Can two individuals have the same TFN?

Each Tax File Number (TFN) is uniquely assigned to an individual or entity to ensure accurate record-keeping by the Australian Taxation Office. This uniqueness is essential for various purposes, including tax reporting, identification, and government benefits. Because the TFN serves as a personal identifier within the taxation system, it is critical that no two individuals or entities share the same number.

The uniqueness of TFNs prevents confusion and errors in tax reporting and ensures that each person's or entity’s financial records are accurately tracked and managed. Since the differences in personal circumstances such as age, changes in name, or even nationality can affect tax records, having a distinct TFN helps in maintaining clear and precise financial identities for each taxpayer.

The other potential choices suggest scenarios that are not compliant with the system of TFNs, which reinforces the importance of the correct answer.