In the province, there are four state-owned commercial banks; five joint stock commercial banks; the Vietnam Bank for Social Policies and the Vietnam Development Bank under the Government; eight people's credit funds and one microfinance organisation. The network of credit institutions covers all districts and Son La city.

In 2023, the local currency market has been stable, with no complicated developments and no violations in terms of interest rates and fee collection. To date, local credit institutions have mobilized 32.1 trillion VND (1.32 billion USD).