All governments should move to a consumption tax. See FairTax in the US. At least in the US, the founders did not envision being taxed on income. In fact, that power was granted later. The income tax code is way too complex costing trillions of dollars for compliance. Eliminate the tax code, implement a zero percent income tax, zero percent corporate tax, zero percent tax on savings and investments, zero percent payroll taxes and zero percent estate tax. Many people will say corporations should pay tax. Problem is, who pays a corporations taxes? Consumers! Businesses have to pass on the tax costs in the form of increased prices or else they go out of business.
Primary benefit here is consumers keep their whole paycheck encouraging the right incentive of saving and investment.
Yes, the consumption tax rate would have to be high to be revenue neutral. The FairTax estimates it would need to be 23%. However, this should be more than offset by removing all the other taxes from the supply chain, reducing the compliance costs. In addition, there would be increased tax revenue from consumption (tourists, illegals, and criminals). These groups don't pay taxes today.