You Have an Employment Contract Even If You Never Signed One

There is a short answer about the terms that govern a job and a useful one, and they are not the same. What follows is the useful one.

Where the contract comes from

An employment relationship is contractual in almost every system, formed when work is offered on terms, accepted and then performed for payment. The absence of a signed document changes what can be proved rather than whether obligations exist between the two sides. Many jurisdictions require an employer to give a written statement of the main terms within a defined period after work begins.

That requirement varies in scope and timing, and the consequences of not complying differ substantially between countries. Where such a statement exists, it is evidence of the terms rather than necessarily being the contract itself.

Terms nobody negotiated

A great deal of what governs a job never appears in the offer letter, arriving instead from legislation that applies regardless of agreement. Minimum standards on pay, working time, holiday and safety are typically imposed rather than negotiated, and they cannot usually be waived. Collective agreements, where they apply, can supply substantial parts of the terms without any individual negotiation taking place.

As a general position, workplace policies and handbooks sometimes form part of the contract and sometimes deliberately do not, depending on how they are drafted. Whether a policy is contractual matters greatly, because contractual policies bind the employer while non-contractual ones can be changed unilaterally.

Implied terms and the relationship itself

Courts in many systems imply terms into employment contracts reflecting what the relationship necessarily requires to function. Obligations of mutual trust and confidence, or comparable concepts, appear in several systems and shape how conduct on both sides is judged. Employees are generally taken to owe duties of fidelity and reasonable care in performing the work they were engaged to do.

Employers are typically taken to owe duties around safety and, in many systems, around treating employees fairly in the exercise of discretion. The precise content of these implied obligations differs between jurisdictions and is developed through case law rather than statute.

Custom and how practice becomes obligation

Where a benefit has been provided consistently over a long period, it can in some systems become a contractual entitlement. The usual questions are whether the practice was clear, well known and applied consistently enough for both sides to have relied on it. Employers who intend a bonus or benefit to remain discretionary usually say so explicitly and repeatedly for exactly this reason.

Removing a long-standing benefit without addressing its contractual status is a familiar source of dispute.

The threshold for a practice becoming binding is genuinely local and is not something to assume from general reading.

Changing the terms

Contract terms generally cannot be changed unilaterally, which is why employers seek agreement to variations rather than simply announcing them. Continuing to work after a change has been imposed can, in some systems, be treated as acceptance of it over time. Objecting in writing while continuing to work under protest is the approach that preserves a position in many systems.

Flexibility clauses purporting to allow wide-ranging unilateral change are read narrowly in a number of jurisdictions. Where a significant change is proposed, taking advice before responding is worthwhile because the response itself can matter.

This is general explanation rather than legal advice, and it cannot take account of your particular facts.

What to keep

Offer letters, written statements, policy versions and any correspondence about changes are the practical record of what was agreed. Payslips establish pay, deductions and often working patterns, and they become important in almost every employment dispute.

For most everyday situations, keeping personal copies outside the employer's systems is sensible, because access is usually lost immediately when employment ends. This is not about anticipating conflict so much as recognising that memory and access both deteriorate quickly. A single folder maintained over the course of a job saves an enormous amount of reconstruction later.

The takeaway

Most of your terms were never negotiated, so knowing where they came from is the first step. General information only; this is not legal advice.

Get it in writing, keep it dated, and file it where you will find it again.