South Dakota Business License and Permit Requirements for Contractors

The registration that functions as South Dakota’s contractor licence

South Dakota’s contractor-facing statewide requirement is administered by the Department of Revenue rather than by a licensing board, and it is the contractor’s excise tax licence. It applies to "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 tax is 2% of gross receipts on construction projects, under SDCL 10-46A for non-qualified utility projects and SDCL 10-46B for qualified utility projects. Gross receipts include any taxes collected from customers, and for non-qualified utility projects owner-furnished materials must be included in reportable gross receipts.

Because it is a tax licence rather than a competence licence, nothing about it says you can build. It says the state knows who you are and expects a return. That is why the rest of this page matters: the trade licences and the local requirements are where competence and authority are actually tested.

• No general state business licence and no state contractor licence.
• Contractor’s excise tax licence: required before taking construction work.
• Rate is 2% of gross receipts, and gross receipts include tax you collected.
• Owner-furnished material counts on non-qualified utility projects.
• Prime contractors issue an exemption certificate to each sub, per project.

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

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

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 permits that are not licences

Electrical work carries a permit obligation independent of who holds the licence. SDCL 36-16-27 provides that "No new electrical service entrance except for communication service may be connected for use until a wiring permit has been furnished to the person, firm, or corporation supplying electrical energy certifying that a wiring permit has been obtained in compliance with the rules promulgated by the commission," and caps the rule-set permit fee at fifteen dollars each, with a late wiring permit procedure and failure-to-renew fee that "may not exceed seven hundred fifty dollars."

Even exempt homeowner work triggers reporting. SDCL 36-16-15 requires no licence for a person wiring their own residence, own farmstead, a single-family dwelling they own and intend to occupy, or their own private non-habitable property not substantially used in a trade or business, but then provides that "Entrance installations in excess of sixty amperes capacity, circuits, or the installation of electrical parts of other apparatus shall be subject to inspection and payment of an inspection fee," and that "Failure to report this work as required by law is a Class 2 misdemeanor."

Plumbing has its own inspection layer. The Plumbing Commission states that a plumbing inspection certificate is required for all plumbing installations. For homeowner work it cites SDCL 36-25-17, allows installation only in a single-family dwelling you own and reside in or will reside in when construction is complete, excludes commercial and rental property, excludes mobile and modular homes unless located on an owner-occupied lot at the time of the installation, requires the owner to be the person performing the installation, and prices the homeowner permit at $130 with a two-year expiry and three required inspections.

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

Local requirements: why this guide stops at the state line

South Dakota is one of the states where the statute itself tells you the state answer is not the final answer. SDCL 36-16-35 provides that nothing in the electrical chapter "shall prohibit 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." Rural electric cooperatives and private utilities are named alongside municipalities, which is unusual and worth noticing when you work outside town.

We publish no municipal fee, bond amount, insurance minimum, dollar threshold or renewal cycle for any South Dakota jurisdiction anywhere on this site. That is a deliberate editorial rule: no local jurisdiction has cleared our publication review, and a stale municipal figure is worse than an instruction to ask. 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 separate things rather than one.

One state-level comfort in that mess. SDCL 36-16-20 provides that no electrical contractor or Class B electrician licensed under the chapter "need furnish any additional undertaking for municipal license as such contractor or electrician," so the $10,000 state undertaking is not something a city can require again on its own account.

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

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