Data Sources & Citations

To maintain absolute precision and trust under YMYL standards, we source parameters directly from national statistical agencies and official revenue guidelines.

1. Inflation Indices (CPI baselines)

Our default inflation rates represent long-term CPI trends sourced from:

  • United States: U.S. Bureau of Labor Statistics (BLS) Consumer Price Index reports.
  • India: Ministry of Statistics and Programme Implementation (MoSPI) Consumer Price Index (Combined) data.
  • United Kingdom: Office for National Statistics (ONS) Consumer Prices Index (CPI).
  • Canada: Statistics Canada Consumer Price Index.
  • Australia: Australian Bureau of Statistics (ABS) CPI figures.
  • Europe: Eurostat Harmonised Index of Consumer Prices (HICP).

2. Tax Schedules & Bracket Rules

Income tax structures are updated annually according to regional revenue guides:

  • United States: Internal Revenue Service (IRS) Tax Year projections.
  • India: Income Tax Department, Ministry of Finance Finance Bill (FY 2025-26 slabs).
  • United Kingdom: HM Revenue & Customs (HMRC) PAYE tax rules.
  • Canada: Canada Revenue Agency (CRA) payroll deductions schedules.
  • Australia: Australian Taxation Office (ATO) resident individual schedules.
  • Europe: Consolidated national averages (OECD Tax Database).