How to Start an HVAC Business in Mississippi

Starting an HVAC business in Mississippi means coordinating across the Secretary of State's office, the MSBOC, the EPA, your CPA, your insurance broker, and at least one municipal building department — in a specific sequence. Trying to schedule your state exams before the board approves your application, or pulling permits without an active city bond where one is required, creates delays that can push your launch back by months.

Here's the order that actually works.

Step 1: Get Your EPA Section 608 Certification

Before anything else on the state or local level, secure your EPA Section 608 certification. This federal credential authorizes you to handle refrigerants, which you need for virtually any HVAC service work. Universal certification (covering all system types) is the practical choice for an independent contractor.

The exam is administered by EPA-approved organizations like the ESCO Institute, ACCA, or Ferris State University. It typically costs $100–$150 and remains valid indefinitely once you pass. You need this credential to legally purchase bulk refrigerant — operating without it carries federal civil penalties.

Step 2: Form Your Business Entity

File your LLC Articles of Organization (or Articles of Incorporation, if you prefer a corporation) with the Mississippi Secretary of State. The filing fee is $50, and standard online processing takes 24–48 hours.

This step matters for one specific reason: the MSBOC requires your business entity to be registered and in "Good Standing" with the Secretary of State before you can submit a license application. The business name on your SOS registration must match exactly across every subsequent document — your MSBOC application, insurance policies, bank references, and local permits.

Sole proprietors skip the SOS filing but must operate under their legal name. The trade-off is that sole proprietorships don't provide liability separation.

Step 3: Get Your CPA-Reviewed Financial Statement

This is the step that takes the longest and catches the most people off guard.

Commercial and residential license applicants need a balance sheet prepared by an independent CPA within the past 12 months, formatted as a formal review or audit under GAAP standards. The MSBOC explicitly rejects compiled statements — where the CPA transcribes your numbers without analytically verifying them.

The net worth minimums:

• Commercial HVAC Specialty: $20,000
• Major Mechanical Classification: $50,000
• Residential: No set net worth minimum for residential subcontractors, but you need a bank reference letter verifying active, stable accounts

Budget $500–$2,000 for the CPA review depending on the firm, and start this process at least three months before you plan to submit your license application. Organizing your assets and documentation before meeting with the CPA cuts billable hours significantly.

Step 4: Secure Insurance

Commercial applicants need CGL coverage of at least $300,000 per occurrence and $600,000 aggregate. The MSBOC must be listed as the certificate holder so they receive automatic lapse notifications.

Businesses with five or more workers (including part-time and working officers) also need workers' compensation insurance filed with the board.

Get your policies bound and certificates issued before submitting the MSBOC application — the board won't process your application without them.

Step 5: Submit Your MSBOC Application

With your SOS registration, CPA financial statement, and insurance certificates in hand, submit the completed, notarized application to the MSBOC. Include:

• Three professional references
• Tax registration numbers
• Proof of the qualifying party's employment (W-2, pay stub, or SOS officer listing)

The application fee is $400 for commercial or $50 for residential. The board reviews applications weekly on Fridays.

Step 6: Pass Your PSI Exams

Once the board approves your application, they transmit your eligibility to PSI Exams. You have six months to pass both:

• The Mississippi Law and Business Management Exam (50 questions, 2 hours, 70% to pass)
• Your technical trade exam (80 questions for HVAC specialty or 100 for Mechanical, 4 hours, 70% to pass)

Each portion costs $120. Both exams are open-book. If you don't pass both within six months, your application is destroyed and you start over.

Step 7: Register Locally and File Municipal Bonds

With your state license active, register with each municipal building department where you plan to work. Many cities require a local contractor license bond:

• Jackson: no local license or permit bond; state licensure verification applies
• Ridgeland: $5,000
• DeSoto County: $5,000
• Tupelo: $10,000 (expires September 30 of the fiscal year)
• Southaven: $10,000
• Meridian: $10,000
• Brandon: $10,000

These bonds typically cost $100–$250 annually through a surety provider. You cannot pull permits in a municipality until the local registration and any required bond are in place.

Step 8: Set Up Tax Accounts

Register with the Mississippi Department of Revenue for sales and use tax. If you're an out-of-state contractor entering Mississippi, you'll need to post a tax bond on contracts exceeding $10,000. In-state contractors need a tax bond on non-residential contracts exceeding $75,000.

The Timeline

Realistically, the fastest path from deciding to start a business to pulling your first permit looks like this:

• Weeks 1–2: EPA 608 certification, SOS filing
• Weeks 2–8: CPA financial statement preparation
• Weeks 8–10: Insurance binding, application submission
• Weeks 10–12: Board review and PSI eligibility
• Weeks 12–20: Exam scheduling and completion
• Week 20+: Municipal registration and first permit

That's roughly five months if everything goes smoothly — and longer if you need a CPA review retake, fail an exam portion, or miss a document in your application package.

The Mississippi HVAC License Guide maps this entire sequence with the specific documentation checklist for each step, so nothing falls through the cracks between agencies.

See more Mississippi guides →