Can I use my mother's Income Tax Return documents as proof of financial support for my student visa application to Australia or New Zealand, if she is sponsoring me?

Yes. Your mother's ITR documents can be used as part of your financial evidence for an Australian Subclass 500 visa or a New Zealand student visa, but you need to pair them with other documents, not submit ITRs alone.

Financial Documents to Combine With ITRs

Country-Specific Notes

• Australia: Use the Document Checklist Tool in ImmiAccount for your specific passport and education provider, since exact requirements vary by case.
• New Zealand: A parent can act as a third-party guarantor through a Financial Undertaking for a Student, alongside evidence she can afford to support you.
• New Zealand minimum: Tertiary students must show NZD 20,000 per year for living costs, on top of tuition and travel costs.

My Advice

Ask your mother to keep at least 3 months of clean bank statements ready, with no unexplained large deposits, since New Zealand and Australian authorities can ask you to explain the source of recent large sums. Attach a short sponsorship declaration alongside her ITRs and bank statements so the financial story reads as one coherent package rather than separate, disconnected documents.