South Dakota Contractor License Requirements: Complete 2026 Guide

South Dakota takes a different approach to contractor licensing than most states. Rather than operating a single statewide general contractor competency board, the state requires all contractors to obtain a contractor's excise tax license through the South Dakota Department of Revenue (DOR). This tax license is mandatory for anyone entering into a contract for construction services or real-property improvements, regardless of the size of the project or receipts generated.

Beyond the DOR tax license, South Dakota regulates specific trades at the state level through dedicated commissions. The South Dakota Electrical Commission licenses electricians and electrical contractors, while the South Dakota Plumbing Commission licenses plumbers, plumbing contractors, and several specialty categories. Contractors working on publicly funded highway projects must also hold a separate Highway Contractor License.

This guide covers every license type available in South Dakota, the requirements and application process for each, fees, exams, insurance and bonding, renewal, reciprocity, and penalties for unlicensed work.

Types of Contractor Licenses

South Dakota's contractor licensing system is split across multiple agencies. Here are the main license types you may need depending on the work you perform.

Contractor's Excise Tax License (DOR)

This is the baseline requirement for all contractors in South Dakota. Administered by the Department of Revenue, this license covers anyone who enters into a contract for construction services or real-property improvements. All contractors must be licensed regardless of receipts or tax due. The DOR classifies taxable projects under two categories defined in state law: Non-Qualified Utility Projects (SDCL Chapter 10-46A) and Qualified Utility Projects (SDCL Chapter 10-46B). These are project tax categories, not separate competency licenses.

Electrical Licenses

The South Dakota Electrical Commission issues statewide licenses for electrical work. License types include:

• Electrical Contractor — Full authority to contract for electrical work
• Class B Electrician — Limited electrical contracting authority
• Journeyman Electrician — Performs electrical work under a licensed contractor
• Reciprocal Electrical Contractor — For out-of-state contractors with qualifying licenses
• Reciprocal Journeyman — For out-of-state journeymen with qualifying licenses
• Inactive Electrical Contractor / Inactive Class B / Inactive Journeyman — Inactive status options for each license class
• 501(d) Electrician — For members of qualifying religious communities
• Electrical Inspector — For those performing electrical inspections

Plumbing Licenses

The South Dakota Plumbing Commission licenses plumbing professionals statewide. License categories include:

• Plumbing Contractor — Full authority to contract for plumbing work
• Plumber — Performs plumbing work under a licensed contractor
• Apprentice Plumber — Entry-level plumbing license
• Sewer and Water Contractor/Installer
• Appliance Contractor/Installer
• Manufactured/Mobile Home Contractor/Installer
• Underground Irrigation Contractor/Installer
• Water Conditioning Contractor/Installer
• Individual/Small Onsite Wastewater Installer

Highway Contractor License

Contractors bidding on publicly funded highway and road construction projects must hold a separate Highway Contractor License. This is in addition to the contractor's excise tax license. Bidders must hold this license before they can obtain a public highway or street contract.

Local Permits and Inspections

While official state sources do not describe a county or city general-contractor licensing framework, several municipalities maintain local permit and inspection requirements. Contractors must post their excise tax license number with any building permit where a political subdivision requires one. Cities including Rapid City and Sioux Falls have local electrical inspection departments, and Aberdeen, Brandon, Rapid City, Sioux Falls, and Spearfish perform their own plumbing inspections.

Licensing Requirements

Contractor's Excise Tax License (DOR)

The DOR does not publish requirements for experience, education, exams, insurance minimums, or background checks for the contractor's excise tax license. The published requirement is that a contractor must be licensed before starting work on any construction project. The Secretary of Revenue may refuse to issue a license to a delinquent taxpayer and may require a bond or other adequate security, though no fixed bond amount is published in SDCL Chapter 10-46A.

Electrical Contractor Requirements

The path to an electrical contractor license in South Dakota follows a structured progression as outlined by the Electrical Commission:

1. Journeyman Electrician: Complete 4 years / 8,000 hours as an apprentice to sit for the journeyman exam. Experience hours must be earned under a licensed electrician to count.
2. Electrical Contractor: After earning a journeyman license, complete 2 additional years / 4,000 hours of experience, including at least 2,000 hours of commercial work, to sit for the electrical contractor exam.

