One claim and one journal per financial year.
The imported trial balance may already include a home-office claim for this year. Check before you post so the claim is not counted twice.
Choose how to work out the business-use percentage. You can change this later.
The lock date is on or after this journal's date, so the claim can't be recalculated. Remove the lock date in Settings to make changes.
| Category | Home office | GST | Net |
|---|---|---|---|
| Mortgage interest | 5,300.44 | No GST | 5,300.44 |
| Council rates | 951.20 | 124.07 | 827.13 |
| Power | 842.10 | 109.84 | 732.26 |
| Total | 7,093.74 | 233.91 | 6,859.83 |
Changing the method re-applies the new rate to every row that isn't overridden.
| Category | Account | Annual amount | Use % | Home office | GST | Net |
|---|---|---|---|---|---|---|
| Total | ||||||
This voids the FY2026 home-office journal and deletes the work paper. The GST already claimed will reverse in the next open return. This can't be undone.
The Jan–Mar 2026 GST return that covers this journal is finalised. Re-posting can't change a filed return, so the GST difference will appear as a late claim in your next open return. The income-tax figures update straight away.
PRD-85. The primary variant: a registered sole trader, so GST is apportioned and claimed at the business-use %. Built from DESIGN.md (Concept C — year rail + workpaper, with Concept A's account column and Dr/Cr journal split).