Tax Optimal Path Determining to Reduce Government Budget Dependence on Oil Revenues

Reducing government budget dependency on oil revenues is one of the Iranian twenty- year vision (Iran vision 1404) document goals and also fourth and fifth economic-social development plan targets in Iran. Therefore، to reduce government budget dependency on oil، the best way is to increase tax revenues as the best alternative. In this study، the Bellman equations were used to determine the optimal path for tax revenues in order to reduce the budget dependency. The main objecfives the study were to obtain the optimal tax path for government public expenditure in the final year of Iran vision 1404، and also to finance government current expenditure by tax revenues in the last year of fifth economic-social development plan.