Farashuddin was speaking to a group of business and economic researchers at a local hotel on Wednesday at the 12th annual general meeting of the International Business Forum of Bangladesh or IBFB.
"The complex system is responsible for lower tax collections. It has to be simplified," he said.
He also explained how to make this difficult task possible.
"It's not that difficult if the government, tax collectors and the public work together," he said.
Bangladesh will have to ensure faster economic growth and take private investment as a ratio of GDP to 40 percent by 2025 from 22 percent now.
"For that to happen, the government has to be aware of its responsibilities. It will have to make investment-friendly rules and regulations, especially for private investors,” Farashuddin said.
He said pledges by five countries, which are Bangladesh's development partners, including India, to provide $40 billion in credit are a sign of their expression of confidence in Bangladesh.
He urged India to take initiatives for effectively using the marine resources.
Indian High Commissioner Harsh Vardhan Shringla, who was present at the programme, said experts from several countries are working to make the best use of the resources of the blue economy.