04/09/2026
$1,820. That's the maximum penalty for lodging late in 2026 β and it's higher than it used to be. π
What waiting on your tax return actually costs:
Failure-to-lodge penalty: $364 for every 28 days overdue, capped at $1,820
General interest charge on any tax debt: 11.43% p.a., compounding daily
That interest is no longer tax-deductible β changed from 1 July 2025, so it's a straight cost now
E-lodged returns are typically processed within about 2 weeks, so lodging now means your refund lands sooner too
There's no upside to waiting until October. Only a bigger number.
π Book your tax return this week. Link in bio.
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