HRA is one of the most valuable tax exemptions available to salaried employees in India. For someone paying ₹20,000 per month rent in Bengaluru and earning a ₹12 lakh salary, the HRA exemption can reduce taxable income by ₹1.5–2 lakh per year. That translates to ₹30,000–₹45,000 in actual tax saved at the 20–30% bracket.
Despite being common and well-documented, HRA exemption is miscalculated constantly. I have reviewed dozens of salary slips and Form 16 documents and the errors come in predictable patterns: people use gross salary instead of basic salary in the formula, they forget the three-condition rule and apply only one condition, or they assume metro/non-metro incorrectly.
This guide explains the exact formula with worked examples, identifies the five most common mistakes, and tells you what documentation you need to claim it without problems.