The application asks about out-of-state licenses, prior denials or revocations, and any conviction or plea to a crime of violence. Applicants with a 2-year or 4-year electrical degree may receive transcript credit toward their experience requirement.

Plumbing Contractor Requirements

The Plumbing Commission sets the following experience thresholds:

• Plumbing Contractor: 6 years of experience as a plumbing contractor, plumber, or apprentice, with at least 2 years as a plumbing contractor or plumber, and 1,900 hours per year during those 6 years.
• Plumber: 4 years as an apprentice plumber with 1,900 hours per year. Military plumbing experience is credited at 1 year for each 2 years in the military, up to 5 years of credit.
• Specialty Contractors: Most specialty contractor licenses require 1 year as the corresponding installer.
• Specialty Installers: Most specialty installer licenses require 2 years as the corresponding apprentice.

The plumbing application requires documentation for trade school completion, military plumbing experience, experience verification, and/or valid license verification, as applicable.

Application Process

Contractor's Excise Tax License (DOR)

All contractors must apply for their excise tax license through the DOR's online system:

1. Apply Online: Submit your application at apps.sd.gov/rv23cedar/main/main.aspx.
2. Provide Business Information: The application requires owner name, SSN or FEIN, mailing and business address, business begin date, whether the business is on Indian Country, accounting method, principal product or service, project description (if for a specific project), NAICS code, estimated yearly sales, nexus questions, previous owner information, website, and EPath username.
3. Receive Your License Card: The DOR issues a license card once your application is approved.

There is no fee for the contractor's excise tax license. After creating an EPath account, the initial password is mailed within 3 to 5 days. The DOR does not publish a specific timeline for license approval.

Electrical License Application

1. Download the Application: Get the Electrical License Application (PDF) from the Electrical Commission forms page.
2. Complete All Sections: Provide signature, date, fees, and any additional sheets or documentation. Contractor and Class B applicants must also submit the bond/undertaking form.
3. Submit and Wait: Processing takes approximately 30 days.
4. Receive Your License: Upon approval, the Commission will email a printable copy of your new license.

Plumbing License Application

1. Download the Application: Get the Plumbing License Application (PDF) from the Plumbing Commission forms page.
2. Gather Required Documents: Depending on your situation, you may need experience verification forms, trade school completion records, military experience documentation, or license verification from other states.
3. Submit Promptly: Applications expire 30 days from receipt if not completed or processed. The Commission does not publish a standard approval timeline.

Examination Requirements

Contractor's Excise Tax License

The DOR does not require an examination for the contractor's excise tax license.

Electrical Exams

All electrical license applicants (journeyman and contractor) must pass an examination administered by the South Dakota Electrical Commission. Key details:

• You must receive Commission approval before you can sit for the exam.
• After approval, you have 90 days to locate the exam site and take the test.
• The Commission's public pages do not identify the testing vendor or passing score. Verify current exam details with the Electrical Commission exam page.
• The statutory exam fee is up to $150 per examination or reexamination, as authorized by SDCL 36-16-13.

Plumbing Exams

The State Plumbing Commission administers plumbing exams directly. Key details:

• Contractor exam/re-exam: $100
• Plumber/installer exam/re-exam: $100
• Third-year apprentice exam/re-exam: $50
• The Commission does not publish passing scores or name a third-party testing provider. Verify current details with the Plumbing Commission exam page.

License Fees and Costs

Contractor's Excise Tax License Fees

The DOR charges no fee for a contractor's excise tax license — no application fee, no license fee, and no renewal fee. See the DOR Tax Fact Sheet (PDF) for confirmation.

Electrical License Fees

All electrical license types require a $60 application fee in addition to the license fee. Fees are published on the Electrical License Application (PDF).

Electrical Exam Fees

Electrical Permit and Administrative Fees

The Electrical Commission also charges permit and administrative fees:

Plumbing Exam Fees

Plumbing License Fees

The Plumbing Commission does not publish application, renewal, late penalty, or reinstatement fees on its main pages. Verify current fee amounts by checking the Plumbing Application (PDF) and the Plumbing Commission forms page.

Highway Contractor License Fee

The exact fee for the Highway Contractor License is not published on the main DOR pages. Verify with the DOR Motor Fuel / Highway Contractor page.

