30Y Mortgage (FRED): 7.32% 15Y Mortgage: 6.68% Fed Funds: 3.88% 10Y Treasury: 4.96% USD/MXN: $18.50 IRS Std. Deduction 2026: $15,000
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About Official Calculators USA

Official Calculators USA is a bilingual (English and Spanish) financial and labor computation portal built to make U.S. federal and 50-state tax brackets, Federal Reserve interest rate series, and occupational wage statistics transparent and step-by-step auditable.

Official Data Sources

  • Internal Revenue Service (IRS): 2026 federal income tax brackets, standard deduction ($15,000 single / $30,000 married), FICA Social Security cap ($176,100), and Schedule SE (1099) rules.
  • Federal Reserve Bank of St. Louis (FRED): Daily synchronization of 30-Year & 15-Year Fixed Mortgage averages (MORTGAGE30US, MORTGAGE15US), Federal Funds Rate (DFF), and 10-Year Treasury yields (DGS10).
  • U.S. Bureau of Labor Statistics (BLS): Occupational Employment and Wage Statistics (OEWS) and Consumer Price Index (CPI-U) historical series.

Editorial Contact: contact@officialcalculators.com