Core tax burden:
Tax revenue as a share of GDP:
GC.TAX.TOTL.GD.ZS.
Automatic year choice:
The calculator uses the latest available tax-data year for the selected country. There is no manual year selector.
Optional inflation overlay:
Inflation, consumer prices (annual %):
FP.CPI.TOTL.ZG. When enabled, the calculator adds the recent 5-year average CPI rate as an implicit burden on purchasing power.
Conversions:
Workdays per year = workdays per week × 52.
Years lost = career length × burden.
Per-year days = workdays per year × burden.
Tax Freedom Day is estimated by counting the required number of workdays from January 1 using the chosen weekly schedule.
Chart types:
Bar and Donut use Chart.js. Waffle, Gauge, Pictograph, and Calendar are drawn directly on HTML Canvas. The Career / Per-year toggle switches between career-length totals (years) and annual totals (workdays). The Calendar view always shows an annual Tax Freedom Day calendar regardless of the period toggle.
Interpretation:
The inflation option is an illustrative overlay, not a forecast. It is added to the tax burden as an implicit monetary burden for the current country regime.
Data fetched through this site's own server — no third-party proxies.