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Most helpful response

Most helpful reply

KaraATO(Community Support)Community Support
15 Apr 2026

Hi @Vero,


When applying for a TFN, we do extra checks to make sure we don't give someone another TFN if they already have one.


If your double application has already been submitted and it's been less than 28 days, you don't need to do anything. If it's been more than 28 days you can phone our individual enquires line to check on the progress of your application.


While accidentally applying for a TFN twice isn't something to be too concerned over, it's important not to submit any more applications. This is because applying more than once can cause delays to the processing of your original application.

All replies

Most helpful reply

KaraATO(Community Support)Community Support
15 Apr 2026

Hi @Vero,


When applying for a TFN, we do extra checks to make sure we don't give someone another TFN if they already have one.


If your double application has already been submitted and it's been less than 28 days, you don't need to do anything. If it's been more than 28 days you can phone our individual enquires line to check on the progress of your application.


While accidentally applying for a TFN twice isn't something to be too concerned over, it's important not to submit any more applications. This is because applying more than once can cause delays to the processing of your original application.

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What happen if i by mistaken apply my TFN twice ? | ATO Community