Individual Income Tax Returns: Historical Sources of Income

Long-run annual US individual income tax return totals from IRS Statistics of Income (SOI) Table 1, the historical 'Sources of Income and Tax Items' series reaching back to tax year 1913. Series cover the number of returns filed, total income, income tax before credits, and total tax liability, normalized to absolute return counts and dollars. This is the multi-decade backbone series; the individual_income dataset carries the richer modern detail from 1990 onward.

In SQL, this dataset is the rows of irs_soi.series with dataset_code = 'historical_income'.Copy SQL to list series