Calculate your purchases and expenses
The table below explains how to calculate your purchases and expenses depending on the accounting basis you use.
| Step | Action | Find out more |
|---|---|---|
| 1 |
If you use the invoice basis Add up the amount of all the purchases and expenses that include GST in the taxable period. Write this figure in Box 11 on your GST return. NoteYou must hold the necessary tax invoices or GST records. If you use the payments or hybrid basis Add up all the payments you made for purchases and expenses that include GST during the taxable period for which you hold the necessary tax invoices and GST records. Write this figure in Box 11 on your GST return. |
|
| 2 |
Divide the amount by nine. Write this figure in Box 12 on your GST return. |
|
| 3 |
Enter the sum of any credit adjustments on purchases and expenses from Box 13 on your GST adjustments calculation sheet (IR372) in Box 13 on your GST return. |
Calculate adjustments on private assets used in business Calculate other credit adjustments on purchases and expenses |
| 4 |
Add Box 12 and Box 13. This figure will give you your total GST credit for purchases and expenses. Write it in Box 14 on your GST return. |
Late claim of GST
If you can't claim GST now (eg because you have no tax invoice), you can claim it in a future taxable period.
Note
You can only claim your GST late on expenditure incurred in the previous two years. Exceptions to this two-year rule include:
- inability to obtain tax invoice
- disputed payments for expenditure
- mistakenly treating a supply as non-taxable, or
- clear mistakes or simple oversights.
Find out more
Next steps
Date published: 17 Apr 2007
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