> One of the ideas was a system of property tax system in which you pay property tax based on a property value which you get to declare (rather than some assess

> One of the ideas was a system of property tax system in which you pay property tax based on a property value which you get to declare (rather than some assessment by a third-party or government agency). The catch is that you are required to sell to anyone who offers your declared value. A refinement would be that the government agency / tax office also needs to submit an appraisal value, with the catch that they are required to purchase the property for that value if the owner wishes to sell. This balances incentives on all sides to submit realistic values. The final appraisal value would then be the average of the owner and the government appraisal value.