Business Structures and Internal Governance

REG entity-law coverage for legal characteristics, formation, governance, authority, and compliance.

This chapter explains the legal structure of the entities that appear throughout REG tax and business-law questions. Understanding how entities differ in formation, governance, authority, and continuity makes later tax consequences easier to analyze.

Business-structure questions often turn on legal consequences before tax treatment. Liability, authority, continuity, transferability, fiduciary duties, and governing documents determine what the parties can do and who bears the risk.

In This Chapter

Entity Law Lens

Structure issue What to decide first Common REG trap
Entity characteristics Liability exposure, continuity, ownership transfer, and management form. Choosing an entity based only on tax treatment.
Formation and termination Which legal steps create, alter, or end the entity. Assuming operations alone create every legal form.
Authority and duties Who can bind the entity and what duties owners or managers owe. Confusing ownership rights with management authority.
Governing documents Which agreement, statute, or internal rule controls the dispute. Ignoring operating agreements, bylaws, or partnership agreements.

Entity Structure Sequence

Step What to identify Legal consequence
Determine entity form Sole proprietorship, partnership, corporation, LLC, or hybrid structure. Form controls liability, governance, and continuity.
Confirm formation status Filing, agreement, conduct, ownership, and statutory requirements. Rights and duties depend on whether the entity legally exists.
Identify authority Owner, partner, manager, officer, agent, or board authority. Authority determines who can bind the entity.
Review duties and liability Fiduciary duties, personal liability, limited liability, and creditor exposure. Legal exposure often controls the answer before tax treatment.
Apply governing documents Operating agreement, partnership agreement, bylaws, or statute. Internal documents can change default rules.

Structure Comparison Checkpoints

Checkpoint What to compare Common legal consequence
Formation Filing, agreement, conduct, ownership, and statutory compliance. Some forms require formal filing while others can arise from conduct.
Liability shield Owner personal exposure, entity obligations, and exceptions. Limited liability does not protect every actor from their own misconduct.
Management authority Agent, partner, member, manager, officer, director, or board control. Ownership does not always equal authority to bind the business.
Transferability and continuity Whether ownership interests can transfer and whether the entity survives owner changes. Exit or transfer facts can change rights without ending the business.
Governing rule source Default statute, agreement, bylaws, operating agreement, or fiduciary standard. Internal documents may override default rules when permitted.

How to Use This Chapter

  • Read this chapter before advanced entity-tax chapters if the legal structure is still fuzzy.
  • Focus on which characteristics drive liability, authority, continuity, and administrative requirements.
  • Revisit it whenever a REG question asks you to separate legal form from tax treatment.

In this section

Revised on Monday, June 15, 2026