IRS Whistleblower Office IRSWO IRS-Whistleblower-Büro IRS Whistleblower Office Oficina del Informante del IRS Oficina de Informantes del IRS Bureau des dénonciateurs de l'IRS משרד המסים של המשטרה האמריקנית לקישורים आईआरएस व्हिसलब्लोअर ऑफिस IRS告発者オフィス Escritório de Denunciantes do IRS 美国国税局告密者办公室 IRSWO IRS Whistleblower Office The IRS Whistleblower Office is a branch of the United States Internal Revenue Service that will "process tips received from individuals, who spot tax problems in their workplace, while conducting day-to-day personal business or anywhere else they may be encountered."