Employment obligations in Australia and what employers must do

Employing staff in Australia means carrying obligations from three separate layers of law at the same time. The first layer is the written employment contract, where you and the employee agree on duties, hours, pay and notice. The second is a set of duties the common law implies into every employment relationship whether or not they are written down, such as the employer's duty to provide a safe system of work. The third is legislation, headed by the Fair Work Act 2009 (Cth), which sets minimum standards that no contract can override.

Each layer carries real consequences. Employees can bring claims in the Fair Work Commission, the Fair Work Ombudsman can investigate underpayment and take enforcement action, and workplace health and safety breaches can draw fines running into the millions. Since 1 January 2025, deliberately underpaying staff has also been a criminal offence. This guide sets out who the obligations apply to, the specific duties in each layer, the penalties for getting them wrong, and a practical checklist to keep your business compliant.

Who the obligations apply to

Most private sector employers are national system employers under the Fair Work Act, and its minimum standards apply to almost every employee they hire. There is no size threshold before the core obligations start: they begin with your first employee. What does vary with size and activity is which additional rules bite, and it pays to know which category your business falls into:

Every employer: the National Employment Standards (the NES), any applicable modern award, work health and safety duties, anti-discrimination laws and the Fair Work Act's unfair dismissal and general protection rules.
Small business employers: a business with fewer than 15 employees is a small business employer for unfair dismissal purposes. Employees must complete a 12-month minimum employment period before they can claim unfair dismissal, compared with six months for other employers, and dismissals that follow the Small Business Fair Dismissal Code are protected from challenge.
Businesses handling personal information: the Privacy Act 1988 (Cth) applies to businesses whose annual turnover is more than $3 million, subject to specific exceptions, and there is a separate exemption for most records about employees in the employment context.
All businesses as duty holders: work health and safety legislation applies to every person conducting a business or undertaking regardless of headcount, industry or turnover, and officers owe personal duties that cannot be delegated away.

Express duties: what the contract should cover

Express duties are the obligations you and the employee agree to in writing. A properly drafted contract is the first line of defence against misunderstandings and disputes, because it sets the baseline for everything that follows. At a minimum it should cover the following:

Role, duties and reporting lines: the position, core responsibilities and who the employee reports to, with a flexibility clause so duties can evolve with the business.
Hours, location and flexibility: ordinary hours, overtime expectations, where work is performed and any hybrid or remote arrangements.
Pay and superannuation: salary or hourly rate, allowances, loadings and bonus eligibility, when pay is due, and superannuation at the legislated rate.
Leave entitlements: at least the minimums in the NES, plus any additional benefits the business offers.
Confidentiality and intellectual property: that confidential information must not be used or disclosed, and that IP created in the course of employment belongs to the business.
Policies incorporated by reference: code of conduct, WHS, IT and social media policies made part of the terms, so policies can be updated without rewriting the contract.
Conflicts, outside work and restraints: rules about competing, moonlighting and conflicts of interest, and post-employment restraints drafted to be reasonable in scope and duration.
Performance management and termination: the process for feedback and improvement, notice periods, and the grounds for summary termination.

The contract must also reflect the correct employment status. Permanent employees, fixed term employees and casuals each need terms that match the nature of the engagement, including the casual loading and the statutory rules around casual conversion.

Implied duties that apply even if never written down

Even with a comprehensive contract, the common law reads a set of implied duties into every employment relationship. You cannot contract out of most of them, and you generally would not want to, because they support a fair and functional workplace.

On the employee side, the key implied duties are:

Obey lawful and reasonable directions: employees must follow instructions that are lawful, reasonable and within the scope of their role.
Exercise due care and skill: employees must perform their duties with reasonable competence, consistent with the requirements of the job.
Fidelity and good faith: employees must not damage the employer's interests, misuse confidential information or compete with the business while employed.
Confidentiality: the duty not to disclose trade secrets and genuinely confidential business information, which survives the end of employment for information that is truly secret.

