# Xero: Major incident: Australia: Xero Tax - customers are experiencing issues with prefilling and lodging tax returns to the ATO

**Summary:** Xero reported a major incident preventing Australian Xero Tax customers from prefilling or lodging tax returns to the ATO. It ran from 2026-08-30 20:21 UTC to 2026-08-30 22:39 UTC, lasting 2 h 18 min. The ATO implemented a fix, and Xero confirmed resolution. _(machine-written, sol)_
- Kind: Major incident · Label: outage (model (Jev))
- Changed: 2026-08-30 20:21 UTC · Detected: 2026-10-17 18:22 UTC
- [Source: https://stspg.io/q8vmpyg7dzgn](https://stspg.io/q8vmpyg7dzgn)
- [Company: Xero](https://rewindex.com/company/xero.md)
- Versions: before (none: first archived) → after incident\_version:223/mg3qbpbw092r@36a6a42f6a83
- Change 1 of 1 for this incident

## What changed

**1. Added: Title**

```diff
+ Australia: Xero Tax - customers are experiencing issues with prefilling and lodging tax returns to the ATO
```

**2. Added: Impact**

```diff
+ major
```

**3. Added: Status**

```diff
+ resolved
```

**4. Added: Start time**

```diff
+ 2026-08-30 20:21 UTC
```

**5. Added: Resolved time**

```diff
+ 2026-08-30 22:39 UTC
```

**6. Added: Affected components**

```diff
+ Xero Partner Products & Tools - Xero Tax (AU), Xero Tax (AU)
```

**7. Added: Update** (identified) · 2026-08-30 20:21 UTC

```diff
+ We are aware of an issue with the ATO where customers are unable to prefill or lodge tax returns from Xero Tax. This is our top priority and we will update you as soon as we can.
```

**8. Added: Update** (monitoring) · 2026-08-30 22:17 UTC

```diff
+ The ATO has implemented a fix and we are currently monitoring the results.
```

**9. Added: Update** (resolved) · 2026-08-30 22:39 UTC

```diff
+ ATO has resolved the issue causing errors for AU customers when using prefill or lodge tax returns from Xero Tax.
```

## History of this incident

| When (UTC) | Change | Label |
| --- | --- | --- |
| 2026-08-30 20:21 UTC | Major incident: Australia: Xero Tax - customers are experiencing issues with prefilling and lodging tax returns to the ATO (this change) | outage |

All Xero changes: [timeline](https://rewindex.com/company/xero/changes.md)
_Diff excerpts are shown on normalized text: dates, counters and tokens appear as ‹date›, ‹count›, ‹tok›; noise-only edits are hidden. Rewindex shows the changed passages, not a copy of the page._


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Canonical: https://rewindex.com/change/i12d2c7ebb3c06b · Markdown: https://rewindex.com/change/i12d2c7ebb3c06b.md · JSON: https://rewindex.com/api/v1/changes/i12d2c7ebb3c06b · Generated 2026-10-18T03:21:53.543Z