That implies a GST/VAT/sales tax rate of ~35% in my country, changing from progressive to regressive tax. Enforcing it would require both the abolition of cash, and to somehow police the barter economy.
https://www.interest.co.nz/news/99949/budget-2019-summary-al...
Edit: 35%. Currently GST is 12.5% and 2019 GST budget was $21 billion, PAYE + other source deductions budget was $35 billion.