South Dakota contractor license requirements
South Dakota does not issue a statewide general contractor license. Every contractor needs a contractor's excise tax license from the Department of Revenue, electricians and plumbers are licensed by state commissions, and cities such as Sioux Falls run their own building contractor licenses.
South Dakota has no statewide general contractor license and no state exam for general building work. What the state does require is a contractor's excise tax license from the South Dakota Department of Revenue for anyone who contracts for construction services or builds, installs, or repairs a fixture to real property. On top of that, electrical work is licensed by the State Electrical Commission, plumbing by the State Plumbing Commission, and asbestos abatement by the Department of Agriculture and Natural Resources (DANR). The real general contractor licensing happens at the city level, so a remodeler in Sioux Falls faces an exam and a bond that a contractor in a small town may not.
| Item | What applies |
|---|---|
| Statewide general contractor license | None |
| State registration every contractor needs | Contractor's excise tax license, South Dakota Department of Revenue |
| Contractor's excise tax rate | 2% of gross receipts (bid factor of 2.041%) |
| Electrical contractor | State Electrical Commission license; $10,000 undertaking plus $50 deposit; liability insurance of $100,000 per occurrence and $300,000 aggregate |
| Plumbing contractor | State Plumbing Commission license; six years of experience, two as a contractor or plumber, at 1,900 hours per year |
| Asbestos abatement | DANR certification for contractors and workers |
| Local general contractor licenses | Set by cities; Sioux Falls requires an exam, a $20,000 compliance bond, and $300,000 general liability for residential work |
| License lookup | No single state database; plumbing licensee lists on the DLR site, electrical verification by phone or email |
The contractor's excise tax license
This is the one piece of state paperwork almost every South Dakota contractor shares. The Department of Revenue says anyone entering into a contract for construction services, or doing construction, building, installation, or repair of a fixture to real property, must hold the license. That includes remodeling and repair of existing buildings, not only new construction. Speculative builders who build to sell, including house flippers, need one too.
It is a tax registration, not a test of skill. You apply online through the Department's tax license application at apps.sd.gov. Once licensed, a prime contractor owes 2% on gross receipts from the project. The Department suggests a bid factor of 2.041% because gross receipts include the tax collected from the customer. Returns are due by the 20th of the month; electronic payments are due by the 25th.
The prime versus sub split matters here. On a normal project, the prime contractor pays the excise tax and issues a prime contractor's exemption certificate to each subcontractor for that specific project. A blanket certificate is not allowed. A sub without a certificate on file is treated as a prime and owes the tax itself. Qualified utility projects under SDCL 10-46B work differently: primes and subs both owe the tax and no exemption certificates are issued.
The Department's guide also says all contractors must display their contractor's excise tax license number with their building permits, written on or near the permit. Separately, prime contractors and subs who do highway construction on public roads need a highway contractor's license in addition to the excise tax license, and political subdivisions check that license before awarding a bid.
Electrical contractor licensing
The State Electrical Commission, part of the Department of Labor and Regulation (DLR), licenses apprentice electricians, journeyman electricians, electrical contractors, and Class B electricians. The path is long: four years and 8,000 hours as a licensed apprentice before the journeyman exam, then two more years and 4,000 hours as a journeyman, with at least 2,000 hours of commercial work, before the electrical contractor exam. Hours only count if they were worked under a license.
- Undertaking: a $10,000 undertaking, or other security the Commission approves, conditioned on faithful performance of electrical work.
- Deposit: $50 when the undertaking is executed and again at each biennial renewal.
- Insurance: public liability insurance of at least $100,000 per occurrence and $300,000 aggregate for bodily injury and property damage, kept in force with certificates on file.
- Renewal: licenses renew every two years. The current renewal period opened April 20, 2026, and renewals sent by June 30 avoid a late fee.
- Continuing education: 16 hours, with at least 8 code hours. Pre-approved online courses count for only 8 hours.
When the employer is a partnership or corporation that carries the undertaking and insurance, the individual licensee does not have to file separately. Electrical contractors and Class B electricians licensed by the state also do not need an extra undertaking to get a municipal license.
Plumbing and related specialty licenses
The State Plumbing Commission licenses plumbing contractors, plumbers, and apprentices, plus a set of specialty trades. A plumbing contractor needs six years as a plumbing contractor, plumber, or apprentice, with at least two of those years as a contractor or plumber, at 1,900 hours per year. A plumber needs four years as an apprentice at 1,900 hours per year, and military plumbing credit is available.
The specialty licenses catch trades that would not need a license in many other states: sewer and water contractor and installer, appliance contractor and installer, underground irrigation contractor and installer, water conditioning contractor and installer, manufactured and mobile home contractor and installer, and small on-site wastewater system installer. Most contractor levels require one year as an installer, and most installer levels require two years as an apprentice. Renewal forms for the 2026 to 2027 specialty licenses went out in April 2026. The Commission's licensing page says each application needs a fee but does not post the amount, so confirm it with the Commission before you apply.
