A South Dakota LLC costs $150 to file with the Secretary of State, carries a $50 annual report, and pays no state income tax. South Dakota does not keep owners off the public record: the state lists members or managers on the formation filing. Founders who want their name off the record form a Wyoming or New Mexico anonymous LLC and foreign-qualify into South Dakota when local operations require it. This guide covers formation steps, cost, tax, the annual report, and the anonymity trade-off for 2026.
Forming a South Dakota LLC takes six pieces: a distinguishable name, Articles of Organization filed with the Secretary of State for a $150 fee, a South Dakota registered agent, an operating agreement, an EIN, and a US bank account. The state capital is Pierre, and filings clear in 1-3 business days. South Dakota lists either members or managers on the public formation record, so ownership is visible to anyone who searches the state database. The state does allow series LLCs, which lets one master LLC hold multiple protected series under a single filing. Anonymousllc.co runs the full end-to-end setup for $297 plus the $150 state fee, a $447 total that covers filing, registered agent year one, operating agreement, EIN, and four to five US bank applications.
A South Dakota LLC costs $447 all-in through Anonymousllc.co: a $297 service fee plus the $150 state filing fee. That single price covers the state filing, registered agent for year one, the operating agreement, the EIN, and four to five US bank applications. Ongoing cost from year two is the $50 annual report plus $100/year for registered agent service, so maintenance runs $150/year. There is no state income tax and no Delaware-style franchise tax on the LLC. Founders who want ownership privacy compare this against a Wyoming anonymous LLC at $397 all-in or a New Mexico LLC at $347 with no annual report at all.
No. South Dakota requires either members or managers to be disclosed on public state records, so a South Dakota LLC does not keep ownership private. Anyone searching the Secretary of State database sees the listed names. Founders whose top priority is keeping ownership off public records use one of the four anonymous-LLC states: Wyoming, New Mexico, Delaware, or Nevada. The standard privacy path is a Wyoming or New Mexico anonymous LLC that foreign-qualifies into South Dakota when the business has a physical South Dakota presence. That structure keeps member and manager names off the public record while the LLC still operates lawfully in South Dakota. See /wyoming-anonymous-llc/ and /anonymous-llc/ for the two most common privacy structures.
South Dakota charges no state personal income tax on LLC profit. Federally, a single-member LLC is a disregarded entity taxed on Schedule C, and a multi-member LLC is a partnership that files Form 1065 and issues K-1s to members. No federal entity-level tax applies to either default structure; profit passes through to the owners. An LLC can elect S-corporation treatment on Form 2553 once net income exceeds $40,000-$60,000, which shields the distribution portion of income from the 15.3% self-employment tax. The zero state income tax makes South Dakota attractive for owners who reside in the state, though it does not affect federal obligations.
South Dakota requires one annual report each year with a $50 fee. The report updates the registered agent, principal office address, and member or manager information on the public record. Missing the deadline moves the LLC to delinquent status and, after continued non-filing, triggers administrative dissolution, which strips good standing and can retroactively void the liability shield. Anonymousllc.co tracks the deadline and files the annual report on behalf of clients as part of the registered agent subscription, so the entity stays in good standing without the owner watching the calendar.
Yes. Every South Dakota LLC must maintain a registered agent with a physical street address in South Dakota, available during business hours to receive service of process and state mail. A PO box does not qualify. Anonymousllc.co provides South Dakota registered agent service at $100/year, included free in year one of any formation package. The agent forwards state notices and legal service the same day it arrives and keeps the owner's home or business address off the public filing. See /south-dakota-registered-agent/ for the full scope of the service.
A South Dakota LLC is fully operational in 5-10 business days end-to-end. The state accepts the Articles of Organization within 1-3 business days, the EIN follows in 1-7 days, and bank approval lands 8-10 days after the EIN. The process runs in parallel wherever it can. Day 0 is a 5-minute WhatsApp intake, and Anonymousllc.co files the Articles the same day. US-resident founders receive the EIN in about one day online; non-resident founders receive it in 5-7 days by fax. Bank applications go to four or five partner banks at once, so a decline at one bank does not stall the timeline.
Yes. Non-US residents form South Dakota LLCs without an SSN, ITIN, or visit to the United States. South Dakota places no citizenship or residency condition on LLC ownership. Anonymousllc.co files the Articles, obtains the EIN by fax as third-party designee on Form SS-4, provides the South Dakota registered agent and address, and submits US bank applications remotely. The founder handles the entire process from abroad over WhatsApp. Banking is harder for non-residents, so the four-to-five bank strategy raises the overall approval rate to about 90%.
Yes. South Dakota allows series LLCs, which let one master LLC hold multiple protected series, each with separate assets and liability, under a single state filing. This structure suits owners who run several ventures or hold multiple properties. A series LLC requires series-specific provisions in the operating agreement to keep each series legally distinct. Anonymousllc.co drafts the master operating agreement and the series schedules so the liability walls hold. Owners who want both a series structure and ownership privacy pair a Wyoming series LLC with a South Dakota foreign qualification.
Choose South Dakota when the business physically operates in South Dakota and ownership privacy is not the priority. Choose a Wyoming anonymous LLC when keeping member and manager names off the public record matters more than the state of record. A Wyoming LLC costs $397 all-in, keeps owners off the public record, and can foreign-qualify into South Dakota for local operations. New Mexico is the lowest-cost anonymous option at $347 with no annual report. South Dakota's advantages are its zero state income tax and series-LLC availability; its trade-off is public ownership disclosure. Anonymousllc.co files whichever structure fits the goal.
Foreign-qualifying registers an out-of-state LLC to do business in South Dakota by filing an Application for Certificate of Authority with the Secretary of State, along with a certificate of good standing from the home state. This lets a Wyoming or New Mexico anonymous LLC operate legally in South Dakota. The qualified LLC appoints a South Dakota registered agent and files the same $50 annual report as a domestic LLC. Its ownership stays governed by the home-state record, so a Wyoming parent keeps members off the public record while the South Dakota registration handles local operations. Anonymousllc.co files the anonymous LLC and the South Dakota foreign qualification together, so a privacy-focused founder gets one structure that is both anonymous at the ownership level and compliant for South Dakota business.
5-minute WhatsApp intake. 5-10 day turnaround.