China's fiscal revenue in September increased by a whopping 33 percent year-on-year, but officials and economists are still cautious about the full year's fiscal balance as the country raises expenditure to boost the economy.

The country's fiscal revenue rose to 560.9 billion yuan ($82.1 billion) last month, while its expenditure increased by 32.9 percent year-on-year to reach 657.7 billion yuan, the Ministry of Finance said on Friday.

September saw the second consecutive monthly revenue hike of more than 30 percent year-on-year.