On the employer side, the key implied duties are:

Provide a safe system of work: take reasonable care for employees' health and safety, including training, supervision and safe equipment. This runs alongside the statutory WHS duties discussed below.
Pay agreed remuneration: pay the agreed wage or salary for work performed.
Provide work in some circumstances: in roles where skills must be maintained, or where the contract implies it, an employer may need to provide work rather than simply pay for it.
Exercise contractual discretion honestly: where the contract gives the employer a discretion, such as a bonus decision, the law generally expects it to be exercised honestly and reasonably.

One common misconception is worth clearing up. In Commonwealth Bank of Australia v Barker [2014] HCA 32, the High Court confirmed that Australian law does not imply a general term of mutual trust and confidence into every employment contract, as courts in other jurisdictions do, a position the NSW Court of Appeal has since applied in State of New South Wales v Shaw [2015] NSWCA 97. That does not leave employees unprotected: disputes still turn on the express terms, the narrower implied duties above, and the statutory protections below, and courts have continued to hold employers to honest and reasonable conduct in exercising contractual powers.

The National Employment Standards

The NES is the statutory floor for every national system employee. Section 61 of the Fair Work Act 2009 (Cth) sets out the entitlements, and they cannot be displaced even by agreement, so a contract that provides less than the NES is overridden to the extent of the inconsistency:

Maximum weekly hours: 38 hours plus reasonable additional hours.
Flexible working arrangements: employees with at least 12 months' service in qualifying circumstances, such as parents and carers, can request changes to hours or location, and the Fair Work Commission can arbitrate disputes that cannot be resolved.
Casual employment: casuals receive a loading in lieu of paid leave, employers must give casuals the Casual Employment Information Statement, and eligible casuals can elect to convert to permanent employment once their pattern of work has become regular and systematic.
Leave entitlements: 4 weeks of paid annual leave (5 for shiftworkers), 10 days of paid personal/carer's leave, compassionate leave, paid family and domestic violence leave, community service leave and long service leave.
Parental leave: up to 12 months of unpaid parental leave for employees with at least 12 months of continuous service, with a right to request an extension.
Public holidays: a paid day off on public holidays, subject to reasonable requests to work.
Superannuation contributions: superannuation is now part of the NES, so the Superannuation Guarantee rate of 12 per cent, in force since 1 July 2025, is a minimum employment standard rather than a purely tax matter. From 1 July 2026 super must be paid on each payday rather than quarterly.
Notice of termination and redundancy pay: notice of up to five weeks depending on length of service and age, and redundancy pay of up to 16 weeks.
Fair Work Information Statement: employers must give every new employee the statement before or as soon as practicable after they start.

Modern awards and enterprise agreements

Many roles are also covered by a modern award, which sets industry or occupation specific minimums such as classification levels, base pay rates, overtime, penalty rates and allowances. Where an award or enterprise agreement applies, you must pay whichever of the award, the agreement and the NES is more beneficial. Award coverage is one of the most common sources of underpayment claims, usually because a business has misclassified a role or assumed an award does not apply to it. If you are unsure whether an award covers a role, check the Fair Work Commission's award coverage tools or take advice before setting the rate of pay.

Work health and safety

Every person conducting a business or undertaking must ensure, so far as is reasonably practicable, the health and safety of workers and others affected by the work. That means identifying hazards, implementing controls, providing training and supervision, and reviewing controls as circumstances change. Regulators now expect the same discipline applied to psychosocial risks such as excessive workload, bullying and harmful workplace behaviour as to physical risks. Officers, including directors, owe a personal duty of due diligence, and can be prosecuted in their own right for failing to meet it.

The penalties reflect how seriously the law treats safety failures. Under the Work Health and Safety Act 2011 (NSW), which mirrors the model law adopted in most states, the most serious category of offence, reckless or grossly negligent conduct exposing a worker to the risk of death or serious injury, carries a maximum penalty of 90,424 penalty units for a body corporate, more than $9 million, and up to 10 years' imprisonment for individuals. Even the second category of failure to comply carries a maximum penalty of 18,128 penalty units for a body corporate, close to $2 million, with smaller but still substantial fines for individuals.

