The Tax History part of the Property Page is simple: it shows what the property tax was for the property over the past years.

We pull the Tax History data for each property directly from Zillow.

As seen in the image above, the Tax History shows what the property tax was in the past and on a bi-annual basis.

On this table, you can see the year, the property taxes that incurred on the property on that year, as well as the tax assessment.

The tax assessment, in this situation, can mean multiple things, and it may or may not be relevant to your investment depending on the county, city, or state that the property is in.

In its most general description, the tax assessment is the assessed value of the property on which the tax rate will apply.

For example, if the property tax rate is 10%, the property value was $150,000, and the tax assessment was $100,000, the 10% property tax will be calculated based on the tax assessment value of the property.

However, this isn't always the case, and it is advised to do your own research about the tax assessment based on the location of the property and what it will mean in each separate case.

You can learn more about the tax assessment of the property by visiting Zillow's help center or by reading the article written by Investopedia regarding this matter.