How to Start a Contracting Business in South Dakota

What South Dakota does and does not license

Start with the state’s own list. The Department of Labor and Regulation publishes the index of professional and occupational boards, and it names the South Dakota Electrical Commission and the South Dakota Plumbing Commission alongside boards for abstracters, accountants, barbers, technical professions, cosmetology and real estate. There is no contractor board on it. That is the affirmative evidence that South Dakota issues no statewide general contractor licence, and it is a better answer than an empty search result.

That absence does not mean the trade is unregulated, and treating it that way is the mistake this guide exists to prevent. Electrical contracting is licensed statewide and unlicensed practice is a criminal offence. Plumbing is licensed statewide by its own commission. Every contractor needs a Department of Revenue excise tax licence. And SDCL 36-16-35 expressly preserves the right of "any municipality, rural electric cooperative, private utility, or political subdivision of the state" to impose more stringent requirements than the state’s.

So the shape of a compliant South Dakota contracting business is: an entity registered with the Secretary of State, a contractor’s excise tax licence from the Department of Revenue, a trade licence from the Electrical or Plumbing Commission if your work falls in their chapters, and whatever the jurisdiction covering the project address requires on top. There is no state contractor licence step, and looking for one is how businesses end up with none of the other three.

• No statewide general contractor licence and no contractor board.
• Contractor’s excise tax licence: required of essentially every contractor.
• Electrical contracting: licensed by the State Electrical Commission under SDCL 36-16.
• Plumbing: licensed by the South Dakota Plumbing Commission under SDCL 36-25.
• Local jurisdictions may be stricter, and the electrical statute says so expressly.

Official sources: South Dakota Department of Labor and Regulation: Boards and Commissions; South Dakota Department of Revenue: Contractor’s Excise Tax; South Dakota Electrical Commission Wiring Bulletin, reproducing SDCL chapter 36-16 and ARSD article 20:44; South Dakota Plumbing Commission: South Dakota Laws and Rules

Contractor’s excise tax: the one thing every South Dakota contractor must have

South Dakota has no general contractor licence, and new contractors often take that to mean there is nothing to register for. That is the single most expensive misreading available in this state. The Department of Revenue requires a contractor’s excise tax licence of "Any person entering into a contract for construction services (as defined in Division C of the Standard Industrial Classification Manual of 1987) or engaging in services that include the construction, building, installation, or repair of a fixture to real property."

The rate is 2% of gross receipts for construction projects, imposed under SDCL 10-46A for non-qualified utility projects and SDCL 10-46B for qualified utility projects. Two features of the base catch people. Gross receipts include any taxes you collected from the customer, so the tax is calculated on a figure that already contains tax. And on non-qualified utility projects, owner-furnished materials must be included in your reportable gross receipts, so material the homeowner bought and handed you is in your tax base even though it never appeared on your invoice.

The prime contractor carries a paperwork duty that does not exist in most states. The Department of Revenue states that "Except for projects for a qualified utility, it is the prime contractor’s responsibility to issue prime contractor’s exemption certificates to all subcontractors for each project," and requires each certificate to show the prime’s licence number, the project location and the project description. Blanket certificates are not permitted. That is one certificate per subcontractor per project, issued by you, and a subcontractor without one is exposed on receipts you have already been taxed on.

The practical sequence for a new South Dakota contractor is therefore: form the entity with the Secretary of State, get the contractor’s excise tax licence from the Department of Revenue before you take construction work, and get the trade licence from the Electrical Commission or the Plumbing Commission if your work falls inside their chapters. There is no fourth step called "the contractor licence," and looking for one is how people end up trading with no registration at all.

Official sources: South Dakota Department of Revenue: Contractor’s Excise Tax; South Dakota Department of Revenue: Businesses; South Dakota Department of Labor and Regulation: Boards and Commissions

Forming the company, and the annual report that has no single statewide date

The Secretary of State forms the entity and publishes flat fees for it. Domestic LLC articles of organization are $150 filed electronically online or $165 on paper, domestic corporation articles of incorporation are the same $150 or $165, and a DBA fictitious business name registration is $10. The published fee schedule is marked "Effective July 1, 2016."

