CONSUMPTION TAX
by the Institute for Entrepreneurship, University of Karlsruhe, Germany,
inspired by Goetz Werner
All current taxes (e. g. income tax and corporate taxes) are paid from money received for products, i. e. ultimately from consumers. It is more transparent to have it as one single and plain consumption tax (i.e. as a value added tax, VAT)

Brief Summary
There are two possible approaches. a) All social welfare is summarized into one basic income for every citizen and/or b) VAT is increased, the proceeds being used to pay a basic income. All other transfer payments and salaries can be reduced by the amount of the basic income. Resulting reduced costs for corporations and public services will lead (if and as competition is intact) to reduced net prices. These are the base for increasing VAT. The gross prices remain stable. The basic income can gradually increase, salaries and all other taxes can gradually decrease so can net prices (and so on).

Implementation
They must agree on the form of taxation, be it a type of Value Added Tax; or on combining social benefits into one basic income payment and lowering salaries by the equivalent amount

Link to full description
Goetz Werner Approach

Link to supplementary information
Goetz Werner page summary German