The Inland Revenue Authority of Singapore has recently published several updated e-Tax guides on Goods and Services Tax (GST). The updated guides include: GST General Guide for Businesses (Fourth Edition) GST: General Guide on Group Registration (Second Edition) GST Guide on Divisional Registration (Second Edition) How Do I Prepare My GST Return (Second Edition) Singapore e-Tax guides are frequently updated to provide clarity on certain issues or reflect changes in tax rules. The specific changes made in each new edition are listed at the end of the guide.