2.1 Business Organizational Structure

2.1 Business Organizational Structure

Florida HVAC contractors lose Business & Finance (B&F) points when they treat the company as if it were the license. Chapter 489 of the Florida Statutes is the opposite: the qualifying agent (QA) is always a natural person, and the business organization is what that person qualifies. Area A of the B&F exam — Establishing the Contracting Business — is 11% of 120 questions, roughly 13 items. Organizational form, tax consequences, fiduciary duty, and the QA chain of responsibility sit at the center of that cluster. The 2026 B&F references that carry this material are Florida Statutes Chapter 455 (2025 edition), the Contractors Manual 2025 (used beginning February 1, 2026), and Builder's Guide to Accounting (2001).

Sole proprietorship, partnership, LLC, C-corporation, and S-corporation

A sole proprietorship is the owner doing business in the owner's legal name or a fictitious name. Under F.S. 489.119(1), if you contract in your own name or as a sole proprietorship under a fictitious name, registration or certification may be issued only to that individual. There is no liability shield. Injured customers, unpaid suppliers, and the Construction Industry Licensing Board (CILB) look through to you. Federal income tax is pass-through on Schedule C of Form 1040, plus self-employment tax at 15.3% of net earnings (12.4% Social Security up to the annual wage base and 2.9% Medicare with no cap). Florida has no individual income tax, so the sole proprietor does not pay a second state income tax on those profits. That tax simplicity is real. Unlimited personal liability is also real.

A partnership under Chapter 620 is two or more persons carrying on a business for profit. General partners share profits, losses, and joint and several liability. Partnerships file federal Form 1065 and issue Schedule K-1s; they do not pay federal entity-level income tax. For CILB purposes a partnership is a business organization under F.S. 489.105(13). You cannot simply “use the partner’s license.” F.S. 489.119(2) requires the applicant to apply for registration or certification as the qualifying agent of the business organization and to list the partnership and its partners by name. A joint venture, including a joint venture of already-qualified companies, is itself a separate organization that must be qualified under board rules (489.119(2)(e)).

A limited liability company (LLC) formed under Chapter 605 is the structure most Florida HVAC start-ups actually file. Articles of organization go to the Florida Division of Corporations (Sunbiz). Official Sunbiz fees for a new Florida LLC are a $100 filing fee plus a $25 registered-agent fee ($125 total). An LLC is a state-law entity, not a federal tax classification. Default Internal Revenue Service treatment: a single-member LLC is a disregarded entity (Schedule C); a multi-member LLC is a partnership (Form 1065). Members may elect C-corporation treatment on Form 8832 or S-corporation treatment on Form 2553. The operating agreement and the CILB qualifying affidavits must match. F.S. 489.119(2)(b) requires the QA to attest to final approval authority on all construction work and on all business matters — contracts, specifications, checks, drafts, or payments — unless a financially responsible officer (FRO) is approved.

A C-corporation under the Florida Business Corporation Act, Chapter 607, is a separate taxable person. It files federal Form 1120. The federal corporate rate is a flat 21%. Florida then imposes corporate income/franchise tax on corporations, including entities taxed federally as corporations, at 5.5% of Florida net income after a $50,000 exemption (Florida Department of Revenue; that 5.5% rate applies to taxable years beginning on or after January 1, 2022). Shareholders who take remaining profits as dividends pay a second federal tax. That is double taxation. C-corporations may have unlimited shareholders, multiple classes of stock, and entity owners, which matters if you later want outside capital. They are heavier to administer: articles, bylaws, board minutes, and Florida Form F-1120 even when little tax is due.

An S-corporation is a federal tax election, not a Florida entity type. Eligible corporations — and LLCs that elect corporate tax treatment — file IRS Form 2553. Limits the exam tests: no more than 100 shareholders, one class of stock, and eligible shareholders (United States individuals and certain trusts; no nonresident-alien, partnership, or corporate owners). S-corporations generally pay no federal entity-level income tax; income passes through on Form 1120-S and Schedule K-1. Florida generally does not tax S-corporations at the entity level unless the S-corporation pays federal tax on specified lines of Form 1120-S. Owners who work in the business must take reasonable W-2 wages; remaining profit can be distributed without self-employment tax. That payroll discipline is a common reason a profitable HVAC LLC elects S status — and a common CILB/surety red flag when the qualifier draws only distributions and no wage.

Open versus closed corporations

B&F materials distinguish open and closed corporations. A closed corporation (closely held) does not offer stock to the public. Ownership is concentrated — often a family HVAC shop — and stock transfer is typically restricted by a shareholder agreement. Florida permits unanimous written shareholder agreements for corporations with fewer than 100 shareholders (F.S. 607.0732) to set transfer and governance rules, but those agreements cannot wipe out the fiduciary duties of officers, directors, and controlling shareholders. An open corporation may sell stock to the public, has many shareholders, and carries heavier securities and reporting obligations. Almost every HVAC contractor on this exam is a closed corporation or an LLC. Do not confuse “closed corporation” with “S-corporation”: S is a tax election; closed versus open describes how stock is held and transferred.

