01/06/2026
"The ATO won't know" is a bold assumption for someone who just deposited $8,000 cash while declaring $45,000 annual income.
The ATO data-matches your bank accounts, cross-references business expenses against declared income, and compares your lifestyle spending to what you've reported earning.
They're quite good at noticing when the numbers don't add up.
Undeclared income doesn't stay hidden because there's no invoice...