Air navigation, airport assistance and space mission services under these codes are treated as specialised support and mission services under GST. They are high skill and input intensive activities delivered mainly to airlines, airport operators, space agencies and corporate users.
After the September 2025 rationalisation, such high value support and mission services are generally taxed at 18 percent with input tax credit because they rely heavily on technology, infrastructure and expert manpower. Only where a specific notification grants a concessional rate or exemption for a mission or project, a different treatment may apply.
The table below explains the current GST rate applicable to SAC code 996764 for typical specialised aviation or space mission services.