An Australian Business Number is required to register a business name, and this number must be used on any tax invoice issued by the business, and is also required to claim certain rebates. For further information about ABNs visit the Register for an Australian Business Number page on the business.gov.au website.

If an entity carrying on a business wishes to use a trading name that is not exactly the same as the owner's or a company name, the name must be registered on the national Business Names Register. The Business Names Register is administered by the Australian Securities and Investment Commission (ASIC) under the Business Names Registration Act 2011 (Cth). For more information, visit the ASIC website. Registration can be done online through ASIC Connect .

However, registration of a business name does not give proprietary rights in the name itself. Whilst no-one else can register the same or similar business name, care should be taken to protect the name as a trade mark, to prevent others from using it as their own trading name. Visit the section on Intellectual property.

The Business Names Register allows a person dealing with the business to search and find who is responsible for the business, and to check if the company is still operating. Detailed information about the business can be obtained either free or for a small fee from ASIC.

The law also protects consumers by requiring that certain services only be provided by qualified people.

Anyone practising and charging a fee as a lawyer, doctor, architect or psychologist must have appropriate tertiary qualifications and satisfy registration procedures.

The Australian Business Licence Information Service can provide information on what licences and particular type of business may require. Consumer and Business Services can also advise on which trades require licences.

The following trades are usually required to be licensed:

As at 20 July 2020, labour hire providers who provide workers to undertake the following types of work will require a specific labour hire license.

Section 46(1) of the Labour Hire Licensing Act 2017 (SA) allows for an exemption to be made by the Commissioner from the requirement to be licensed (under section 11 of the Act) in prescribed circumstances.

An exemption currently applies in the following circumstances:

1. A person who is a body corporate with no more than 2 directors who provides a person to another person to do work, where the person provided by the body corporate is a director of the body corporate who participates in the management of the body corporate, or shares in its profits.

2. A person who is a sole trader or partner in a partnership consisting of no more than two individuals, where the person provided to another person to do work is the owner of the business who participates in its management, and shares in any profits.

An exemption from the operation of section 12 of the Act to 'any person who enters into an arrangement for the provision of labour hire services' with any of the persons listed in paragraphs 1 and 2 above (inclusive) also applies.

The Consumer and Business Services Labour Hire Licensing website provides further information on specific labour hire licensing requirements [link opens in a new window].

South Australian Health Commission approvals are needed for various food business and a liquor licence is needed if liquor is sold.

Sometimes an unqualified or unlicensed person may be promised a fee despite not having a licence or qualification. However, a person commits an offence and payment cannot be recovered (even if a good quality service is provided and the person was promised payment) if that person does not have the necessary qualification, licence or registration.