WFH Diary vs Spreadsheet: Which is Better for Tracking Your Work From Home Hours?
Excel and Google Sheets are popular — but is a spreadsheet really the best way to track your WFH hours for the ATO? Let's compare.
The Quick Comparison
| Feature | Excel / Google Sheets | WFH Diary Tool |
|---|---|---|
| Setup time | 30+ minutes to build or find a template | Instant — open and start logging |
| Hour calculation | Manual formulas (prone to error) | Automatic — total hours, WFH hours, breaks |
| PDF export | Manual formatting required | One-click formatted timesheet PDF |
| Financial year grouping | Separate files or tabs needed | Built-in — sheets grouped by FY |
| Leave tracking | Manual notes or extra columns | Built-in event types (sick, annual, public holiday) |
| Data privacy | On your device (or Google's servers) | On your device only — no cloud |
| Audit-readiness | Depends on your discipline | Structured, timestamped, exportable log |
| Multi-device | Via cloud sync (not private) | Single device (by design, for privacy) |
| Cost | Free (Excel not free) | Free |
Why Spreadsheets Fall Short for WFH Tracking
1. Formula Errors Are Invisible
A mistyped cell, a broken formula, a misplaced SUM range — and your totals are wrong. The ATO doesn't accept "my spreadsheet had an error" as an excuse. Dedicated tools calculate everything automatically and don't let you break the logic.
2. No Audit Trail
A spreadsheet proves nothing about when you entered data. You could have filled in the whole year on 30 June. A proper WFH diary logs entries with structure and intent — each event is a distinct record with a visible audit trail.
3. Manual Date Arithmetic
Calculating the difference between start and end times, converting to decimal hours, summing by type (normal vs WFH vs break) — this is trivial for a tool and error-prone for a human. One wrong formula and your deduction is wrong.
4. No Built-in Leave and Public Holiday Support
A spreadsheet doesn't know it's a public holiday. You have to manually look it up, manually enter it, and manually adjust your totals. A WFH diary handles this automatically.
5. Google Sheets = Cloud
Google Sheets stores your data on Google's servers. Your employment patterns, leave history, and daily schedule belong to you — not Google. A local-first tool keeps everything on your device.
Why a WFH Diary Tool is Better
✓ Automatic Hour Calculation
Enter start and end times. The tool calculates total hours, WFH hours, breaks, and summaries by event type — to one decimal place. No formulas involved.
✓ No Manual Errors
No cells to mistype, no SUM ranges to accidentally break. The logic is coded once and it works the same every time.
✓ Always Audit-Ready
Generate a formatted PDF timesheet with one click. Every hour logged, sorted by date. Print it or send it to your accountant.
✓ Privacy — No Cloud
Your data stays in your browser's localStorage. Nothing is sent to any server. Not the ATO, not us, not anyone.
When a Spreadsheet Might Work
If you're diligent, comfortable with formulas, and don't mind formatting your own reports, a spreadsheet can work. It's better than no record at all. But for most people, the friction of manual entry and formula maintenance means records get neglected — and that gap is what the ATO notices.
The Bottom Line
Choose the spreadsheet if you love Excel, have a simple WFH arrangement, and are religious about logging. Choose the WFH diary if you want something that just works — fast logging, automatic maths, PDF export, and privacy built in.
Try Our Free WFH Diary
No signup, no cloud, no account needed. Your data stays on your device — always.
Start Tracking for Free