S Corporation Accumulated Adjustments Account (AAA): CPA REG Guide

The Accumulated Adjustments Account (AAA)

The Accumulated Adjustments Account is a corporate-level account that tracks the cumulative amount of undistributed income that has already been taxed to S corporation shareholders. The AAA is critical for S corporations that were formerly C corporations because it determines whether distributions are tax-free returns of previously taxed income or taxable dividends from accumulated earnings and profits (AE&P) carried over from the C corporation years.

Computing the AAA

Annual Adjustments

The AAA is adjusted in a manner similar to a shareholder's stock basis, with some important differences. The AAA is increased by the S corporation's separately and nonseparately stated income items (excluding tax-exempt income). It is decreased by distributions, nondeductible expenses (excluding expenses related to tax-exempt income), and losses and deductions.

Unlike shareholder basis, the AAA can go negative due to losses and deductions, but it cannot go below zero due to distributions. This means that current-year losses can reduce AAA below zero, but distributions in excess of AAA are not charged against the negative balance. Also unlike shareholder basis, the AAA is not increased by tax-exempt income and is not decreased by expenses related to tax-exempt income. These items are tracked in a separate account called the Other Adjustments Account (OAA).

Ordering of Adjustments

The adjustments to the AAA are made in the following order: first, increase for income items; second, decrease for nondeductible expenses and losses/deductions (applied simultaneously); third, decrease for distributions. This ordering matters because income items increase the AAA before distributions reduce it, ensuring that current-year income is available for tax-free distribution.

Distribution Ordering Rules

S Corporations with AE&P

When an S corporation has accumulated earnings and profits from C corporation years, distributions are treated in the following order:

1. AAA: Distributions are first treated as coming from the AAA. These distributions are tax-free to the extent of the shareholder's stock basis (reducing basis), and any excess is treated as capital gain.
2. AE&P: After the AAA is exhausted, distributions come from accumulated earnings and profits and are taxable as dividends.
3. Remaining basis: After AE&P is exhausted, distributions reduce the shareholder's remaining stock basis tax-free.
4. Capital gain: Distributions in excess of stock basis are treated as capital gain.

S Corporations without AE&P

For S corporations that have never been C corporations (or have distributed all accumulated E&P), the AAA tracking is less critical. Distributions simply reduce the shareholder's stock basis, and any excess is capital gain. The AAA still exists as a tracking mechanism but does not create the dividend tier.

Election to Distribute AE&P First

An S corporation can elect, with the consent of all affected shareholders, to treat distributions as coming from accumulated E&P first, before the AAA. This "bypass" election may be beneficial when shareholders want to eliminate the AE&P balance, perhaps to avoid the potential sting tax under Section 1375 (excess passive investment income).

The Section 1375 Sting Tax

If an S corporation has accumulated E&P from C corporation years and passive investment income exceeding 25% of gross receipts, it faces a corporate-level tax under Section 1375 on the excess net passive income. Furthermore, if this condition persists for three consecutive years, the S election is automatically terminated. Distributing the accumulated E&P eliminates exposure to both the sting tax and the potential termination.

Practical Example

An S corporation converted from C status with $50,000 of AE&P. At the beginning of the year, the AAA balance is $30,000. During the year, the S corporation has $40,000 of ordinary income and makes a $60,000 distribution to its sole shareholder. The AAA is first increased to $70,000 ($30,000 + $40,000) and then reduced by the distribution of $60,000 to $10,000. The entire $60,000 distribution comes from the AAA and is tax-free to the extent of the shareholder's stock basis. The $50,000 of AE&P remains intact.

CPA Exam Strategies

• The AAA is relevant only when the S corporation has accumulated E&P from C corporation years.
• AAA can go negative from losses but not from distributions.
• Tax-exempt income and related expenses are tracked in OAA, not AAA.
• Distributions come first from AAA (tax-free), then AE&P (dividend), then basis, then capital gain.
• The bypass election treats distributions as coming from AE&P first.
• Watch for the Section 1375 sting tax when passive income exceeds 25% of gross receipts and AE&P exists.