From 1 Dec 2019, New Zealand goods and services tax (GST) 15% will apply to each item valued at NZ$ 1000 or less, and AliExpress is required by law to collect such GST and remit to New Zealand Taxation Office.
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According to New Zealand GST rule, if GST is charged to GST-registered buyer, the buyer could apply for a New Zealand GST Invoice with AliExpress. The GST-registered buyer could properly claim for input GST deduction in its GST return with this GST Invoice. AliExpress is therefore not obliged to return GST charged to the GST-registered buyer.
Customer can download invoice from order detail page from Dec.10th and get refund of tax if needed base on the invoice. AliExpress will not process refund of tax to user.