade. 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. Montana's annual report is free when filed by April 15 and $35 after, a waiver the Secretary of State applies at its discretion. 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

South Dakota charges $150 to form an LLC, while Washington charges $180. South Dakota is $30 cheaper upfront. The cost that usually gets overlooked: if you form in Washington but operate in South Dakota, you must also register as a foreign LLC in South Dakota (a $750 filing) and maintain a registered agent in Washington (typically around $150 per year). That puts the realistic first-year cost of the Washington route at roughly $1,080, versus $150 for simply forming in South Dakota. Only one side of this comparison is knowable: Washington publishes within 15 business days (paper), while South Dakota publishes no standard processing time, so the two can't be ranked against each other on speed.

Taxes: South Dakota vs Washington

Neither South Dakota nor Washington levies a personal income tax, so there's no income-tax advantage to forming in either state. Washington imposes the Business & Occupation (B&O) tax on gross receipts.

Privacy & Asset Protection

Neither South Dakota nor Washington offers anonymous LLC formation: both states require owner or manager information on public filings. Washington's report records the LLC's governors (members/managers) on the public record. Business owners who prioritize privacy typically form a holding company in a state like Wyoming or New Mexico instead. 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.

Annual Maintenance Costs

South Dakota LLCs file an annual report ($55, due in the anniversary month), and Washington LLCs file an annual report ($70, due in the anniversary month). If you form in Washington while operating in South Dakota, you maintain filings in both states, Washington's report plus South Dakota's equivalent for your foreign registration, and pay a Washington registered agent roughly $150 per year. That brings ongoing costs of the Washington route to roughly $275 per year, versus about $55 to keep a domestic South Dakota LLC in good standing. One more recurring cost to budget for: Washington imposes the Business & Occupation (B&O) tax on gross receipts.

When Washington Actually Makes Sense

Forming in Washington makes sense in a few specific situations: your business genuinely operates in Washington, with a real office, employees, or property there, or you're relocating to Washington in the near future. For a typical small business based in South Dakota, none of these usually apply. Registering a Washington LLC to do business back home means $750 in South Dakota foreign-registration fees, on top of Washington's $200 formation fee, while South Dakota's own annual report runs $55 a year and is due in the anniversary month. When in doubt, form where you actually do business.

Frequently Asked Questions

: No. Washington costs more upfront ($180 vs $150), and if you operate in South Dakota you must also register there as a foreign LLC ($750) plus pay a Washington registered agent. Realistic first-year cost is roughly $1,080 versus $150 for forming locally.
: Yes. Any South Dakota business can form its LLC in Washington. But if the business operates in South Dakota, it must also register there as a foreign LLC ($750 filing fee) and maintain a registered agent in Washington, 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.
: South Dakota, for most. Forming where you operate keeps costs and compliance simple. Washington is worth considering only if you actually do business there or have investor requirements that point there.
: Only one side of this comparison is knowable: Washington publishes within 15 business days (paper), while South Dakota publishes no standard processing time, so the two can't be ranked against each other on speed. Only 19 of the 50 states publish anything about non-expedited turnaround at all. Whichever you pick, remember that forming in Washington while operating in South Dakota means you're not fully set up until the South Dakota 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 South Dakota versus Washington, contrasting filing fees, annual report cost and ongoing obligations across 8 factors. On balance this guide favours South Dakota. — South Dakota and Washington 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.

More State Comparisons

South Dakota vs West Virginia →South Dakota vs Wisconsin →South Dakota vs Wyoming →South Dakota vs Delaware →Washington vs Delaware →

South Dakota LLC Guide →Washington LLC Guide →

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