U.S. State and Local Tax Rates, 1975 - 2022

We develop a dataset of state (1977–2022)
and local (2000–2022) tax rates from personal income, corporate income, property,
sales, and excise taxes. We utilize sources such as NBER TaxSim, Tax Foundation, CCH CorpSystem, state and local level
tax authority websites (typically the department of revenue or equivalent body), as well as data from
other research. For each state and local tax type, we collect annual data going back in time as far
possible. Local jurisdictions include everything from city and county governments to overlapping
taxing geographies defined by local school boundaries, water and fire districts, or even specially
constructed business tax districts. We aggregate local tax rates to the county level as this represents a stable and well-defined geographic mapping that is non-overlapping and corresponds well to other available measures of governmental oversight and economic activity.