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  US Tax Documents
Decision Analytics and Visualizations


 Browse the data analytics collection in a separate window.

LTR AnalyticsTC Order AnalyticsUSTC AnalyticsUSCA Analytics

Search the collections by clicking on the appropriate category button.

Search IRS LTRsSearch US Tax Cases

This application provides key word access to a variety of US tax-related documents. This site differs from other legal research sites in that the index is tied to the released paper document. You will see anything that appears on the original released paper document including handwritten signatures, notes, notations, smudges and other items that are not captured in text-based legal research databases. Seach results are displayed in the document with each search term having a different highlight color.

Below are two sample analytics studies of US Court cases and IRS Written Determinations. More analysis is available by clicking on the Analytics buttons, above.

Check out the other examples of the visualization of IRS material here and here.

IRS Letter Ruling Analytics

Opinion Analytics

US Tax Court Order Analytics

Here is a sample of a network graph showing Tax Court judges and their relationships to orders they have issued. The size of the nodes for judges (blue) and order types (yellow) indicate the relative frequency of use.

IRS Letter Ruling Analytics

August 2018 - Version 3.2
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