Abolition of property in land and application of all rents of land to public purposes.

A heavy progressive or graduated income tax.

Abolition of all rights of inheritance.

All of this functionally exists in the context of currency. Rents are traditionally paid in currency. Taxes are collected as currency. Inheritance involves transfer of currency as an asset.

These three reforms drastically reduce the access bourgeois capitalists have to currency as a consequence of implementation. And they would be deflationary as a policy, reducing the cost of goods and services by eliminating the costs associated with the middlemen that gatekeep their transfer.