Fair treatment, dismissal and workplace rights

Federal and state laws prohibit discrimination in employment on grounds such as sex, race, disability and age, and prohibit sexual harassment. Employers must take reasonable steps to prevent unlawful conduct, and policies and training are the evidence that those steps were taken. The Fair Work Act adds a layer of workplace rights protections:

Unfair dismissal: employees with the minimum employment period (six months, or 12 for small business employers) can challenge a dismissal as harsh, unjust or unreasonable. Remedies include reinstatement and compensation capped at 26 weeks' pay, so the process matters as much as the outcome.
General protections: the Fair Work Act prohibits adverse action because of a workplace right, such as making a complaint or inquiry about pay or conditions. This catches conduct that would not otherwise be an unfair dismissal, and compensation is not capped the way it is for unfair dismissal.
Redundancy: genuine redundancy requires the role to no longer exist, and the process must follow consultation requirements in the award or agreement and the Fair Work Act.

Privacy and data handling

If the Privacy Act applies to your business, the Australian Privacy Principles govern how you collect, use, store and disclose personal information, including customer and client data. Staff who handle that information need to know what they can access and what they can do with it, and the business needs a privacy policy that matches its actual practices. Note that the Privacy Act exempts most employee records from the Australian Privacy Principles, so the sharper exposure for most SMEs is customer data. The Office of the Australian Information Commissioner can investigate complaints and seek civil penalties for serious or repeated interferences with privacy.

The consequences of getting it wrong

The cost of non-compliance is where the layers come together, and the figures are significant:

Civil penalties: most contraventions of the NES, awards and enterprise agreements are civil remedy provisions. Courts can order penalties of up to 60 penalty units per contravention for an individual and 300 for a body corporate, and up to 600 and 3,000 penalty units for serious contraventions. At the current penalty unit value of $330, that is up to $19,800 and $99,000 per contravention, rising to $198,000 and $990,000 for serious contraventions.
Criminal underpayment: since 1 January 2025, an employer who intentionally fails to pay amounts required under the Fair Work Act or a fair work instrument commits an offence under s 327A. It is punishable by up to 10 years' imprisonment and a fine of up to 5,000 penalty units ($1.65 million) for an individual, or 25,000 penalty units ($8.25 million) for a body corporate, or three times the underpayment amount where that is greater. The Fair Work Ombudsman investigates and refers matters for criminal prosecution.
WHS penalties: as set out above, up to 90,424 penalty units for a body corporate in the most serious category under the NSW Act, with individuals facing imprisonment.
Orders and compensation: courts and the Fair Work Commission can also order back-pay, compensation and reinstatement, and an employer that loses a general protections claim faces uncapped compensation.

A compliance checklist for your business

Run through the items below whenever you hire a new employee, change a role or review your compliance position:

Confirm which modern award, if any, covers each role and that pay rates, classifications and allowances are correct.
Check every employment contract against the NES and any applicable award, and fix terms that fall below the minimums.
Give new employees the Fair Work Information Statement and casuals the Casual Employment Information Statement.
Pay superannuation at 12 per cent and prepare for payday super from 1 July 2026.
Put WHS policies, training and incident procedures in place, and treat psychosocial risks with the same rigour as physical ones.
Keep accurate time and wages records: they are a legal requirement and your best evidence if a claim is made.
Document performance management conversations, and follow a fair process with proper notice before any dismissal.
Review your privacy policy and make sure staff understand how to handle customer data.

When you should get legal help

The obligations above are broad enough that most businesses will need professional input at some point. A lawyer is usually worth engaging for award coverage and classification advice before a role is created, for drafting contracts and restraint clauses, and for any dismissal, redundancy or investigation that could end in the Fair Work Commission. If the Fair Work Ombudsman comes knocking, or there has been a serious workplace incident, advice before you respond can make the difference between a contained issue and a prosecution. A practitioner will review your documents against the current law, assess exposure, and handle the proceedings so you can keep running the business.

The compliance gap underneath your employment contracts

If there is one part of this framework that catches employers by surprise, it is that the implied and statutory layers operate independently of the contract. A well-drafted contract does not protect you if pay rates fall below the award, if a dismissal skips procedural fairness, or if an underpayment is deliberate, and since January 2025 that last scenario is a criminal matter rather than a civil one. The practical test for your business is simple: pull the contracts and pay records for a sample role and check them against the NES and the applicable award. Do it now, before a claim, an audit or an incident finds the gap for you.