If your bank interest, wages, or other expected data isn't showing up in myTax's prefill, it usually just means the third party hasn't reported it to the ATO (ATO guidelines) yet — you don't need to wait indefinitely, and you're allowed to enter the correct figures yourself. Missing prefill is normal in the first few weeks of July and becomes a real issue only if it's still missing close to your lodgment deadline. This is one of the more common questions AusTax AI's users ask in the first few weeks of tax season.
Why is my prefill data missing or incomplete?
myTax's prefill pulls data automatically from employers, banks, health funds, share registries, and government agencies once they report it to the ATO. Each source has its own timing: employers must finalise income statements by 14 July or 31 July depending on size (see our guide on income statements showing "not tax ready"), while banks and other financial institutions typically report interest income progressively through July and into August. If a source hasn't reported yet, its section in myTax simply stays blank or shows $0 — it doesn't mean the ATO has no record of it at all, just that it isn't visible to you yet.
How long should I wait before entering it manually?
| Data type | Typical availability | If still missing |
|---|---|---|
| Employer income statement | Early-to-mid July | Check status is "tax ready"; contact employer after 31 July |
| Bank interest | Rolling through July–August | Check your own statements and enter manually |
| Private health insurance | By 14 July (insurer deadline) | Download from your fund directly |
| Managed fund / share income | Often into August–September | Enter from your annual tax statement when it arrives |
| Cash or informal income, crypto, overseas income | Never prefilled | Always enter manually — the ATO expects it whether or not it prefills |
The key point: some categories are never going to prefill no matter how long you wait, so "prefill is missing" doesn't always mean "come back later" — sometimes it means "this one's on you."
What if I lodge and the prefill data changes afterwards?
If you lodge using your own manually entered figures and the official prefill data later arrives showing something different, the ATO's data-matching will generally flag the discrepancy and may adjust your assessment or contact you. This is far more common with investment income (dividends, managed fund distributions) that can take longer to finalise than wages. If you're expecting complex investment statements, it's often simpler to wait for them rather than estimate — see our guide on when you can lodge your FY2025-26 return for how this fits the overall timeline.
Where do I check what's actually been reported?
Inside myTax, the prefill report shows each data source, the amount received, and the date the ATO got it — it's worth opening this before you assume something is simply missing, since it will tell you if the ATO has anything at all yet. AusTax AI's own dashboard cross-checks the income sources you've told it about (each employer, each bank account) against what you've entered, flagging anything that looks incomplete before you get to the lodgment step.
Practical checklist
- Open the prefill report inside myTax before assuming data is missing entirely
- For wages, confirm the income statement shows "tax ready", not just "present"
- For bank interest, check your own statements if it hasn't appeared by August
- For anything that never prefills (cash income, crypto, overseas income), enter it yourself regardless of what the prefill shows
- If in doubt on a specific figure, it's safer to wait for the official data than guess
Once your prefill picture looks complete, our step-by-step myTax guide walks through the rest of the return.
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*This is general information only, not personal tax advice. If you're unsure whether a specific figure should be prefilled or entered manually, confirm with the ATO or a Registered Tax Agent before lodging.*