Subchapter A—Determination of Tax Liability (§§ 1—59B)
- PART I—TAX ON INDIVIDUALS (§§ 1—5)
- PART II—TAX ON CORPORATIONS (§§ 11—12)
- PART III—CHANGES IN RATES DURING A TAXABLE YEAR (§ 15)
- PART IV—CREDITS AGAINST TAX (§§ 21—54AA)
- [PART V—REPEALED]
- PART VI—ALTERNATIVE MINIMUM TAX (§§ 55—59)
- PART VII—ENVIRONMENTAL TAX (§ 59A)
- [PART VIII—REPEALED] (§ 59B)