Offer Letter vs Appointment Letter: The Difference

Two Letters, Two Jobs

New hires often receive several documents in quick succession, and the two most easily confused are the offer letter and the appointment letter. They arrive close together, both come from HR, and both mention salary and start date — so it is easy to assume they are the same thing under two names. They are not. Each marks a different stage of the hiring process and carries a different weight.

This guide walks through what each letter does, the order they arrive in, and where they overlap, so you know exactly what you are signing at each step.

What Is an Offer Letter?

An offer letter is the employer's formal proposal of employment. It comes first, usually right after the interviews conclude and a decision is made. Its job is to communicate the headline terms — role, salary, start date, and location — and to invite the candidate to accept. Until the candidate accepts, nothing is settled; the offer can be negotiated or declined.

Think of it as the opening of a contract: an invitation that becomes binding only once the other side agrees. A well-written offer letter template keeps the terms clear enough to avoid later confusion while leaving room for the finer print to follow.

• Timing — issued before joining, often before background checks finish.
• Purpose — to propose employment and secure the candidate's acceptance.
• Detail level — headline terms; conditions such as document verification may still be pending.
• Status — a proposal, sometimes conditional, not the final rulebook.

What Is an Appointment Letter?

An appointment letter is the confirming document. It is issued after the candidate accepts the offer and any pre-conditions are met — typically around the joining date. Where the offer letter proposes, the appointment letter confirms and expands: it sets out the full terms and conditions of employment, including notice period, probation, leave policy, code of conduct, and confidentiality obligations.

This is the letter that reads like the actual contract of employment, because in most organisations it is. Our appointment letter template lays out those detailed clauses in a structure new employees can read and sign with confidence.

Side-by-Side Comparison

Where Does the Joining Letter Fit In?

A third document adds to the confusion: the joining letter. In many companies the joining letter is what the employee submits or receives on their first day to confirm they have actually reported for duty — the administrative full stop at the end of the hiring journey. Some employers merge it into the appointment letter; others keep it separate as a short acknowledgement. If you need a dedicated one, the joining letter template covers the essentials without repeating the whole contract.

The Typical Sequence

1. Interview and selection — the employer decides to hire.
2. Offer letter — the proposal goes out; the candidate accepts or negotiates.
3. Background and document checks — any conditions in the offer are satisfied.
4. Appointment letter — full terms are confirmed, usually near the start date.
5. Joining letter — the employee confirms they have reported for duty.

Which One Is Legally Binding?

Both can create binding obligations, and this is where honesty matters: the label on the letter is less important than its content. An accepted offer letter that contains the essential terms can itself be an enforceable contract, even if the appointment letter never arrives. Equally, an appointment letter usually supersedes the offer where the two overlap, because it is the fuller and later document. Exactly how these interact depends on the wording and on local employment law, so read both carefully and, for anything high-value, have them reviewed.

Practical Advice for Employers and Candidates

• Employers: keep the offer letter concise but make clear which terms are conditional, then let the appointment letter carry the detailed policies.
• Employers: avoid contradictions between the two letters — a salary figure that changes between them invites disputes.
• Candidates: do not resign from your current role on the strength of a verbal promise; wait for the written offer.
• Candidates: read the appointment letter fully, especially the notice and probation clauses, before signing.

The Bottom Line

An offer letter proposes; an appointment letter confirms. One invites you to the job, the other spells out the rules once you are in it. Used together — with a joining letter to close the loop — they give both sides a clean, documented path from "you're hired" to "welcome aboard." Get the sequence right and the paperwork stops being a formality and starts being genuine protection.