IRS walk-in desks answered tax questions wrong 46% of the time. The right answer was on the mandatory screen in front of them.

The finding, in one paragraph: the IRS runs more than 360 walk-in offices for the taxpayers its own website cannot help — identity-theft victims, people who need a human — and when the Treasury Inspector General for Tax Administration sent testers through the front door unannounced, the offices failed in every mode available to them: guidance that was wrong, doors that were guarded, appointment slots that sat empty while the people they could have served were told to go home and call a phone line that answers one call in five.▸ None of this required new money to fix. The correct tax answers were in a mandatory tool on the employees' screens; the open slots were in the scheduling software the greeters were required to check.

Five documents, read directly.▸ The audit is TIGTA's Limited Testing Showed That Taxpayer Assistance Centers Did Not Always Provide Accurate Guidance or Assist Walk-in Taxpayers (report 2026-108-034, June 29, 2026) — 91 unannounced visits to 82 of the IRS's 363 Taxpayer Assistance Centers during the 2025 filing season. Its predecessor, Actions Need to Be Taken to Improve Services Provided at Taxpayer Assistance Centers (2025-108-017, April 2025), ran the same play a year earlier and produced the January 2025 discipline memo this year's testers watched being ignored. Context documents: the National Taxpayer Advocate's 2026 mid-year report (June 24, 2026), which supplies the phone numbers behind the deflections; the IRS's own public instructions for visiting a TAC; and the Taxpayer Bill of Rights (IRC § 7803(a)(3)), the statutory promise of "quality service" quoted in the audit.

The wrong answers were not close calls on exotic law.▸ TIGTA asked three scripted questions an ordinary filer might bring in. The injured-spouse question — my spouse's old tax debt swallowed our joint refund; can I get my share back? — was answered incorrectly at 20 visits. (The correct answer is yes: Form 8379.) Home-sale taxes and the American Opportunity Tax Credit each drew four wrong answers. The IRS built a tool to make these questions unmissable — the Interactive Tax Law Assistant walks the employee through prompts and "generates accurate and complete responses." Its use is mandatory. In January 2025, after the prior year's audit, Field Assistance put in writing that refusing to use it "will be treated as a conduct issue" with possible discipline. Managers counseled employees during the season. The error rate the following spring was 46 percent.

Seventeen of the 19 testers deflected at the front desk were told to make an appointment — seven got the phone number, six were told to call without being given a number, four got nothing.▸ Two were told appointments were booked three to five weeks out. TIGTA then pulled the scheduling data for those visits: appointments were available within an hour of arrival in 17 instances — eleven from same-day cancellations, six open when the tester walked in. The greeters never checked. And the appointment line those taxpayers were sent to is the National Taxpayer Advocate's headline number: the IRS answered 21 percent of the 48.1 million calls it received during the 2026 filing season, with a 14-minute average hold for the calls that got through.

The empty slots are systemic, not anecdotal:

Ninety-six percent of no-show slots were held past the deadline — mostly until end of day, invisible to every walk-in turned away in the meantime.▸ IRS management's explanation, recorded in the audit: employees "may have been occupied assisting another taxpayer," and the lapses "were not intentional." TIGTA's response is the first recommendation: stop relying on humans — auto-close the slot at 15 minutes and ping the staff.

The statute against the transcript.▸ The Taxpayer Bill of Rights, codified in 2015, guarantees "the right to quality service." The IRS's own visitor instructions warn the taxpayer that arriving 15 minutes late may forfeit an appointment — the same 15-minute standard its employees met 4 percent of the time in reverse. And a quieter finding explains part of the demand drop: the 2025 extended evening hours and Saturday events were "not widely publicized due to limitations on external public communications driven by new Department of the Treasury approval clearance requirements beginning in January 2025." The service existed; the government declined to advertise it. Total taxpayers helped fell 7 percent, to about 925,000 — while the one channel that was expanded and publicized in prior years, extended weekday hours, grew 31 percent. Saturdays, converted from walk-in to appointment-primarily for security reasons, served roughly 9,000 fewer people. Demand did not fall; the doors narrowed.

IRS management agreed with all four recommendations.▸ One is already live: since December 2025, the scheduling system prompts employees to use the tax-law tool before closing a tax-law appointment. The auto-close feature for no-shows is promised. Survey cards — which employees failed to offer at 86 percent of required visits, starving the IRS's own quality metrics — went electronic on April 1, 2026. The structural headwinds run the other way: nine TACs closed in November 2025 under an executive order, and TIGTA notes the IRS "recently terminated its employee union agreement," which removes the stated obstacle to staggered shifts — a change TIGTA suggests, and the IRS has not adopted.

All figures are from the documents cited in-line, each read directly. TIGTA's 91-visit sample was judgmental, not random; its rates describe the visits, not all 363 centers. The 21% phone answer rate is the 2026 filing season, per the National Taxpayer Advocate.