The recurring filing is an annual report at $55 online or $70 on paper. Its due date is not a single statewide date the way it is in most states: the Secretary of State directs filers to use the search tool to find their business ID "and/or see when your Annual Report is due," which means the date is keyed to your own entity rather than to a calendar the whole state shares. Look yours up and diary it rather than assuming a March or April deadline you brought from another state.

Late is expensive relative to the fee. The Secretary of State states that "Delinquent Annual Reports will incur an additional $50 late fee per Annual Report," with a further $15 paper processing fee if mailed. On a $55 filing that is close to a doubling.

None of this touches the tax side. The entity filing does not give you a contractor’s excise tax licence, and the excise tax licence does not maintain your entity. They are separate records at separate agencies with separate calendars.

Official sources: South Dakota Secretary of State: Filing Fees; South Dakota Secretary of State: Annual Report filing instructions; South Dakota Secretary of State: Business Forms and Fees; South Dakota Department of Revenue: Contractor’s Excise Tax

What South Dakota does license: electrical and plumbing, each by its own commission

Electrical is the clearest case, and the statute is unusually blunt about it. SDCL 36-16-1 requires any person, firm, partnership, limited liability company or corporation "engaged, or offering to engage, in business as an electrical contractor" or performing the work defined in the chapter to obtain a licence from the State Electrical Commission before undertaking the work, and states that it "is a Class 2 misdemeanor" to engage in that business or work otherwise. SDCL 36-16-34 repeats the misdemeanor grading for failing to register, obtain a licence, or report wiring.

The contracting right is narrower than the licence list suggests. SDCL 36-16-14 provides that "No contract, agreement, or understanding with another for the installation of electrical wiring or the installation of electrical parts of other apparatus shall be entered into by anyone not an electrical contractor," and confines a Class B electrician’s contracting authority to farm and residential electrical wiring and the related equipment and appliances. A general builder cannot take the electrical scope into their own contract and sub it out to a journeyman.

The ladder and the money are both statutory. SDCL 36-16-2 defines a journeyman electrician as having at least four years of experience and a Class B electrician as having at least thirty-six months. SDCL 36-16-19 requires "at least two years of experience as a journeyman electrician or at least one year of commercial experience as a Class B electrician before making application for an electrical contractor’s license." SDCL 36-16-20 requires a $10,000 undertaking plus public liability insurance of not less than $100,000 per occurrence and $300,000 aggregate, and a $50 deposit to a special fund at execution and at each biennial renewal. SDCL 36-16-17 caps biennial fees at $200 for an electrical contractor, $80 for a journeyman and $200 for a Class B electrician. SDCL 36-16-25 sets a two-year term expiring at midnight on June 30 of each even-numbered year, with a thirty-day renewal window after expiry. The Electrical Commission adds that licensees need 16 hours of continuing education, a minimum of 8 of them code hours, by renewal or by June 30, whichever is sooner.

The exemptions are worth knowing before you assume you are caught. SDCL 36-16-15 requires no licence of a person installing electric wiring in or on their own residence, their own farmstead, a single-family dwelling under construction that they own and intend to occupy, or private non-habitable property they own "that is not substantially used in connection with a trade or business." Even then, entrance installations over sixty amperes, circuits and electrical parts of other apparatus are subject to inspection and an inspection fee, and "Failure to report this work as required by law is a Class 2 misdemeanor." SDCL 36-16-16 separately exempts utility employees up to the first point of service attachment and employees of telephone, telegraph, radio, television and pipeline services where the work is designed, supervised or installed by a qualified person. SDCL 36-16-25 also disapplies the chapter to emergency repairs to farmstead and residential wiring.

Plumbing is licensed by the South Dakota Plumbing Commission, and we describe it in the Commission’s own terms rather than the statute’s, because we could not read SDCL chapter 36-25 itself. The Commission licenses plumbing contractors, plumbers and third-year apprentices, sewer and water contractors and installers, appliance contractors and installers, on-site wastewater system installers, manufactured and mobile home contractors and installers, underground irrigation contractors and installers, water conditioning contractors and installers, and apprentices in every category. It states that a plumbing contractor needs "six years’ experience as a plumbing contractor, plumber, or plumber’s apprentice with at least two of those years as a plumbing contractor or plumber," and a plumber needs "four years’ experience as an apprentice plumber." It states the governing law as SDCL 36-25 with rules in ARSD 20:53 and the plumbing code in ARSD 20:54, and requires a plumbing inspection certificate for all plumbing installations.

