Property Tax History: How to Find It

Each year, a county assessor sets an assessed value for a property and a tax amount based on it. The tax history is that series year over year — useful for spotting reassessments, estimating carrying costs, and comparing tax burden across areas.

The RealEstateDataset Parquet files include a nested tax_history column — an array of {tax_year, tax_amount, assessment} per property. Open the file and expand it:

import pandas as pd
df = pd.read_parquet("realestatedataset-texas-2026-08-01.parquet")
row = df[df.parcel_apn == "1234-567-890"].iloc[0]
for t in row.tax_history:
    print(t["tax_year"], t["tax_amount"], t["assessment"])

The flat CSV carries the current values; the nested per-year history is Parquet-only. See the data dictionary for the exact fields.

Need the tax history for a single property, current? Every dataset record's id is a live endpoint on Straply's API that returns the same nested history.