REG S Corporations · Updated November 2026

S Corporation AAA vs Accumulated Earnings and Profits

AAA tracks S-corporation tax history; accumulated E&P generally reflects prior C-corporation history.

AAA

The accumulated adjustments account generally tracks undistributed S-corporation income and certain adjustments for tax purposes.

Accumulated E&P

Accumulated earnings and profits can remain from years when the corporation was taxed as a C corporation.

Distribution importance

The presence of accumulated E&P can change the ordering and tax character of S-corporation distributions.

Exam strategy

Ask whether the balance came from S years or prior C years before analyzing the distribution.

The takeaway

AAA is primarily an S-corporation account, while accumulated E&P usually reflects prior C-corporation earnings and can change distribution treatment.

Related Summit resources

FAQ

What is the key distinction?

AAA is primarily an S-corporation account, while accumulated E&P usually reflects prior C-corporation earnings and can change distribution treatment.

What should I identify first?

AAA tracks S-corporation tax history; accumulated E&P generally reflects prior C-corporation history.

Why is this tested?

Understand the difference between the accumulated adjustments account and accumulated earnings and profits in an S corporation.