The proposals by the group, led by former Italian prime minister Mario Monti, called for the EU to stop depending mainly on the 28 member states for revenue as well as for making it more understandable to average Europeans.
"This type of document is totally unreadable by a European citizen," Jean Arthuis, who chairs the budget committee at the European Parliament, told a press conference in Brussels as he welcomed some of the ideas.
Arthuis added that the multi-annual budget framework "is so narrow that in order to tackle crises" the EU is forced to resort to trust funds, intervention funds and various financial instruments.
The report from the High Level Group on Own Resources, which is made up of former ministers and others, highlights proposals for a budget supported by its own revenue, which account for only a tiny share of the total.
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Since the 1980s, member state contributions have gradually replaced EU resources and now account for 80 per cent of the financing of the European budget.
Among proposals raised were an EU corporate income tax, financial transaction tax and other taxes on financial activities as well as a levy on carbon dioxide output, an electricity tax and motor fuel levy.
The report said Britain's exit from the EU following the shock referendum in June last year presented an opportunity to reform the budget as London will no longer receive a tax rebate for its financial contribution.
The European Parliament last month adopted an EU budget of nearly 158 billion euros for 2017, including a hefty increase to tackle the migration crisis and terrorism.
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