Asbestos abatement
DANR certifies asbestos inspectors, management planners, project designers, contractors and supervisors, and workers. Regulated asbestos-containing material over 3 square feet or 3 linear feet must be removed by certified individuals. Before any demolition or renovation, a certified inspector has to inspect the affected area. Every demolition of a regulated building requires a notification to DANR, even with no asbestos present, and a renovation requires one when at least 260 linear feet or 160 square feet of regulated asbestos will be disturbed. Regulated buildings include commercial, public, institutional, and industrial structures and residential buildings with more than four units; single-family homes are usually exempt unless several are torn down or renovated as part of a larger project. Notifications should be postmarked 10 working days before the work starts.
City licenses: Sioux Falls, Rapid City, and others
Because the state stays out of general contractor licensing, cities fill the gap. Sioux Falls is the clearest example. Any contractor working on 1 and 2 family dwellings and townhomes inside city limits needs a residential building contractor license for any work that requires a city permit.
- Pass the Construction Supervisor Examination: open book, 50 questions, 80% to pass, $75 per attempt, offered monthly. Apply for the license within 90 days of passing.
- Post a $20,000 compliance bond written for the City of Sioux Falls.
- Carry at least $300,000 in general liability insurance with the city as certificate holder.
- Renew every 3 years with current bond, insurance, and at least one hour of continuing education per cycle.
- No reciprocity. An out-of-state license or a state excise tax license does not replace the exam.
Sioux Falls does not require a license for a general contractor on commercial projects (apartment buildings count as commercial), but every commercial project still goes through plan review and permits. Electrical, plumbing, and mechanical work each carry separate city licenses and exams, and the electrical and plumbing licenses require the state license first.
Rapid City and other cities run their own contractor licensing through their building departments, with their own classes, insurance minimums, and renewal rules. Call the building official in each city where you plan to pull permits before you bid, and keep each city's license, bond, and insurance expiration dates in one place. A subcontractor COI tracking template works for your own certificates as well as your subs'.
How to look up a South Dakota contractor license
There is no single statewide contractor lookup. For plumbers, the Plumbing Commission posts PDF lists of licensed plumbers, specialty licensees, and small on-site wastewater installers on its consumer information page. For electricians, the Electrical Commission verifies licenses at 605.773.3573 or electrical@state.sd.us. For a city license, check the city's own list; Sioux Falls publishes a currently licensed contractors page. For the excise tax license, ask the contractor for the number and confirm it with the Department of Revenue.
Licensing is only one part of working in the state. Check South Dakota mechanics lien rules before you start a job, and South Dakota prevailing wage rules before bidding public work. The contractor license hub covers other states if you work across borders. Smart Business Automator keeps license numbers, bonds, and insurance certificates for your company and every sub in one record, with reminders before they lapse; see subcontractor compliance automation.
Frequently asked questions
Do I need a general contractor license in South Dakota?
Not from the state. South Dakota has no statewide general contractor license. You do need a contractor's excise tax license from the Department of Revenue, and many cities, including Sioux Falls, require their own contractor license, exam, bond, and insurance.
How much is the South Dakota contractor's excise tax?
The rate is 2% of gross receipts on construction and realty improvement projects. The Department of Revenue suggests a bid factor of 2.041% because gross receipts include the tax collected from the customer.
Do subcontractors pay the contractor's excise tax?
On most projects the prime contractor pays it and issues a project-specific prime contractor's exemption certificate to each sub. A sub without a certificate on file is treated as a prime and owes the tax. On qualified utility projects under SDCL 10-46B, both primes and subs owe it.
What insurance does a South Dakota electrical contractor need?
The Electrical Commission requires public liability insurance of at least $100,000 per occurrence and $300,000 aggregate for bodily injury and property damage, plus a $10,000 undertaking and a $50 deposit.
Does Sioux Falls require a license for commercial general contractors?
No. Sioux Falls licenses residential building contractors but does not require a license for a general contractor on commercial projects. Each commercial project still needs plan review and permits, and trade work needs the trade's own license.
Sources
- South Dakota Department of Revenue: Contractor's Excise Tax
- South Dakota Department of Revenue: Contractor's Excise Tax Guide
- South Dakota DLR Electrical Commission: Licensing
- South Dakota DLR Electrical Commission: Undertaking and Insurance
- South Dakota DLR Electrical Commission: Complaints and license verification
- South Dakota Plumbing Commission: Licensing
- South Dakota Plumbing Commission: Consumer Information and licensee lists
- South Dakota DANR: Asbestos in demolition and renovation
- City of Sioux Falls: Residential Building Contractor licensing
Laws and rates change. Confirm current requirements with the state agency before you bid, file, or pay. This page is general information, not legal advice.
