AU Sole Trader Receipt → BAS Notes

Turn Australian receipts into ATO-style categories, GST splits, private-use flags and weekly BAS prep notes. Includes gst_split() and bas_due() for 10% GST maths and ATO BAS due dates (Q1 28 Oct, Q2 28 Feb, Q3 28 Apr, Q4 28 Jul, monthly 21st, annual 31 Oct; weekend roll-forward). No invented lodgement figures.

For Australian sole traders using Claude Code / agents. Paste receipt text or CSV lines → coding rows with supplier, date, gross/GST/net, category, private-use flag. Weekly BAS prep checklist only — never fabricates G1/1A/1B.

Australian English, AUD, GST only. General information only — not tax advice. Seller is not a registered tax agent. Verify with your accountant/BAS agent/ATO before lodging.