COMPILED FROM INDIVIDUAL INCOME TAX For sale by the Superintendent of Documents, U. S. Government Printing Office LETTER OF TRANSMITTAL TREASURY DEPARTMENT, OFFICE OF COMMISSIONER OF INTERNAL REVENUE, Washington, D. C., September 7, 1951. SIR: In accordance with the provisions of section 63 of the Internal Revenue Code, requiring the annual preparation and publication of statistics with respect to the operation of the Federal income tax laws, I have the honor to transmit herewith a report, "Statistics of Income for 1945, Part 1," setting forth by various classifications, data relative to the income, deductions, exemptions, credits, tax liability, tax withheld on wages, tax payments, tax refunds, and other pertinent facts reported on the individual income tax returns and on taxable fiduciary income tax returns for 1945, filed during 1946. This report also contains tabulations of data from the gift tax returns for 1945. In addition, there are historical presentations of significant data, published in previous reports, and tables showing synopsis of tax rates, credits, and other provisions of the income tax laws which affect the comparability of historical data. Respectfully, Hon. JOHN W. SNYDER, JOHN B. DUNLAP, Commissioner of Internal Revenue. Secretary of the Treasury. III 1. Simple and cumulative distributions of number of returns, adjusted gross income, and tax liability, with corresponding percentage dis- tributions-by adjusted gross income classes. 2. Income or loss from each of the sources comprising adjusted gross income, adjusted gross income, itemized deductions, surtax exemp- tion, and items of tax-by adjusted gross income classes and by returns with standard deduction or with itemized deductions____ 3. Frequency distributions of returns for each source of income or loss comprising adjusted gross income, for each itemized deduction, for each type of tax payment, and for tax overpayment-by adjusted gross income classes and by returns with standard deduction or with 4. Adjusted gross income, surtax exemption, tax liability before and after tax credits, average tax, and effective tax rate-by adjusted gross income classes and by types of tax- 5. Number of returns, applicable items of income, tax liability, tax with- held, payments on declaration, balance of tax due, refund, and credit on 1946 tax-by adjusted gross income classes, by returns with a tax due at time of filing or with tax overpayment, and by |