By: John S. Morlu II, CPA
Distributions from an S corporation can have various tax implications depending on where they are sourced from and how much stock basis the shareholder has. Let’s break this concept down using the case of ABC, an S corporation, and its financial details for a year.

ABC’s Starting Balances
At the beginning of the year, ABC had the following balances in its earnings layers:
- Accumulated Adjustments Account (AAA): $100,000
- Previously Taxed Income (PTI): $0
- Accumulated Earnings & Profits (AE&P): $50,000
- Other Adjustments Account (OAA): $20,000
Yearly Activities
During the year, ABC had these financial activities:
- Non-separately stated income: $30,000
- Capital losses: $10,000
- Tax-exempt income: $10,000
- Distributions to shareholders: $150,000
Adjusting the Earnings Layers
After factoring in the year’s income and losses, ABC’s earnings layers adjusted as follows:
- AAA: Increased to $120,000 ($100,000 + $30,000 income – $10,000 loss).
- PTI: Remained at $0 (no activity here).
- AE&P: Stayed at $50,000 (not impacted by the year’s activities).
- OAA: Increased to $30,000 ($20,000 + $10,000 tax-exempt income).
Distribution Allocation
ABC distributed $150,000 to its shareholders during the year. Here’s how the distributions were applied:
- First $120,000: This amount was deemed to have come from the AAA. Since AAA can only be reduced to zero, this portion was treated as nontaxable (assuming the shareholders had enough stock basis).
- Next $30,000: This portion came from AE&P. Distributions from AE&P are treated as dividends and are taxable to shareholders.
Key Notes on Stock Basis
- Shareholder stock basis was reduced by $120,000 due to the AAA distributions. Stock basis cannot go below zero.
- The $30,000 dividend from AE&P did not reduce the shareholders’ stock basis.
Important Takeaways
- Tax-Free Distributions: Distributions from AAA, PTI, or OAA are nontaxable if the shareholder has enough stock basis to absorb them.
- Taxable Dividends: Any distribution from AE&P is taxable as a dividend and does not reduce stock basis.
- Exceeding Stock Basis: If distributions exceed a shareholder’s stock basis (excluding amounts from AE&P), the excess creates a taxable gain.
Shareholder Basis Calculation
The ending stock basis for S corporation shareholders is calculated using this formula:
Starting Basis
- Income items (including tax-exempt income)
- Distributions
- Losses and nondeductible expenses
Regulations to Know
- IRS Regulation 1.1367-1(f): Governs how to adjust shareholder basis.
- IRC Section 1368(b)(2): States that distributions exceeding stock basis result in a gain.
In ABC’s case, the distribution rules prevented any reduction of stock basis for the $30,000 dividend. This ensures that taxable losses and nondeductible expenses don’t improperly affect the determination of a taxable gain.
Summary
Understanding the layers of earnings in an S corporation and the impact of shareholder stock basis is essential for determining how distributions are taxed. By carefully tracking these layers and adhering to IRS rules, shareholders can avoid unexpected tax consequences and manage their distributions more effectively.
Author: John S. Morlu II, CPA
John Morlu II, CPA, is the CEO and Chief Strategist of JS Morlu, a licensed public accounting and management consulting firm. He has more than 20 years of professional experience in auditing and advisory work, including service as Auditor General of Liberia and FAR and DCAA compliance work at Unisys Federal Systems.
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JS Morlu LLC is a licensed certified public accounting firm founded in 2012 and based in Woodbridge, Virginia, serving clients across the Washington, D.C. Metro Area. The firm is AICPA peer reviewed and provides accounting, tax, consulting, and attest and assurance services. Specialist practices include government contract accounting and DCAA compliance, business valuation, forensic accounting, and audits for homeowners associations, nonprofits and home health care organizations.
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