Check a supplier's GST registration
Read the ABN Lookup result for a BAS finding, and know when a supplier was matched only by name or could not be checked.
Source reviewed Product documentation
A GST claim on a supplier invoice may need a closer look when the supplier's registration changed during the quarter. BAS Review checks the supplier against the transaction date, then puts a possible problem in the findings queue under R01.
Check the match before deciding
Open the finding and compare its ABN, supplier name, transaction date and GST amount with the invoice. An ABN on the CSV line gives the check a direct match. If the export has no supplier ABN column, the setup page warns that registration checks fall back to contact names. A name-only R01 finding has lower confidence: another business may trade under a similar name. Check the invoice's ABN before accepting a correction.
The review header says whether Supplier GST: Australian Business Register answered, whether some lookups failed, or whether the short built-in list was used because the register was unavailable or not connected. A failed lookup or an unknown registration state is not reported as a proven registration failure. The Coverage tab shows whether R01 ran.
What leaves the browser
For lines that claim GST, the live lookup sends the supplier ABN, or the supplier name when there is no ABN, to BeforeMay's ABN Lookup service. It does not send the CSV, transaction amount or description. The result is used to assemble the review in the browser. Keep the invoice with the BAS file and use it to decide the finding.