This Practice Note provides practical guidance on the plastic packaging tax (PPT). It details the problem of plastic packaging, covers developments in this area that have led to the PPT, commencement of the PPT, definition of plastic packaging component, obligated businesses (manufacturer and importer) and plastic packaging containing recycled content. It also covers exemptions, reliefs and credits, as well as administration and collection of the tax, including records, returns, registration and group arrangements. Finally, it covers offences, penalties and practical tips on advising in this area looking at due diligence and secondary liability.