Xero change history: ATO services may be unavailable

Xero reported a major ATO outage preventing customers from filing tax returns or STP filings, affecting AU Payroll and Tax Reporting - BAS, TPAR. It started at 2026-09-13 23:46 UTC and was resolved at 2026-09-14 03:51 UTC, lasting 4 h 4 min. The ATO implemented a fix, which Xero monitored before confirming resolution.