This is an analysis of the income tax note. This analysis uses the XBRL-based 10-Ks of 5,734 public companies. Of that total, 5,383 or 94% were found to provide an income tax note using the US GAAP XBRL taxonomy concept "us-gaap:IncomeTaxDisclosureTextBlock". This is NOT to say that all entities are REQUIRED to provide this note. The analysis is simply to observe and see what can be learned.
This analysis was created to help graduate accounting students to understand how to determine if an XBRL-based financial report has been created correctly.
This ZIP file contains an Excel spreadsheet which has a complete list of the entities and other information related to this analysis.
If the CIK number in the list to the left is YELLOW in color, then the income tax note (level 1 note) was not found for some reason.