Transitional rules for GST rate change

Key requirements

A transaction spans the change where invoicing, payment or delivery/performance falls on different sides of the date. For a post-change invoice with incomplete 2023 payment but pre-change delivery or services, an election can apply 8% to the higher of pre-change payment or pre-change performance value, with the remainder at 9%. For a 2023 invoice where neither full payment nor full delivery occurred then, 9% applies to the lower of post-change payment or post-change delivery/performance value. Document any election and follow the applicable invoice-adjustment requirements. The January and March 2024 concessions were time-limited, not current filing extensions. OVR non-digital services, low-value goods and reverse-charge purchases have their own detailed rules; do not apply the ordinary invoice test indiscriminately.