Preparing for the 2023 GST Increase: Training Slides

Key steps and distinctions

The deck asks businesses to update accounting, invoicing and point-of-sale systems, revise GST-inclusive public prices and review contracts before 1 January 2023. A fixed inclusive contract price that cannot be increased still requires tax accounting using 8/108 after the relevant change. The illustrations separate invoice date, payment date and delivery or performance. With invoice and payment after the change, pre-change delivery can support an election for 7%; if both delivery and payment are after it, that election is unavailable. Where an old invoice covers an unpaid post-change service, cancel the affected 7% amount and issue the corresponding 8% invoice within the stated transitional deadline. For supplies crossing the date with both partial payments and performance, the slides demonstrate the higher pre-change or lower post-change value approaches appropriate to the invoice timing. Supporting evidence is needed; an eligible election does not require a separate approval form, and self-billing requires supplier consent. Later topics cover rebates, returned goods, private use and midnight sales. Treat these slides as historical training alongside the detailed e-Tax Guide, not as current-rate instructions or a substitute for its transaction-specific rules.