What this measures
United States view — each state's tax burden: all state and local taxes collected, divided by the state's GDP. The
Show toggle splits this into state-government taxes, local-government taxes, or the two combined (the default).
World view — each country's tax revenue as a share of its GDP.
United States — data & method
Tax collections: U.S. Census Bureau,
Annual Survey of State and Local Government Finances — “State and Local Government Finances by Level of Government” (table GS00LF01), fiscal year 2023. For every state this reports the dollars collected for each tax type at the state level, the local level, and the two combined.
State GDP: U.S. Bureau of Economic Analysis,
GDP by State — current-dollar GDP (table SAGDP1), 2023.
Burden = total state + local taxes ÷ current-dollar state GDP. In the per-state breakdown, each tax category shows its dollar amount (state / local / combined), its share of the state's total taxes, and its share of state GDP.
Note: this is a tax-to-
GDP ratio, not tax-to-income. Because the denominator is GDP, a place with very large GDP relative to its tax take — most notably the District of Columbia — shows a low burden.
World — data & method
Tax revenue: World Bank,
World Development Indicators — Tax revenue (% of GDP), indicator GC.TAX.TOTL.GD.ZS. Each country uses its most recent available year; the detail panel shows that country's recent-year trend.
Important: the World Bank series measures
central-government tax revenue and excludes social-security contributions and, in most countries, state and local taxes. It is therefore lower than — and not directly comparable to — the U.S. state + local figure above, or to “total tax burden” measures that include all levels of government and social contributions. It is, however, consistent from one country to the next.
Symbols & coverage
“
—” means a tax that is not levied, or is zero. “
N/A” means no data (for example, U.S. territories, or countries absent from the World Bank series). Regional aggregates and non-country entities are excluded.
Sources
U.S. Census Bureau, Annual Survey of State and Local Government Finances (GS00LF01):
census.gov/programs-surveys/gov-finances.
U.S. Bureau of Economic Analysis, GDP by State (SAGDP1):
bea.gov/data/gdp/gdp-state.
World Bank, Tax revenue (% of GDP), GC.TAX.TOTL.GD.ZS:
data.worldbank.org.
Map boundaries: U.S. state outlines via us-atlas (U.S. Census Bureau cartographic boundary files); country outlines via world-atlas (Natural Earth, public domain).
github.com/topojson.
All figures are stored locally — no live API calls at runtime.