The economy of Sivasagar is robustly supported by two primary pillars: **Oil & Natural Gas** and **Tea**.
The presence of the Oil and Natural Gas Corporation (ONGC), which has its Assam Asset headquarters in nearby Nazira, provides significant direct and indirect employment, driving local commerce and real estate. Additionally, the countless tea estates surrounding the city are major economic engines, producing some of the world's finest Assam tea.
In recent years, tourism has become an increasingly vital sector. The state government and local entrepreneurs have been investing in hospitality and infrastructure to accommodate heritage tourists drawn to the Ahom monuments. The cost of living in Sivasagar is relatively moderate compared to larger metropolises like Guwahati, though housing costs have risen due to the influx of energy sector professionals.