If you export to or operate in the United States, you'll encounter the TTB — and a different unit of measure.
Proof gallons vs LAL
- Australia measures alcohol in litres of pure alcohol (LAL)
- The US measures in proof gallons (PG)
- Roughly: 1 LAL ≈ 0.264 proof gallons
What this means
Your US-facing reporting needs to express volumes in proof gallons, while your Australian excise stays in LAL. Doing both by hand invites errors.
How software helps
CaskPilot keeps your core records in LAL for the ATO and can produce proof-gallon figures for US TTB reporting from the same data — no parallel spreadsheets. See the excise calculation guide.
This article is general information, not tax or legal advice. Confirm your obligations with the ATO or a qualified adviser.
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