S Corp AAA Interactive Simulator
Experience the principle of the 'AAA Shield' that protects shareholder tax-free distributions.
1. AAA Calculation Simulator
Enter the corporation's current operating data to see how the ending AAA balance changes. (Sample data is pre-filled.)
AAA Increase Factors (+)
AAA Decrease Factors (-)
Distribution Information
2. Calculation Summary
3. Distribution Tax Treatment Simulation
Shows how the entered distribution () is taxed based on AAA and E&P.
Learn the Core AAA Rules
- Ordinary Business Income
- Net Rental Income
- Interest and Dividend Income
- Capital Gains
- Important: Tax-exempt income does not increase AAA.
Decreases are applied in the following order:
- Ordinary business loss and separately stated loss/deduction items (e.g., capital loss, charitable contributions)
- Nondeductible expenses
- Distributions to shareholders (only to the extent of the AAA balance)
- Important: AAA can be negative due to losses, but not due to distributions.
AAA is a corporate-level account that tracks the cumulative total of previously taxed profits. In contrast, Stock Basis is a shareholder-level account representing the shareholder's investment. The biggest difference is the treatment of 'tax-exempt income.' Tax-exempt income does not increase AAA, but it does increase a shareholder's stock basis. This difference affects the total amount a shareholder can withdraw tax-free.