Professional Services cover a variety of specialised assignments that do not fit neatly into one narrow category but still involve professional expertise. These services may include advisory, coordination, representation or other technical support based on client needs.
SAC 998399 is used when the main work relates to other professional, technical, and business support services not classified It is intended for professional assignments where the service provider brings specific skills, tools and experience to deliver well defined outputs.
In practical terms, projects under this SAC often touch areas like business consulting services. Using SAC 998399 in these situations keeps the service description and GST classification close to the actual scope of work.