[This is part of the series: The Complete Guide To Economics 101.]
What is defined as horizontal equity?
Horizontal Equity is one of the principles of taxing.
It says that people with similar income, assets, property, etc. should pay similar taxes.
Vertical Equity is another principle of taxing.
Horizontal Equity is sometimes difficult to achieve.
Take property tax for example, one can be very wealthy but pay much less tax, simply by owning a smaller home.