Not legal advice. Educational guide to general U.S. employment law. Rules vary by state — consult an employment attorney for specific cases.
01
What an offer letter is for
An offer letter does two jobs at once: it gives the candidate enough certainty to resign their current role, and it papers the terms so nobody argues later. The failure mode is doing the first job too enthusiastically — language written to excite a candidate is exactly the language a plaintiff's lawyer later reads as a promise. Every sentence should survive this test: would we be comfortable with a court enforcing this line literally?
The letter is also your first at-will document. As covered in the termination guide, a contract or promised procedure is one of the three exceptions that defeat at-will — and offer letters are where such promises most often get made by accident.
02
What to include
Position & reportingTitle, manager, location or remote designation, start date, exempt/non-exempt classification — see the
classification guide before you write this line.
Pay, per periodThe rate per pay period (with the annualized figure as an approximation), pay schedule, and bonus terms marked discretionary if they are.
Benefits by referencePoint to the plans "as they may be amended" rather than describing them — plan documents control, and you want the letter to say so.
At-will statementEmployment is at-will, either party may end it at any time with or without cause or notice, and nothing in the letter changes that.
Integration clauseThe letter supersedes prior discussions and can only be modified in a writing signed by [officer] — this is what kills "but the recruiter told me" claims.
03
Phrases that create contract claims
"Annual salary of $X"
Argued in several states as a promise of a year's employment. State the per-period rate and annualize approximately.
"Long and successful career"
Job-security talk reads as an implied promise — enthusiasm belongs in the phone call, not the document.
"Termination only for cause"
This single phrase converts at-will employment into a for-cause contract. Never include it unintentionally.
"Guaranteed bonus / severance"
04
Contingencies and rescissions
Make every contingency explicit and lawful: successful completion of a background check run under the FCRA's process, proof of work authorization via Form I-9, and any license verification. If a contingency fails, rescind in writing, promptly, citing the contingency — and where the reason is a consumer report, follow the FCRA's pre-adverse-action steps first. A rescission handled sloppily creates the same discrimination and reliance exposure as a termination, with none of the file to defend it.
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Frequently asked questions
Is an offer letter a contract?It can become one. A letter that promises a term of employment, specific severance, or termination only for cause can be enforced as a contract — which is why well-drafted letters state pay per pay period, disclaim any employment term, and reserve at-will status.
Should salary be stated as an annual figure?Safer practice is the per-period rate ('$3,461.54 per bi-weekly pay period, which annualizes to approximately $90,000'). Courts in some states have treated bare annual-salary language as evidence of a one-year term.
Can we rescind an offer after the candidate accepted?Usually yes under at-will — but rescission can still draw claims where the candidate relied to their detriment (quit a job, relocated) or where the real reason is discriminatory. Rescind early, in writing, and for documented business reasons.
