The Inland Revenue Authority of Singapore has published an updated version of its e-Tax Guide, GST: Customer Accounting for Prescribed Goods. The guide explains how businesses apply customer accounting for transactions in prescribed goods, including mobile phones, memory cards, and off-the-shelf software. This was implemented from 1 January 2019 to deter fraud schemes involving prescribed goods where the seller absconds with the GST collected, but businesses further down the supply chain con…