Erica came to Australia from the United States on a working holiday on 1 December 2019 when she finished college. Her parents were separated, and she had been living between their houses over the last 3 years. All her belongings were packed in a box and stored in her father's basement when she left for Australia. Over the last 7 months Jane has worked in various jobs in Sydney staying with various friends and relatives then she went travelling down the east coast of Australia. At the end of September 2020, she left for New Zealand and intends to go back to the United States in 2022.

Outline the tax residency consequences for Erica. Explain your answer with reference to the relevant legislative provisions, case law and the relevant guidance provided by the ATO.