The term TAXING ORG. is a reference to two organizations that are responsible for collecting taxes. The first organization is THEIRS, which stands for Tax and Customs Administration of the European Union. This organization is responsible for collecting taxes from citizens of the European Union. The second organization is the Internal Revenue Service (IRS) in the United States. The IRS is responsible for collecting taxes from citizens of the United States. Both organizations are responsible for ensuring that taxes are collected in a timely manner.