Australia

A wrong ABN and a smudged one look the same to OCR. We made sure ours doesn't guess.

ACJ Labs
Tax,Engineering
25 Jul, 2026

Every Australian Business Number carries a checksum — a modulus-89 formula baked into the digits themselves, so a wrong ABN is usually mathematically detectable, not just "looks a bit off." Which rais

Build vs. buy: should your bookkeeping tool parse receipts with a raw LLM call?

ACJ Labs
Engineering,Tax
25 Jul, 2026

Here's the honest version of the pitch first: if all you need is vendor, date, and total off a receipt, you should probably build it yourself. A single vision-model call — GPT-4o-mini, Gemini Flash —

The GST rule your receipt scanner doesn't know exists

ACJ Labs
Tax,Engineering
23 Jul, 2026

A restaurant receipt and a client dinner look identical to an OCR tool. Under Australian GST rules, they aren't: entertainment expenses have their input tax credit (ITC) denied by default — GST was ch