What does an IRS (Income Tax) officer do, and where are they posted?

IRS (IT) officers run India's direct tax machinery under the Central Board of Direct Taxes (CBDT). Training is a 16-month specialised programme at the National Academy of Direct Taxes (NADT), Nagpur, after Foundation at LBSNAA. Postings are in Income Tax offices across the country and in investigation units; the career ladder rises to Member, CBDT and Chairman, CBDT — Secretary-rank posts. CSE 2026 carries 180 IRS-IT vacancies — among the largest single-service intakes.