DA and HRA rates

Dearness Allowance

DA = Basic Pay × DA%. The Department of Expenditure revises DA twice a year (typically 1 January and 1 July) from the AICPI-IW average. Do not treat any website's hardcoded DA as permanent fact.

Calculator default: 55% (confirm against the latest DoE OM on doe.gov.in).

50% DA rule: when cumulative DA crosses a multiple of 50% (it crossed 50% in January 2024), allowances such as Children Education Allowance and Hostel Subsidy typically rise by 25%. The calculator suggests that update when you edit DA across a threshold — it never silently overwrites your numbers.

House Rent Allowance

HRA = Basic Pay × HRA% (not on DA), subject to city-class floors. After DA crossed 50%, commonly cited rates are:

• X cities: 30% (floor ₹5,400)
• Y cities: 20% (floor ₹3,600)
• Z cities: 10% (floor ₹1,800)

HRA is not payable if government accommodation is allotted. If accommodation is available but not availed, HRA is commonly paid at 50% of the normal rate. Both cases are toggles on the calculator.

Transport Allowance

TA is a fixed monthly amount by Pay Level band and city class — not a percentage of basic. DA is also paid on TA as a separate line (DA on TA = TA × DA%). The calculator pre-fills a band default and lets you edit it.