Final answer:
The National Taxpayer Advocate is an official within the IRS who assists taxpayers in resolving issues and advocates for their rights. They administer a taxpayer-intervention system to help taxpayers navigate the tax system and resolve disputes with the IRS.
Step-by-step explanation:
The National Taxpayer Advocate is an official within the Internal Revenue Service (IRS) who assists taxpayers in resolving issues and advocates for their rights. This position was established to ensure that taxpayers are treated fairly and that their concerns are addressed. The main function of the National Taxpayer Advocate is to administer a taxpayer-intervention system, which includes helping taxpayers navigate the tax system, providing guidance on tax issues, and resolving disputes between taxpayers and the IRS.