How to Read an Offer Letter (Without Missing Anything That Matters)

60-Second Summary

An offer letter is 80% legal contract, 20% sales doc. Read it like a contract.
The four numbers that matter most: base, target variable, equity grant + strike, vesting schedule.
Most disputes come from 4 clauses: at-will language, IP assignment, non-compete, severance terms.
Always check the 'effective date' — it controls vesting cliffs and benefit eligibility, not the start date.

Whether you're writing offers, reviewing them for a candidate, or signing one yourself, an offer letter rewards careful reading and punishes skimming. Here's the structure beneath the marketing.

Anatomy of a modern offer letter

Most US/UK-style offer letters follow the same six-section structure. Knowing it lets you spot what's missing.

The six sections

1
1. Role + start date
Job title, manager, location, classification (employee vs contractor), start date, effective date.
2
2. Compensation
Base, variable target, payment cadence, currency, gross vs net.
3
3. Equity
Grant type (ISO/NSO/RSU), share count, strike, vesting schedule, cliff, acceleration.
4
4. Benefits
Health, leave, retirement, perks, eligibility dates.
5
5. Terms of employment
At-will or notice, probation, confidentiality, IP assignment, non-compete, non-solicit.
6
6. Conditions + signature
Background check, work authorisation, contingencies, expiry date of the offer.

The compensation block, decoded

What the comp block actually means

Term	What it says	What to check
Base	Fixed salary	Annualised number; cadence (monthly/bi-weekly); pre-tax
Variable / bonus	Target % of base	Is it discretionary or formula-based? Capped? Pro-rated in year 1?
Sign-on	One-time payment	Repayment clause if you leave within X months?
Equity refresh	Annual top-up grants	Is it written or just verbal? Tied to performance?
Comp review	When pay is revisited	Calendar date vs hire anniversary?

Equity grants without the jargon

Equity is the section most people sign without understanding. Here's the minimum literacy.

ISO / NSO / RSU — different tax treatment. RSUs are taxed at vest, options at exercise.
Strike price — what you pay per share to exercise. Usually set at the latest 409A valuation.
Vesting schedule — most common is 4 years with a 1-year cliff (25% at month 12, then monthly).
Acceleration — does the grant accelerate on change of control? Single-trigger vs double-trigger.
Post-termination exercise window — 90 days is hostile, 7–10 years is generous.

Ask for the cap table context

An offer of '10,000 options' is meaningless without total shares outstanding and the latest preferred-share price. Ask: 'What % of the fully diluted cap table is this grant?'

Benefits and what's actually included

Benefit eligibility almost never starts on day 1. Look for the effective date of each line — health insurance typically kicks in on the first of the following month, retirement match after 90 days, parental leave after 12 months of service in most jurisdictions.

The legal clauses people skim past

Five clauses worth a careful read

1
At-will / notice
In most US states either party can terminate at any time. In the EU/UK/India there's a statutory notice period — confirm which applies.
2
IP assignment
Anything you build during employment is the company's. Some agreements over-reach into side projects — carve out a 'prior inventions' schedule.
3
Confidentiality
Standard, but check for duration after termination and whether it covers compensation discussion (illegal to restrict in many jurisdictions).
4
Non-compete
Increasingly unenforceable (banned in CA, restricted by FTC, narrow in EU). Push back on overbroad scope / geography / duration.
5
Severance
Often absent. Negotiate a written floor (e.g. 3 months) if joining a risky stage company.

Red flags worth pushing back on

Verbal promises about equity, bonus, or promotion that don't appear in writing
'Discretionary' bonuses with no defined formula or historical payout data
Repayment clauses on sign-on or relocation > 12 months long
IP assignments that claim weekend projects unrelated to the job
Probation periods longer than 6 months without statutory basis

Pre-signature checklist

All four core numbers (base, target variable, share count, vesting) match what was offered verbally
Effective date and start date are both correct
Benefit start dates are explicit, not 'as per policy'
Manager name and reporting line are correct
IP and non-compete scope is something you can live with
You have a PDF copy + counter-signed version on file

References

Holloway — Equity Compensation Guide — Holloway
FTC — Non-compete rule (2024) — FTC
Carta — Understanding your stock options — Carta

Written by Pawan Joshi.Sources cited inline.

First published 16 Jun 2026See site changelog →