How to Get Your
Mississippi Plumbing License
Your complete guide to becoming a licensed plumber in Mississippi. Learn about requirements, exams, costs, and the step-by-step process to launch your plumbing career.

Mississippi Plumbing License Quick Facts
Minimum Age
18 years old
Experience Required
Not mandatory
License Fee
$50 - $400
Licensing Body
MSBOC
License Threshold
$10K-$50K
Education Required
High school diploma/GED
Who Issues Plumbing Licenses in Mississippi?
We bet you don't know that plumbing is one of the high-paying jobs in Mississippi state of the US. The average salary of a plumber in Mississippi is $40,153 annually. This is near the national average plumber's salary of $55,337 per year. However, with the right courses and certifications, you can even make up to $84,000. As per the projections made by the US Bureau of Labor and Statistics, the plumbing industry will grow by 14% between 2021 to 2031.
However, there are different licensing requirements statewide. Mississippi mandates that plumbing contractors have licenses after exceeding certain monetary thresholds.
Mississippi Licensing Authority
Mississippi State Board of Contractors
MSBOCIssues plumbing licenses for contractors exceeding monetary thresholds ($10K residential, $50K commercial)
Monetary Threshold Requirements
Mississippi requires plumbing licenses only after exceeding certain project values. However, many local jurisdictions require licenses regardless of project value.
Mississippi Licensing Requirements
Mostly, all states of the US require plumbers to get a license, but the licensing requirements vary from state to state. If we talk about Mississippi, the plumbing license is not mandatory for the below-mentioned situations:
Type of Plumber - Delivering Project Value Up to (in dollars)
- Residential Plumber: $10,000
- Commercial Plumber: $50,000
As per the Mississippi State Board of Contractors, when the plumber exceeds the above-mentioned limit, he or she is mandated to have a plumbing license.
Despite the standard requirements set by the MSBOC - a contractor licensing authority, many local jurisdictions - cities, towns, and counties require a plumber to have a local license, even within the monetary thresholds.
For instance, when you are serving in cities like Gulfport and Ocean Springs of Mississippi state, you are required to apply for plumbing licenses and pass the required plumbing examination. A local license is mandatory here, irrespective of the fact that you are delivering within or outside the monetary threshold limits.
The application formats for availing the plumbing contractors license in Gulfport and Ocean Springs are given here:
Types of Plumbing Licenses in Mississippi
There are basically two types of licenses available in Mississippi: unlimited commercial plumbing license and unlimited residential plumbing license.
License Types Available
Choose Your License Path
Unlimited Residential Plumbing License
For plumbing contractors working on residential projects exceeding $10,000 in value.
Key Requirements
- Be at least 18 years of age
- High school diploma or GED
- Pass plumbing and business management exams
Unlimited Commercial Plumbing License
For plumbing contractors working on commercial projects exceeding $50,000 in value.
Key Requirements
- Be at least 18 years of age
- High school diploma or GED
- Pass plumbing and business management exams
Mechanical Contractor License
Major classification for contractors performing multiple mechanical specialty works.
Key Requirements
- Net worth of at least $50,000
- Pass comprehensive mechanical contractor exam
- Knowledge of multiple specialties beyond plumbing
Commercial vs Residential License Scope
The tasks performed by commercial and residential plumbers are almost similar. However, residential contractors cannot do plumbing contracting jobs in commercial buildings exceeding 7,500 square feet.
The tasks performed by commercial as well as residential plumbers are almost similar. The unlimited commercial plumber is required to undergo certain plumbing jobs like pipe installation, fixture removals, and repairs for commercial buildings.
The residential plumber can perform all these duties specified above. The only exception lies when residential contractors serve the plumbing services in commercial buildings. They cannot do plumbing contracting jobs in commercial buildings exceeding 7,500 square feet.
Specialty Classifications
Mississippi breaks down commercial licenses into major and specialty classifications. The major classification for commercial plumbing work includes Mechanical contractor.
Other than this, there are 16 specialty classifications made by the Mississippi state board, which fall under the major classification of mechanical contractors license. Among those 16 specialties, a few are listed here:
- Boiler Installation and Repair
- Irrigation Systems
- Plumbing
- Process Piping
- Welding
If you are serving several commercial works listed in the specialty classifications, then you need to avail of the mechanical contractor license. However, when you are focused just on the plumbing work, then apply for a Mississippi plumbing license or on any one of the specialties.
The scope of examinations and financial obligations are different:
Types of License - Net Worth Requirements
- Mechanical Contractor: Net worth of at least $50,000
- Specialty License: Net worth of at least $20,000
The examination for a mechanical contractor is rigorous, requiring knowledge of more than one subject than plumbing alone.
