U.S. Department of the Treasury, Internal Revenue Service

Each month, the IRS provides various prescribed rates for federal income tax purposes. These rates, known as Applicable Federal Rates (or AFRs), are regularly published as revenue rulings.

The dataset contains selected income and tax items classified by State, ZIP Code, and size of adjusted gross income. The data are based on individual income tax returns filed with the IRS. The dataset includes following items:Number of Returns, which approximates the number of HouseholdsNumber of Personal Exemptions, which approximates the PopulationAdjusted Gross Income Wages and SalariesDividends Before ExclusionInterest Received 

Filing Season Statistics   

Migration data for the United States are based on year-to-year address changes reported on individual income tax returns filed with the IRS. They present migration patterns by State or by county for the entire United States and are available for inflows—the number of new residents who moved to a State or county and where they migrated from, and outflows—the number of residents leaving a State or county and where they went. The data are available for Filing Years 1991 through 2016 and include: Number of returns filed, which approximates the number of households that migrated Number of personal exemptions claimed, which approximates the number of individuals Total adjusted gross income, starting with Filing Year 1995 Aggregate migration flows at the State level, by the size of adjusted gross income (AGI) and age of the primary taxpayer, starting with Filing Year 2011.   Original data has been modified to include aggregates for county by county migration flows.