Insurance and Bond Requirements

Contractor's Excise Tax License

Under SDCL Chapter 10-46A, the Secretary of Revenue may require a bond or other adequate security as a condition of issuing a contractor's excise tax license, but no fixed bond amount is published in the statute. This requirement is typically applied to contractors who are delinquent taxpayers.

Electrical Contractor Bond and Insurance

Electrical contractors and Class B electricians must meet financial security requirements set by the Electrical Commission:

Undertaking (Bond)

• $10,000 undertaking (surety bond) required
• $50 initial deposit to the Commission's undertaking fund
• $50 biennial deposit at each renewal, unless waived when the fund exceeds $50,000

Liability Insurance

Electrical contractors and Class B electricians must carry liability insurance meeting one of these minimum thresholds:

• $100,000 per occurrence / $300,000 aggregate for bodily injury, plus $25,000 per occurrence for property damage, or
• A combined single limit of $300,000

Plumbing Bond and Insurance

The Plumbing Commission's published pages do not detail bond or insurance minimums for plumbing contractors. Verify current requirements with the Plumbing Commission directly.

General Liability Insurance

While the DOR does not mandate specific general liability minimums for the excise tax license, carrying adequate general liability insurance is standard practice in the construction industry and is often required by project owners and general contractors.

License Renewal

Contractor's Excise Tax License

The DOR contractor's excise tax license has no renewal cycle — it remains valid until canceled or revoked. However, if ownership changes or the business closes or is sold, the license must be canceled within 15 days and a final return and payment must be submitted. See SDCL Chapter 10-46A for details.

Electrical License Renewal

South Dakota electrical licenses expire at midnight on June 30 of even-numbered years (the next renewal deadline is June 30, 2026). Renewal requires continuing education:

• 16 hours of CE must be completed by renewal or June 30
• At least 8 hours must cover the National Electrical Code
• No more than 8 hours may be correspondence or interactive online courses
• All courses must be Commission-approved or preapproved
• CE records must be uploaded through the Commission's system

For grace period and reinstatement fee details, verify with the Electrical Commission laws and rules page.

Plumbing License Renewal

Plumbing licenses expire annually on December 31. Renewal requires continuing education:

• 4 hours of CE during the prior calendar year
• At least 2 hours must be code-related
• Applies to plumbing contractors, restricted plumbing contractors, plumbers, restricted plumbers, and third-year apprentice plumbers

Plumbing Reinstatement

If your plumbing license has expired:

• Less than 1 month expired: Use the renewal form
• More than 1 month but less than 1 year expired: Use the reinstatement form
• Apprentices: Must contact the Plumbing Commission office directly

Reciprocity with Other States

Contractor's Excise Tax License

The DOR does not offer reciprocity waivers for the contractor's excise tax license. Out-of-state businesses may apply through the Streamlined Sales Tax System for tax licensing convenience.

Electrical Reciprocity

The South Dakota Electrical Commission maintains reciprocal agreements with 14 states:

• Alaska
• Arkansas
• Colorado
• Idaho
• Iowa
• Minnesota
• Montana
• Nebraska
• New Hampshire
• New Mexico
• North Dakota
• Oklahoma
• Texas
• Wyoming

To qualify for reciprocity, you must have earned your out-of-state license by examination and held it in active status for at least one year, unless otherwise specified. License class limits vary by state — check the reciprocity page for details on each agreement.

Plumbing Reciprocity

The Plumbing Commission may reciprocate for nonresidents from states with substantially equivalent licensing standards. Requirements include:

• You must have been licensed by examination in the other state
• The other state's plumbing code and licensure standards must be similar or equal-to-or-higher than South Dakota's
• Reciprocity applicants must provide proof of license by exam, license verification, and proof of completion of 4 hours of continuing education

The Commission does not publish a state-by-state list of approved reciprocal states. Contact the Plumbing Commission to confirm whether your state qualifies.

NASCLA

Official South Dakota sources do not indicate that the state accepts the NASCLA accredited exam for general, electrical, or plumbing contractor licensing. Verify with the DOR, Electrical Commission, or Plumbing Commission for the most current information.

How to Verify a Contractor's License

Plumbing License Verification

The Plumbing Commission publishes rosters of licensed plumbers and specialty licensees. Start at the Plumbing Consumer Information page, which links to the current rosters.