Requirements for Mississippi Plumbing Licenses
Basic Requirements to Acquire Mississippi Plumbing License
To avail of the plumbing license in Mississippi, an individual must possess these basic requirements:
- You are not required to attend any apprenticeship program; just the age and qualification criteria are a must.
- Your age should be at least 18 years old.
- Along with this, you must have a high school diploma or any GED for that matter.
This is the basic process that you must follow while availing of the Mississippi plumbing license.
In Mississippi, beginners, or the ones who want to start a plumbing business and get a license, are not mandated to enroll in Mississippi plumbing apprenticeships. However, for self-improving, you can attend certain plumbing trade and vocational schools in Mississippi offering apprenticeship-like programs.
MSBOC Requirements
Mississippi Plumbing License Requirements
1Age and Education Requirements
Basic qualifications
Age and Education Requirements
Basic qualifications
- Be at least 18 years of age (16+ with parental permission for entry-level work)
- High school diploma or equivalent GED
- Valid Mississippi driver's license and/or identification card
- Physically capable of performing plumbing duties
2Business Registration Requirements
For corporations, LLCs, or LLPs
Business Registration Requirements
For corporations, LLCs, or LLPs
- Registered with MS Secretary of State's office
- Certificate of good standing
- Mississippi Income Tax I.D. number or Federal Tax I.D. number or Social Security Number
3Insurance and Financial Requirements
Required coverage
Insurance and Financial Requirements
Required coverage
- General liability insurance: minimum $300,000 per incident and $600,000 aggregate
- Workers' compensation certificate (if 5 or more employees)
- Reviewed or audited financial statements for last 12 months (prepared by CPA)
- Net worth of at least $20,000 (specialty license) or $50,000 (mechanical contractor)
4Experience and References
Documentation required
Experience and References
Documentation required
- Three reference letters: one from bank, two from construction-related contacts
- Proof of at least 3 jobs as experience in requested classifications
- Proof of employment of qualifying party (check stub, W2 form, or Owner/Officer listing)
Plumbing License Costs in Mississippi
MSBOC Fee Structure
Mississippi License Fees
| License Type | Exam Fee | License Fee | Renewal Fee |
|---|---|---|---|
| Residential License For one classification | — | $50 | |
| Commercial License Initial application fee | — | $400 | |
| Additional Classification Per additional classification | — | $100 | |
| Law & Business Management Exam | $120 | ||
| Plumbing Trade Exam | $120 |
Application Submission
The completed and notarized application, fees, and required documentation are to be sent to:
MSBOC P.O. Box 320279 Jackson, MS 39232-0279
Mississippi Plumbing Exam Details
The Mississippi plumbing examination has two sections: Mississippi law and business management exam, and the plumbing exam.
Part 1: Business Exam
Mississippi Law and Business Management Exam
Mississippi law and business management
Part 2: Trade Exam
Mississippi Plumbing Examination
Plumbing trade knowledge and skills
Exam Scheduling
- After submitting your application, the board will review it and notify PSI of your eligibility.
- You will receive exam scheduling information and materials from PSI contracting exams.
- You have 6 months from the date of eligibility to take the examination.
- If you fail the trade or law exam, you can retake it as many times as needed within that 6-month period.
Where to Take the Exam
Plumbing licensing exams can be taken at: Jackson Exam Center, 2679 Crane Ridge Dr, Suite B, Jackson, MS 39216
Exam Preparation Resources
You can inquire at the below-mentioned contact details for your exam preparation or course-related queries:
- American Contractors: 1-800-992-1910
- Mississippi Contractor Licensing Service: 1-800-432-9930
- Builders License Training Institute: 1-800-727-7104
- MyContractorsLicense: 1-877-699-0775
- Contractors Institute: 1-804-556-5518
Steps to Get Your Mississippi Plumbing License
Step-by-Step Guide
Your Path to Becoming a Licensed Plumber
Meet Basic Requirements
Be at least 18 years old and have a high school diploma or equivalent GED. Obtain a valid Mississippi driver's license.
Gain Experience (Optional)
While not mandatory, find entry-level work and get trained under Mississippi plumbing apprentice jobs to build experience.
Determine Your License Type
Choose between Residential ($10K+ projects), Commercial ($50K+ projects), or Specialty classifications based on your business needs.
Register Your Business
If applying as a corporation, LLC, or LLP, register with MS Secretary of State's office and obtain a certificate of good standing.
