As a sole trader, registered for GST, I am struggling to understand invoicing for reimbursement of travel costs. I understand that the travel costs are part of my turnover, but how is GST managed:
Hello @KylieKylie
If your travel is part of the services you invoice for, it's treated the same as any other invoice, but you need to calculate the GST on total travel cost, including any GST that was incurred.
Example
If total travel cost was $550 ($500 + $50 GST), you would invoice your client for $605 ($550 + $55 GST).
This may look like 'double-dipping' with GST, but the on-charging of GST is a taxable supply. Using the example above, you could claim $50, and your client could claim $55 (if they're registered for GST).
Hope that makes sense.
Hello @KylieKylie
If your travel is part of the services you invoice for, it's treated the same as any other invoice, but you need to calculate the GST on total travel cost, including any GST that was incurred.
Example
If total travel cost was $550 ($500 + $50 GST), you would invoice your client for $605 ($550 + $55 GST).
This may look like 'double-dipping' with GST, but the on-charging of GST is a taxable supply. Using the example above, you could claim $50, and your client could claim $55 (if they're registered for GST).
Hope that makes sense.
15 Apr 2026 · 4 min read time
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