Taxpayer Advocate Service (TAS)
Definition
The Taxpayer Advocate Service is an independent organization within the IRS that helps taxpayers resolve problems with the IRS and recommends systemic changes to prevent future problems.
Why This Matters for Tax Relief
The TAS is often described as the IRS's internal watchdog. It is funded by Congress but operates independently of IRS collection and examination functions. TAS accepts cases when a taxpayer is experiencing or is about to experience significant economic harm, such as a levy threatening the ability to pay rent or purchase food; when the IRS is not resolving a problem within a reasonable timeframe; or when there is a failure in the IRS's internal processes. Each state has at least one Local Taxpayer Advocate office. TAS can issue a Taxpayer Assistance Order (TAO) requiring the IRS to take or stop taking a specific action. While TAS cannot change tax law or override a valid IRS assessment, it can compel a human review of a stuck case and stop enforcement action during the review period. TAS assistance is free and confidential.
2026 Update
TAS's 2026 priority cases include taxpayers affected by IRS processing backlogs that persisted from 2022–2025, and taxpayers with accounts affected by OBBBA transition issues. The National Taxpayer Advocate's annual report to Congress identified systemic delays in OIC processing as a top concern for 2026.
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Related Terms
CDP Hearing (Collection Due Process)
A Collection Due Process hearing is a formal taxpayer right under IRC § 6330 to appeal an IRS lien filing or proposed levy before an independent Appeals Officer, with the option to escalate to U.S. Tax Court if Appeals disagrees.
CAP Hearing (Collection Appeals Program)
A Collection Appeals Program hearing is a faster, less formal IRS appeals process for disputing rejected installment agreements, proposed lien filings, or levies — but unlike a CDP hearing, it does not provide Tax Court access.
Audit Reconsideration
Audit reconsideration is an IRS administrative process that allows a taxpayer to dispute an assessment made from an audit they did not attend, did not agree with, or have new documentation to support.
Notice of Deficiency (90-Day Letter)
A Notice of Deficiency is a formal IRS determination that additional tax is owed, triggering a 90-day window during which the taxpayer may petition the U.S. Tax Court without first paying the disputed amount.