Hi AJA_Aus,
Thank you for your post.
Until you're on STP Phase 2, you'll need to continue sending TFN declarations to the ATO for new employees. Once you're on STP Phase 2, a new employee's tax details will be sent to the ATO when you declare their first pay run from MYOB, so you won't need to submit a TFN declaration.
This information can be found in the help article below:
If you had any further queries, please feel free to reach out.
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