The purpose of this study is to analyze; (1) How effective is the current legal policy formulation to increase local revenues?; (2) How to reformulate policies to increase local original income in the future? The research method used is empirical juridical with a statutory approach, concept approach, and case studies. The results showed that; (1) the effectiveness of legal policy formulation to increase local original income currently in Development in Jambi Province can be said to be quite good. This can be seen from the very controlled inflation, GDP that is growing again, the Gini Ratio that is getting closer to the target, and the Farmer Exchange Rate is getting better. Macroeconomic indicators in Jambi Province are quite encouraging. The economy grew 3.66% from last year which shows the recovery is going well although slightly slower than last quarter. The inflation rate is also very well maintained while interest rates are still set low to boost the wheels of the economy so that consumption levels can increase further. The performance of the rupiah this year is very good and even far outperforms other countries in the Southeast Asian region; Well-being indicators have also improved. (2) Policy reformulation to increase local original income in the future, including; a) Increase in Gross Domestic Product, b) Control of Interest Rates, Inflation, Exchange Rate, c) Improvement of Infrastructure, d) Employment Development and Unemployment Reduction, e) Improvement of leading and potential sectors in the regions. The government should be more serious about developing leading and potential sectors in the regions. The leading sectors are the Agriculture, Forestry & Fisheries sector, the Mining & Quarrying Sector and the Education Services Sector. Meanwhile, the Water Procurement, Waste Management, Waste and Recycling Business Sector and Information and Communication Sector are potential sectors to be developed in Jambi Province. By having a map of the potential and leading sectors, of course, it is expected that future fiscal spending will be directed to support infrastructure and related infrastructure facilities that can further encourage the sector to grow. Even if planned well, it is not impossible that this superior sector will become a distinctive sector of Jambi Province so as to further enlarge the role of Jambi Province in the Sumatra region in the future.