Job Offer Letter vs. Employment Contract: Key Differences

What a Job Offer Letter Is (and Isn't)

A job offer letter is a written summary of the basic terms of employment: title, start date, salary, reporting structure, and sometimes benefits. It's usually a short document — 1–3 pages — and often not written by a lawyer.

Offer letters are generally considered binding as to the terms they state. But because they're short, they leave many things undefined — and what's undefined gets filled in by other agreements you'll sign, company policy, or state employment law.

What a Full Employment Contract Adds

A full employment agreement goes significantly further: it includes at-will vs. term provisions, detailed compensation structure (bonus triggers, equity terms, vesting), IP assignment, non-compete and non-solicitation restrictions, dispute resolution (arbitration clauses), termination provisions and severance terms, and confidentiality obligations.

The critical point: many companies include non-compete and IP assignment clauses in the offer letter itself — before you've even started — alongside the compensation details. It's easy to focus on the salary number and miss the non-compete buried two pages later.

What's Missing From Offer Letters (And Why That Matters)

When an offer letter is silent on something, it's not automatically resolved in your favor. Silence on termination terms usually means at-will employment. Silence on bonus structure usually means discretionary. Silence on IP ownership usually gets resolved by a later agreement you'll be asked to sign at onboarding.

The onboarding agreements — typically a package including an IP assignment, arbitration agreement, and sometimes a non-compete — are often presented as routine paperwork on your first day. By then, you've already left your previous job.

Using Revealr to Review an Offer Letter

Revealr reviews offer letters specifically: identifying at-will language, signing bonus clawback provisions, equity terms that need clarification, and non-compete clauses that shouldn't be in an offer letter at all. Upload your offer letter and get a breakdown of what the terms actually mean — before you accept.