CFR > Title 26 > Chapter I CFR > Title 26 > Chapter I – Internal Revenue Service, Department of the Treasury Current as of: 2024 | Check for updates | Other versions Subchapter A Income Tax Subchapter B Estate and Gift Taxes Subchapter C Employment Taxes and Collection of Income Tax At Source Subchapter D Miscellaneous Excise Taxes Subchapter F Procedure and Administration Subchapter G Regulations Under Tax Conventions Subchapter H Internal Revenue Practice Ask a legal question, get an answer ASAP!Click here to chat with a lawyer about your rights. Ask a question, get an answer ASAP!