Go to Solution.
Yes, you can enable the GST later on, Alison.
To do this, just access your client's company file, go to GST in the left hand section and choose Get started. You can follow the on-screen instructions to finish the setup.
Here are the articles for your reference:
GST Settings Overview
Invoices mistakenly created without VAT or GST
Lodging BAS and IAS
If you need our help, feel fee to go back to this thread.
Wishing you more clients on your business!
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Thanks - the answer is obvious now that I know.
You're welcome, Alison!