Electrical License Verification

The Electrical Commission does not appear to publish a public license-lookup tool on its website. Contact the Electrical Commission directly to verify an electrician's or electrical contractor's license status.

DOR Contractor's Excise Tax License Verification

The DOR does not appear to provide a public contractor's excise tax license lookup tool. Contact the Department of Revenue to verify a contractor's tax license status.

Contact Information

Penalties for Working Without a License

Operating Without a Contractor's Excise Tax License

Under SDCL 10-45-48.1, operating a taxable business without the required tax license carries escalating penalties:

• Class 1 Misdemeanor: Up to $1,000 fine and/or 1 year in jail
• Class VI Felony (for continuing after DOR notice): Up to $4,000 fine and/or 2 years in the state penitentiary

Contractors must also post their excise tax license number with any building permit where a political subdivision requires one.

Unlicensed Electrical Work

Engaging in electrical contracting or electrical work without complying with SDCL Chapter 36-16 is a Class 2 misdemeanor. The Electrical Commission may also refuse, suspend, revoke, or limit a license for code or law violations, failure to notify the Commission of certain events, aiding unlicensed practice, or a crime-of-violence conviction or plea. The Commission investigates complaints related to electrical wiring.

Unlicensed Plumbing Work

The Plumbing Commission publishes a complaint path for consumers and maintains rosters of licensed professionals. For specific penalties for unlicensed plumbing work, verify with the Plumbing Commission directly.

Frequently Asked Questions

Does South Dakota require a general contractor license?

South Dakota does not have a statewide general contractor competency license. However, all contractors must obtain a contractor's excise tax license from the Department of Revenue before starting any construction work. Electrical and plumbing work require separate trade licenses from their respective state commissions.

How much does it cost to get licensed as a contractor in South Dakota?

The contractor's excise tax license is free — no application, license, or renewal fees. For trade licenses, costs vary: an electrical contractor license totals $260 (application plus license fee), plus exam fees up to $150 and bond/insurance costs. Plumbing exam fees range from $50 to $100. Contact the respective commissions for complete fee schedules.

How long does it take to become an electrical contractor in South Dakota?

The minimum path is 6 years: 4 years (8,000 hours) as an apprentice to qualify for the journeyman exam, then 2 more years (4,000 hours, including 2,000 hours of commercial work) to qualify for the electrical contractor exam. Applicants with a 2-year or 4-year electrical degree may receive credit toward the experience requirement.

Does South Dakota have electrical reciprocity with my state?

The Electrical Commission has reciprocal agreements with 14 states: Alaska, Arkansas, Colorado, Idaho, Iowa, Minnesota, Montana, Nebraska, New Hampshire, New Mexico, North Dakota, Oklahoma, Texas, and Wyoming. You must have earned your license by examination and held it in active status for at least one year. Check the reciprocity page for class limits specific to each state.

Do I need to renew my South Dakota contractor's excise tax license?

No. The contractor's excise tax license has no renewal cycle and remains valid until canceled or revoked. However, if your business changes ownership, closes, or is sold, you must cancel the license within 15 days and file a final return.

What are the continuing education requirements for electrical and plumbing licenses?

Electrical licensees must complete 16 hours of CE every two years (by June 30 of even-numbered years), with at least 8 hours on the National Electrical Code. Plumbing licensees must complete 4 hours of CE annually (by December 31), with at least 2 hours of code-related content.

Conclusion

South Dakota's contractor licensing system is less centralized than many states, but that does not reduce its requirements. Every contractor needs the DOR's excise tax license, and electrical and plumbing professionals must meet rigorous experience, examination, and insurance standards through their respective state commissions. Understanding which licenses apply to your trade — and staying current with renewal and continuing education requirements — is essential for operating legally in South Dakota.

Start your contractor's excise tax license application at apps.sd.gov. For electrical licensing, visit the Electrical Commission. For plumbing licensing, visit the Plumbing Commission. For general questions about the contractor's excise tax, call the DOR at 1-800-829-9188.

This article is provided for informational purposes and was last updated in April 2026. Licensing requirements, fees, and regulations are subject to change. Always verify current requirements directly with the South Dakota Department of Revenue, the Electrical Commission, or the Plumbing Commission.