Finally, none of the above is the whole answer for the town you are standing in. SDCL 36-16-35 preserves the right of "any municipality, rural electric cooperative, private utility, or political subdivision of the state from making and enforcing more stringent requirements than those set forth in this chapter, and such requirements shall be complied with." We publish no municipal fee, bond, threshold or renewal cycle anywhere on this site; ask the jurisdiction covering the project address.

Official sources: South Dakota Electrical Commission Wiring Bulletin, reproducing SDCL chapter 36-16 and ARSD article 20:44; South Dakota Electrical Commission: Licensing; South Dakota Plumbing Commission: Licensing; South Dakota Plumbing Commission: South Dakota Laws and Rules

The order to do this in, and the trap in each step

Form the entity first. The Secretary of State charges $150 to file domestic LLC articles of organization electronically or $165 on paper, the same for corporation articles of incorporation, and $10 for a DBA fictitious business name registration. The trap here is the annual report: at $55 online or $70 on paper it is cheap, but its due date is keyed to your own entity rather than to a statewide date, and the Secretary of State directs you to the search tool to "see when your Annual Report is due." Late costs "an additional $50 late fee per Annual Report."

Get the excise tax licence before you take construction work, not after your first invoice. It is required of anyone entering a contract for construction services or performing "the construction, building, installation, or repair of a fixture to real property," and the tax runs at 2% of gross receipts. The trap is the base: gross receipts include taxes you collected from the customer, and on non-qualified utility projects owner-furnished materials are included in your reportable gross receipts even though they never appeared on your invoice.

Get the trade licence if your work needs one, and check the calendar it runs on rather than yours. SDCL 36-16-25 puts electrical licences on a two-year term expiring "at midnight on June thirtieth following the date of issuance of each even-numbered year," with only a thirty-day renewal window after expiry, and the Electrical Commission requires 16 continuing education hours with a minimum of 8 code hours before renewal or by June 30, whichever comes first.

Then ask the jurisdiction. SDCL 36-16-35 makes local requirements enforceable on top of the state’s, and we publish no municipal fee, bond, threshold or renewal cycle for any South Dakota city or county anywhere on this site. Ask the building department covering the exact project address, and treat contractor authority, a local business licence, a tax endorsement and a permit account as four different things.

Official sources: South Dakota Secretary of State: Filing Fees; South Dakota Secretary of State: Annual Report filing instructions; South Dakota Department of Revenue: Contractor’s Excise Tax; South Dakota Electrical Commission Wiring Bulletin, reproducing SDCL chapter 36-16 and ARSD article 20:44; South Dakota Electrical Commission: Licensing

Check the official page yourself before you file or sign

One limitation applies to everything above and you should know it before you rely on a statute citation from any source about South Dakota. The Legislature’s own site, sdlegislature.gov, returns HTTP 200 with no statute text to anything but an interactive browser. We tried the statute path and five separate API paths on 2026-08-06 and every one returned a loading shell. A monitoring system that checks status codes reads that as a healthy source. It is not one, and it means summaries of South Dakota law circulating online may never have been checked against the code.

Because of that, every verbatim SDCL quotation here comes from the Department of Labor and Regulation’s own reproduction of chapter 36-16 in the Electrical Commission wiring bulletin, published on dlr.sd.gov. We publish no verbatim text of SDCL chapter 36-25 at all, because no agency reproduction of the plumbing chapter was available to us; every plumbing statement here is the Plumbing Commission’s own description, attributed as such.

Two further limits. We publish no municipal fee, bond, insurance minimum, dollar threshold or renewal cycle for any South Dakota city or county, and SDCL 36-16-35 specifically warns that local requirements can be stricter than the state’s. And we found no South Dakota provision barring an unlicensed contractor from suing to collect payment, which we record as something we did not find rather than as a conclusion, precisely because we could not search the full code.

Official sources: South Dakota Electrical Commission Wiring Bulletin, reproducing SDCL chapter 36-16 and ARSD article 20:44; South Dakota Plumbing Commission: South Dakota Laws and Rules; South Dakota Department of Labor and Regulation: Boards and Commissions