Contact MS Secretary of StateObtain Required Insurance
Get general liability insurance ($300K/$600K) and workers' compensation (if 5+ employees). Prepare financial statements certified by a CPA.
Complete and Submit Application
Fill out the appropriate application form with all required documentation, references, and fees.
Residential ApplicationPass the Required Exams
Take and pass both the Mississippi Law & Business Management exam (50 questions, 120 min) and the Plumbing Exam (70 questions, 180 min). Both require 70% to pass.
Congratulations! You're Licensed!
You are now a licensed plumbing contractor in Mississippi and can legally take contracts exceeding the monetary thresholds.
Pro Tip
Consider attending plumbing trade and vocational schools in Mississippi offering apprenticeship-like programs to improve your skills and marketing potential, even though it's not mandatory.
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Start Your FREE TrialReciprocity Agreements
Mississippi Reciprocity Agreements
Good news: Mississippi has reciprocity agreements with several states that allow contractors to waive the trade exam.
Contractors from other states who have held a license for three consecutive years are eligible to waive their trade exam. They are still mandated to attempt the business management exam.
States with reciprocal agreements:
- Arkansas Contractors Board
- Georgia Board of Residential and General Contractors
- Louisiana Contractors Board
- North Carolina Electrical Contractors Board
- South Carolina Contractors Board
- Tennessee Contractors Board
Frequently Asked Questions
Who issues the Mississippi plumbing license?
The Mississippi State Board of Contractors (MSBOC) issues the plumbing license. However, for working on projects valued at less than $10,000, the state board of contractors doesn't issue any license.
For this, the local jurisdictions are responsible. Similarly, for commercial plumbers, a plumbing license is not issued by MSBOC up to the project value of $50,000.
How will I get my commercial plumbing license?
- Once you fill out the commercial application form, you need to submit it to the MSBOC board, paying the necessary law and trade exam fees, along with all the required details.
- The board will review the application form and will notify the PSI of your eligibility.
- After which, you will be notified with all the necessary information regarding the exam, scheduling, and materials.
- Even a confirmation mail from PSI contracting exams will be sent to you on this.
- The state board of contractors will then determine which examination you should take.
- You will have a period of 6 months from the date of eligibility to take the examination. And the good part is, even if you fail in trade or law exam, you can take as much as retake you want in that duration of 6 months.
Are there any prerequisites for entering into the plumbing or trade schools?
Yes, there are certain essential things to focus on while taking admission to plumbing schools:
- Your age must be at least 18 years old
- You should have a high school diploma or GED
- You must possess a valid Mississippi driver's license and/or identification card
- You must be physically capable of performing plumbing duties
What does a Mississippi plumbing license application require?
The plumbing license application requires the following documents to attach:
- A certificate of good standing for submitting it to the MS Secretary of State's office
- A certificate of general liability insurance
- A certificate of insurance showing current workers' compensation (in case of more than 5 employees)
- Tax ID numbers
- 3 Reference letters: one from the bank and the other two from past co-workers or employers in the construction field
- Proof of employment of the qualifying party
- Reviewed or audited financial statements prepared by a CPA
Does Mississippi have reciprocity agreements with other states?
Reciprocity agreements are the ones that say that contractors from other states can still apply for a plumbing license in Mississippi. However, those contractors who have held a license for a period of three consecutive years are eligible to waive their trade exam. They are still mandated to attempt the business management exam.
The states with which Mississippi has reciprocal agreements are Arkansas, Georgia, Louisiana, North Carolina, South Carolina, and Tennessee.
Where can a plumbing exam be taken?
Plumbing licensing exams can be taken at: Jackson Exam Center, 2679 Crane Ridge Dr, Suite B, Jackson, MS 39216
Other than this, you can inquire at the below-mentioned contact details for your exam preparation or course-related queries:
- American Contractors: 1-800-992-1910
- Mississippi Contractor Licensing Service: 1-800-432-9930
- Builders License Training Institute: 1-800-727-7104
- MyContractorsLicense: 1-877-699-0775
- Contractors Institute: 1-804-556-5518
Conclusion
That's all for Mississippi plumbing license requirements. After walking through all the essential details regarding the plumbing license in Mississippi, you must be prepared for gearing up your plumbing business as a licensed plumbing contractor.
Stop delaying and start applying ASAP to get the fruits of having a certified plumbing degree in your hands that will ultimately help scale up your business.
Career Advice
Aim to become a licensed plumbing contractor and build your business to maximize your earning potential. With the plumbing industry projected to grow by 14% between 2021 to 2031, now is the perfect time to get licensed.
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