TCP, Tax Compliance and Planning

Sources for C Corporation Compliance: Consolidated Returns, CAMT, and the Penalty Taxes

Last reviewed 2026-10-08

The standards and authorities behind PocketCPA's TCP lessons on C Corporation Compliance: Consolidated Returns, CAMT, and the Penalty Taxes. The topic rests on IRC Sec. 11 / 53 / 55 / 56A / 59 / 162 / 170 / 172 / 243 / 246 / 301 / 316 / 331 / 336 / 351 / 358 / 362 / 368 / 531 / 532 / 533 / 535 / 537 / 541 / 542 / 543 / 545 / 561 / 562 / 563 / 1202 / 1501 / 1502 / 1504 / 6655.

About this topic

A C corporation pays tax on its own profit, and its owners pay again when that profit reaches them. That double layer is subchapter C: the corporation is taxed once at the entity level, and again when earnings reach the shareholder.

Sec. 11(b) sets the entity-level rate at a flat 21 percent of taxable income. Every computation here runs through that number.

Key points

A consolidated return combines the income, deductions, and credits of an affiliated group of corporations.
Intercompany gains are deferred until the asset leaves the consolidated group.
The corporate alternative minimum tax (CAMT) applies a 15% minimum tax on adjusted financial statement income for large corporations.
The accumulated earnings tax and personal holding company tax penalize corporations that retain earnings beyond reasonable business needs.

What the lessons cover

Consolidated returns
The corporate alternative minimum tax
The two penalty taxes
The personal holding company tax
Estimated taxes
Corporate formation and the control test (IRC Sec. 351)
Earnings and profits and the ordering of a distribution (IRC Sec. 301)
The dividends-received deduction (IRC Sec. 243)
Corporate charitable contributions: a band, not a ceiling (IRC Sec. 170)
The million-dollar compensation cap (IRC Sec. 162)
Net operating losses (IRC Sec. 172)
Complete liquidation (IRC Sec. 331)
Qualified small business stock (IRC Sec. 1202)

Authoritative references

Consolidated returns:

Sec. 1501 and Sec. 1502, the privilege to file a consolidated return and the regulations that govern it.
Sec. 1504(a) and (b), the affiliated group: the 80 percent vote and value test at (a)(2), and the includible corporations excluded at (b).
Sec. 1561, the limitation on the controlled-group benefits.

Corporate alternative minimum tax and the base erosion tax:

Sec. 55(a), (b)(2) and (d), the corporate alternative minimum tax imposed in addition to other tax, with Sec. 53(a) and (e) allowing the credit for prior-year minimum tax.
Sec. 56A, adjusted financial statement income, the base of the corporate alternative minimum tax.
Sec. 59(k), the applicable corporation, with the average annual adjusted financial statement income tests at (k)(1)(A) and (k)(1)(B).
Sec. 59A, the base erosion and anti-abuse tax.
Sec. 11(b), the corporate rate, with Sec. 26(b) and Sec. 27(a) defining the regular tax and the foreign tax credit.

The penalty taxes:

Sec. 531 through Sec. 537, the accumulated earnings tax: the tax at Sec. 531, the corporations subject to it at Sec. 532(a), (b) and (c), the evidence of a purpose to avoid income tax at Sec. 533(a) and (b), the accumulated taxable income at Sec. 535(a) through (c), and the reasonable needs of the business at Sec. 537(a) and (b).
Sec. 541 through Sec. 547, the personal holding company tax: the tax at Sec. 541, the definition at Sec. 542(a)(1) and (a)(2) and the exclusions at Sec. 542(c), personal holding company income at Sec. 543(a) and (b), and undistributed personal holding company income at Sec. 545(a) and (b).
Sec. 561 through Sec. 565, the dividends paid deduction: its definition at Sec. 561(a), the rules at Sec. 562(a) and (c), the consent and deficiency dividends at Sec. 563 and Sec. 565, and the carryover at Sec. 564.

Estimated taxes:

Sec. 6655(a) and (b), the addition to tax for underpayment of estimated tax by a corporation, and the installments at (c).
Sec. 6655(d), the amount of the required installments: 100 percent of the current-year tax, or the prior-year tax; (e) the annualized income installments; (f) the amount of the underpayment; (g) the large corporation rule; (i) the short taxable year.
Sec. 6621(a)(2), the underpayment rate.

Formation, distributions, and liquidation:

Sec. 351(a), (b) and (d), the transfer to a controlled corporation: the control test, the boot rule, and the services and other exclusions.
Sec. 358(a), the shareholder's basis in the stock received, and Sec. 362(a) and (e), the corporation's basis in the property received and the limitation on the transfer of built-in losses.
Sec. 368(c), the definition of control.
Sec. 301(a), (c) and (d), the treatment of a distribution as a dividend, a return of basis, and gain, and the basis of the property distributed; Sec. 316(a) and (b), the definition of a dividend from earnings and profits.
Sec. 243(a) and (c), the dividends-received deduction at 50, 65, and 100 percent; Sec. 246(b) and (c), the taxable income limitation and the holding period rules; Sec. 1059, the reduction of basis for extraordinary dividends.
Sec. 170(a)(2) and (b)(2), the corporate charitable deduction on the accrual method and the 10 percent limitation, with the carryover at Sec. 170(d)(2).
Sec. 162(m), the $1,000,000 limit on the deduction for compensation of covered employees, including its definitions at (m)(3) and (m)(4).
Sec. 172(a), (b), (c) and (d), the net operating loss deduction, the carryover rules, the 80 percent limitation, and the modifications.
Sec. 331, Sec. 332 and Sec. 334, gain or loss on a complete liquidation, the tax-free liquidation of a subsidiary, and the basis of property received; Sec. 336 and Sec. 337, gain or loss recognized by the liquidating corporation.

Qualified small business stock:

Sec. 1202(a), (b), (c) and (d), the exclusion of gain, the per-issuer limitation, the active business requirement, and the gross assets limit, with the percentage exclusions and holding period at (a)(1) through (a)(6).
Sec. 1202(e)(1)(A), the active business test.

How PocketCPA uses these sources

Every lesson is written in original words and cites the paragraph each rule comes from. No standard's text is reproduced. How lessons and questions are written and checked is set out in our methodology.