Marine support services under SAC 996759 are treated as other supporting services for water transport under GST. They cover bunkering support, escort craft, buoy maintenance and similar marine assistance.
After the September 2025 rationalisation, most supporting transport and infrastructure operation services under these codes generally fall in the 18 percent slab with input tax credit, as they are business to business and input intensive. In limited public infrastructure or government notified cases, concessional or special treatment may apply as per the latest GST notifications.
The table below explains the current GST rate applicable to SAC code 996759 for typical supporting transport and infrastructure services.