HVAC Contractor Permit Requirements in Birmingham, AL

1. EIN (Employer Identification Number)

   Required if you have employees or operate as an LLC or corporation. Free from the IRS.

   Official government source

   Free·Immediate (online application)

   Free

   Immediate (online application)

1. Alabama Department of Revenue - Sales Tax License

   Required for businesses making retail sales of tangible personal property in Alabama. Alabama sales tax is a privilege tax on retail sales; most services are not taxable, so service-only businesses may not need to register. Local city and county sales taxes are also due on top of the state rate and vary by jurisdiction - use ADOR's local tax rate lookup for your address. Register with the Alabama Department of Revenue via My Alabama Taxes (MAT); state and local returns are filed together through ONE SPOT.

   Official government source

   No registration fee is published by ADOR; registration is made through the My Alabama Taxes portal·Not published by ADOR; confirm current processing time with the Department of Revenue

   No registration fee is published by ADOR; registration is made through the My Alabama Taxes portal

   Not published by ADOR; confirm current processing time with the Department of Revenue

2. EPA Section 608 Technician Certification (for refrigerant handling)

   Federal law under Clean Air Act Section 608 requires technicians who maintain, service, repair or dispose of equipment that could release ozone-depleting refrigerants to be certified, and prohibits knowingly venting refrigerants. Certification is by type: Type I (small appliances), Type II (high-pressure), Type III (low-pressure) and Universal, each requiring the Core section plus the type-specific section. Testing is conducted by EPA-approved certifying organizations, and certification does not expire.

   Official government source

   EPA does not set or publish an exam fee; each EPA-approved certifying organization sets its own price - confirm with the testing organization you use·Not published by EPA; depends on the certifying organization's exam scheduling

   EPA does not set or publish an exam fee; each EPA-approved certifying organization sets its own price - confirm with the testing organization you use

   Not published by EPA; depends on the certifying organization's exam scheduling

1. Alabama Licensing Board for General Contractors (Mechanical classification) - required only for projects $100,000 or more

   Alabama has no statewide HVAC-specific contractor license; the Alabama Electrical Contractors Board licenses only electrical contractors and journeyman electricians. HVAC/mechanical contractors bidding or performing work valued at $100,000 or more (labor plus materials) must be licensed by the Alabama Licensing Board for General Contractors under the Mechanical classification and pass the Business & Law exam. Below that threshold no state contractor license applies - only local business licensing and EPA Section 608 certification for refrigerant handling.

   Official government source

   $300 application fee for a prime contractor license (jobs $100,000+); no state contractor license fee below that threshold·The General Contractors board reviews applications at quarterly meetings and requires a complete application on file roughly 30 days beforehand; there is no fixed week-count processing window

   $300 application fee for a prime contractor license (jobs $100,000+); no state contractor license fee below that threshold

   The General Contractors board reviews applications at quarterly meetings and requires a complete application on file roughly 30 days beforehand; there is no fixed week-count processing window

2. City of Birmingham Tax and License Administration Division — Business License

   Every person, firm, or entity doing business within Birmingham city limits must register with the City of Birmingham Finance Department and obtain a city business license from its Tax and License Administration (Revenue) Division, under the Business License Code (Ordinance No. 97-183, as amended). Apply on the Application for Tax Certificate (ATC) form in person at City Hall, Room TL-100, 710 North 20th Street, Monday–Friday 8:00 a.m.–5:00 p.m. The business address must first be zoning-approved by the Department of Planning, Engineering and Permits, and a home-based business must first execute a Home Occupation Certificate of Agreement with that department. Supporting documents vary by entity and activity — Articles of Incorporation for corporations, a Health Department permit for food and eating establishments, a Zoning Certificate of Operation plus a county or state license for day care centers, and proof of state licensure for regulated trades such as master electricians, master plumbers, and HVAC contractors. Each business location requires its own license. Licenses expire December 31; general business renewals are due February 15 (alcoholic beverage January 15, insurance companies March 4), and the license must be posted in a conspicuous place at the business. The city's Occupational Tax is a separate employer withholding obligation, not this license.

   Official government source

   Set by classification under the Business License Code (Ordinance No. 97-183, as amended); most Birmingham licenses are gross-receipts-based, calculated on twelve months of actual or annualized gross receipts, so there is no flat fee band or cap — a higher-revenue business pays more. A new gross-receipts business is generally issued a license in a minimum amount at application; after the first ninety days of business it must file a sworn affidavit of gross receipts for that period, which is annualized to compute actual license liability for the current and, in some cases, the second year, with amounts already paid credited and any balance billed. There is no proration if the business is discontinued. Confirm the rate and minimum for your classification with Tax and License Administration at (205) 254-2198.·New non-controlled license applications are taken and processed in person Monday–Friday during office hours, so a complete ATC package (including zoning approval and any required state or health documentation) is handled at the counter rather than over weeks; an incomplete application delays processing and issuance. Controlled licenses — alcoholic beverage, dance establishments serving alcohol, pool tables, junk yards, and solid waste facilities — are by appointment only and require separate approval, including by the Birmingham City Council, so they take substantially longer.

   Set by classification under the Business License Code (Ordinance No. 97-183, as amended); most Birmingham licenses are gross-receipts-based, calculated on twelve months of actual or annualized gross receipts, so there is no flat fee band or cap — a higher-revenue business pays more. A new gross-receipts business is generally issued a license in a minimum amount at application; after the first ninety days of business it must file a sworn affidavit of gross receipts for that period, which is annualized to compute actual license liability for the current and, in some cases, the second year, with amounts already paid credited and any balance billed. There is no proration if the business is discontinued. Confirm the rate and minimum for your classification with Tax and License Administration at (205) 254-2198.

   New non-controlled license applications are taken and processed in person Monday–Friday during office hours, so a complete ATC package (including zoning approval and any required state or health documentation) is handled at the counter rather than over weeks; an incomplete application delays processing and issuance. Controlled licenses — alcoholic beverage, dance establishments serving alcohol, pool tables, junk yards, and solid waste facilities — are by appointment only and require separate approval, including by the Birmingham City Council, so they take substantially longer.

3. City of Birmingham Mechanical Permit (per project)

   A mechanical permit must be obtained from the City of Birmingham's Permitting & Inspection Division for each HVAC installation, replacement, or major repair inside the city limits (Jefferson County handles work outside the city). A final inspection is required upon completion, and the signed inspection card is returned to close the permit.

   Official government source

   No mechanical permit fee is published by the division; confirm the current fee with permitting at 205-254-2904·Not published; confirm with the Permitting & Inspection Division (inspection scheduling 205-254-2211)

   No mechanical permit fee is published by the division; confirm the current fee with permitting at 205-254-2904

   Not published; confirm with the Permitting & Inspection Division (inspection scheduling 205-254-2211)

Official Sources

• Alabama Electrical Contractors Board — HVAC Contractor License
• City of Birmingham License and Revenue Division
• EPA Section 608 Certification

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