Fiduciary duties of officers and directors

F.S. 607.0830 requires each director, when discharging board duties, to act in good faith and in a manner the director reasonably believes to be in the best interests of the corporation. When becoming informed for a decision or performing oversight, directors must use the care that an ordinarily prudent person in a like position would reasonably believe appropriate. Officers owe parallel duties of care and loyalty: they may not divert corporate opportunities, compete with the company using company crews or customer lists, or approve related-party equipment leases that enrich themselves at the corporation’s expense. The business judgment rule protects informed, good-faith decisions that later turn out poorly. It does not protect self-dealing, a lapse in CILB insurance, or ignoring job-cost losses until suppliers are unpaid.

Those Chapter 607 duties sit beside Chapter 489 duties. F.S. 489.105(4) defines a primary qualifying agent as the person who supervises, directs, manages, and controls the contracting activities of the business organization and the construction activities on jobs for which that person obtained the permit. F.S. 489.105(5) defines a secondary qualifying agent as the person responsible for construction activities on jobs for which that person obtained the permit. F.S. 489.105(14) defines an FRO as a person other than the primary QA who, with board approval, assumes personal responsibility for all financial aspects of the business organization.

Under F.S. 489.1195(1)(a), all primary qualifying agents are jointly and equally responsible for supervision of all operations of the business organization, for all field work at all sites, and for financial matters, both for the organization in general and for each specific job — unless the board approves an FRO. An FRO (489.1195(1)(b)) is responsible for all financial aspects and may not be designated as the primary QA. If an FRO is in place, the primary QA remains responsible for all construction activities (489.1195(1)(c)). Board rules for FROs must include net worth, cash, and bonding requirements at least as extensive as those for qualifying agents (489.1195(1)(d)); do not invent a single published HVAC dollar figure for that FRO bond. Secondary QAs, designated by a board-approved joint agreement, are responsible only for field work at sites where their license pulled the permit and for other work they accept; they are not responsible for supervision of financial matters (489.1195(2)(e)).

Org chart and chain of responsibility

Draw the chart from the license out, not from the owner out. The CILB certificate belongs to the individual QA. The business organization is qualified by that person. For a new Class A HVAC company that is qualifying a business, the form is DBPR CILB 6-G, Application for Certified Class-A Air Conditioning Contractor Who is Qualifying a Business (effective July 2024; Rule 61-35.010). Class B uses CILB 6-H. Contracting as an individual with no entity uses CILB 5-G. Qualifying an additional business later requires a new application, payment of a fee equal to the original registration or certification fee, and evidence the QA can supervise each organization (F.S. 489.119(6)). Approval of each additional organization is discretionary with the board.

If the only QA ceases to be affiliated, F.S. 489.119(3)(a) requires notice to the Department of Business and Professional Regulation (DBPR) and gives the business organization 60 days to employ another QA. The organization may not engage in contracting until a QA is employed, unless the executive director or chair of the board grants a temporary, nonrenewable certificate to the FRO, president, partner, or, in a limited partnership, the general partner. That temporary ticket covers incomplete contracts only — contracts already awarded or entered into, or jobs on which the firm was the low bidder and the contract is later awarded. It is not a hunting license for new bids.

Chapter 455 (2025 edition on the B&F list) is the umbrella professional-regulation chapter. DBPR licenses and disciplines under that chapter as well as Chapter 489. Unlicensed contracting, fraud, and failure to maintain required insurance or financial responsibility are department-level problems, not merely “company” problems. The individual QA remains the named professional.

Florida HVAC scenario

Maria holds a certified Class A air-conditioning license. She forms Gulf Breeze Mechanical, LLC on Sunbiz, names herself managing member, and files CILB 6-G to qualify the LLC. She later hires her brother Luis, also Class A certified, as a project manager. They execute a joint agreement designating Maria as sole primary QA and Luis as secondary QA; CILB approves it. Luis pulls the permit on a 40-ton rooftop job in Pensacola. If the condenser is set wrong, Luis is responsible for that site’s field work and Maria is jointly responsible for field supervision. Maria — unless an FRO is designated — remains responsible for whether the LLC paid the equipment vendor. If Maria later sells her membership units to an unlicensed investor, the LLC does not become licensed through the investor. The certificate never belonged to the LLC. If Maria then resigns as QA, the LLC has 60 days to employ another qualifier and cannot take new contracts in the gap.

The exam trap is always the same: ownership is not licensure, a tax election is not a liability shield by itself, and a secondary QA does not take the primary’s financial duties unless the board has approved an FRO.