GST treatment on per diem invoicing

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Jeff Parker
Jeff Parker Member Posts: 14 ✭

Hi, my company is providing the consulting services of an employee to another company (A). The project involves travel and we have an agreement of a $400 per diem to cover non-flight costs, which are invoiced separately.

Should my company add GST to this amount in our invoicing to A?

What is the best way to set per diems up for invoicing and for payment to the employee?