The Accumulated Adjustments Account (AAA) and shareholder basis are two distinct, yet interconnected, concepts in S corporation taxation. The AAA tracks the cumulative undistributed net income of the S corporation that has already been taxed to the shareholders. Shareholder basis, conversely, represents the shareholder’s investment in the S corporation, impacting the deductibility of losses and the taxability of distributions. A common scenario arises where the AAA balance is less than a shareholder’s basis.
This disparity is significant because it affects the taxability of distributions. When an S corporation makes a distribution to its shareholders, it is generally treated as a tax-free return of capital to the extent of the AAA. Distributions exceeding the AAA are then applied against the shareholder’s basis. If the AAA is lower than the shareholder’s basis, distributions exceeding the AAA reduce basis, but are not taxable until basis is exhausted. Understanding this difference is vital for accurate tax planning and compliance.