Most U.S. employees never sign an "employment agreement" in the formal sense. They sign an offer letter that confirms role and pay, and the rest of the relationship is governed by at-will rules plus whatever policies are in the employee handbook . But for certain roles (executives, commission-heavy sales, roles with deep access to trade secrets), a formal employment agreement makes sense. It clarifies expectations, sets severance and termination rules, and can prevent costly disputes. This page walks through what goes into an employment agreement, when to use one versus a simpler offer letter, and the clauses that most often cause friction if you get them wrong.
What an Employment Agreement Typically Covers
The basic structure includes position and duties, term (often at-will but sometimes for a fixed period), compensation (base salary, bonus structure, equity grants), benefits, and termination rights. Most agreements add clauses for confidentiality, intellectual property assignment, non-solicitation of employees and customers, non-competition (where enforceable), and dispute resolution (often arbitration).
Executive agreements add more: change-of-control triggers, severance on termination without cause or resignation for good reason, equity acceleration, indemnification, and board removal terms. These are the clauses where real money changes hands, which is why executive negotiations can take weeks.
Offer Letter vs. Employment Agreement: When to Use Each
An offer letter is usually one to three pages. It confirms role, start date, compensation, benefits, at-will status, and any contingencies (background check, references). It's fast to produce, easy for the candidate to sign, and works for most roles.
A full employment agreement makes sense when the role involves significant business risk (trade secrets, customer relationships, key leadership), when the candidate is negotiating from strength (senior executives, specialists with scarce skills), or when state law requires specific protections (e.g., California's restrictions on certain restrictive covenants).
What's the Difference Between At-Will and Contract Employment?
At-will means either party can end the relationship at any time for any legal reason. Contract employment binds both parties to the terms in the agreement, including any restrictions on how and when termination can happen. Most U.S. employees are at-will; most U.S. executives are under some form of contract with defined severance and termination rights.
Clauses That Most Often Cause Disputes
Non-compete clauses have become contentious. The FTC issued a 2024 rule that would have banned most non-competes, though courts blocked the rule before it took effect. State law still governs: California, North Dakota, and Oklahoma ban most non-competes outright. Many other states limit them to high earners or require specific consideration. The FTC non-compete rule page has the latest regulatory status.
Arbitration clauses, severance triggers, IP assignment language (especially for prior inventions), and definitions of "cause" for termination are the other high-friction areas. For any agreement involving executives, senior engineers, or commission-heavy sales, run the draft by employment counsel before sending.
Handling Employment Agreement Changes Over Time
When terms change (promotion, new comp structure, relocation), document the change in an amendment rather than letting the original agreement become ambiguous. Each amendment should reference the original, state what's changing, and include both signatures. Keep the signed originals in a central document management system with restricted access; employment agreements are some of the most sensitive HR files you hold.
For multi-state workforces, confirm the agreement template complies with each state's requirements before using it. The U.S. Department of Labor and state labor agencies publish guidance on required notices, wage posting, and specific contract language. Work with employment counsel on state-by-state templates, and review them annually as laws evolve, especially around wage transparency, non-competes, and pay equity obligations.
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