A zero-hour contract is an employment contract that stipulates an employer does not have to provide an employee with a minimum or guaranteed number of working hours.

The employee isn’t guaranteed a regular salary and is only paid for the hours they work. Equally, the employee is not obligated to work a set number of hours or accept the work hours offered by the employer. 

Zero-hour contracts are sometimes called casual contracts, and individuals on zero-hour contracts are called workers, whereas talent on traditional contracts or indefinite contracts are called employees.

When are zero-hour contracts used?

Employers that use zero-hour contracts typically experience fluctuations in demand or rely on on-call scheduling. Companies in the hospitality and retail industries commonly use zero-hour contracts to hire seasonal workers or extra staff on short notice. 

For example, an employer might ask a worker to work 30 hours one week but only eight hours the following week. Or, an employer may ask a worker to assist with a special event that requires extra staff for a specific task, such as catering for a wedding. 

Zero-hour contracts accommodate workers seeking flexible work schedules, such as a parent caring for a dependent, an individual with another job, or a student needing to schedule around their school classes.  

Benefits of zero-hour contracts

Zero-hour contracts offer benefits to both employers and workers.

Some advantages of zero-hour contracts for employers include:

  • Flexibility. Employers hire staff according to the needs of their business. Employers can respond quickly and effectively to changes in demand, staff absences, and unforeseen events. 
  • Cost savings. Employers only need to pay workers for the hours they work and can schedule based on the available budget and company needs. 

Some advantages of zero-hour contracts for workers include:

  • Flexibility. Employees work when it suits their schedule and can accept or reject work. 
  • Supplemental income. Employees can use zero-hour contract jobs as a means of supplemental income in addition to other jobs. 
  • Work opportunities. Workers can gain experience in an industry and become familiar with the company’s policies and culture. Zero-hour contracts also allow an individual to learn and grow in the position, which could lead to a permanent, full-time offer.

Disadvantages of zero-hour contracts

Despite the many benefits, zero-hour contracts also present disadvantages to both employers and workers.

Some disadvantages of zero-hour contracts for employers include:

  • Misclassification. Employers risk misclassifying their workforce when hiring workers under several different contracts, such as indefinite contracts, fixed-term contracts, contractor agreements, and zero-hour contracts. Misclassifying zero-hour contract workers can result in fines, legal and tax implications, and even jail time.
  • Payroll complications. Because zero-hour talent work irregular hours, complications may arise when an employer calculates holiday pay and annual leave.
  • Uncertainty. Workers are free to reject the work that employers offer them, which can cause problems for employers, including being short-staffed and needing to hire additional employees to accommodate last-minute demands. 

Some disadvantages of zero-hour contracts for employees include:

  • Unreliable income. Zero-hour contracts do not guarantee hours or pay, and the individual’s work hours might fluctuate significantly from one pay period to the next. The uncertainty is problematic for workers seeking financial security or who have specific budgeting needs.
  • Dismissal risks. Unfair dismissal is difficult to prove when an employer reduces the worker’s hours to zero rather than terminating their employment. 
  • Pressure. Although workers are not obligated to accept the work offered to them, they may feel pressured to take hours out of fear of not being offered hours in the future.

Do zero-hour contracts include sick and holiday pay?

Employees working under a zero-hour contract are entitled to statutory benefits, including sick pay and minimum holiday pay. However, the amount of compensation they receive depends on the average amount of hours they have worked. 

Other employee entitlements under zero-hour contracts

Zero-hour contract workers are also entitled to other primary employment benefits and rights; however, these vary from country to country. A zero-hour contract commonly includes the following entitlements:

Are zero-hour contracts legal in the United States?

Zero-hour contracts are legal in the U.S. However, regulations on zero-hour contracts vary depending on the state, and the agreement between the employer and worker must comply with the local jurisdiction where the work takes place.

Zero-hour contracts are illegal in some countries, including New Zealand and Ireland. 

Zero-hour contracts are primarily used in the U.K. for piece work or on-call work. Zero-hour contracts must provide the national statutory rights afforded to all employees. 

How to manage zero-hour contracts with compliance

Employers should consider if a zero-hour contract is the best type of domestic or international employment contract for their business, depending on the nature and timeframe of the work needed, the worker’s country of residence, and other business goals.

Employers must understand their legal employment obligations and the worker’s statutory rights when offering a zero-hour contract.

An employer must also ensure their staff working under zero-hour contracts know their rights. Contracts should be clear and transparent so workers understand the nature of the contract and work availability. 

Requirements around zero-hour contracts vary globally, and the risks significantly increase when engaging international talent. An employer with a global workforce must understand the country-specific regulations around zero-hour contracts. 

To avoid non-compliance and other risks related to zero-hour contracts, employers should consider working with local in-country experts or an employer of record (EOR) to help them navigate laws surrounding zero-hour contracts and ensure their talent is correctly classified.


Legal Disclaimer: The information available in this guide does not, and is not intended to, constitute legal advice and is for general informational purposes only. You should contact your attorney to obtain legal advice with respect to any particular legal matter. Only your individual attorney can provide assurances that the information contained in this guide—and your interpretation of it—is applicable or appropriate to your particular situation. All liability with respect to actions taken or not taken based on the information in this guide is hereby expressly disclaimed. The content in this guide is provided "as is," and no representations are made that the content is error-free.



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