How this instrument works
House Rent Allowance exemption is not a simple percentage of pay — it is the smallest result from three separate tests run side by side, a structure set out in Section 10(13A) of India's Income Tax Act and Rule 2A of the Income Tax Rules. Payroll teams apply it every month when computing tax withheld from a paycheck, and employees revisit the same arithmetic at filing time to check that figure against rent receipts collected over the year. The exemption is capped, deliberately, at whichever of the three tests is most restrictive for that person's numbers — never at the most generous one.
The three tests measure different things. Actual HRA received is simply the ceiling: nothing more can ever be exempt than the employer actually paid as allowance. Rent paid minus 10% of basic salary ties the break to housing cost that exceeds a baseline share of pay, so a token rent produces a token exemption regardless of how much allowance shows up on the payslip. The metro or non-metro limit — 50% of basic salary in Delhi, Mumbai, Kolkata or Chennai, 40% everywhere else — caps the benefit relative to salary alone, independent of both rent and allowance. Whichever of the three lands lowest for a given month is the one that governs.
Two things the raw formula leaves out are worth naming. The exemption only exists under India's old tax regime; the new regime, now the default filing option for most salaried workers, does not permit this deduction at all, so the number this instrument returns is only relevant to someone who has actively chosen the old regime. And the exemption requires a genuine landlord and a genuine rent outflow — living rent-free in a home owned by the taxpayer or a spouse disqualifies the claim entirely, whatever the HRA line on a payslip says.
- Enter Monthly basic salary, $ — the figure both the rent test and the metro test are computed from.
- Enter Monthly HRA received, $ — the actual allowance paid as part of salary, which sets Test 1's ceiling.
- Enter Monthly rent paid, $ — what genuinely leaves your account each month for the rented home.
- Set Metro city (1=yes, 0=no) to 1 only for Delhi, Mumbai, Kolkata or Chennai; anywhere else, use 0.
- Read HRA exemption (least of the three tests) — the two supporting figures above it, Rent paid minus 10% of basic salary and Metro/non-metro salary limit, show which test actually bound.
Worked example — $50,000 basic salary in a metro city
Set Monthly basic salary, $ to 50,000, Monthly HRA received, $ to 20,000, Monthly rent paid, $ to 18,000, and Metro city (1=yes, 0=no) to 1. The instrument runs all three tests at once. Test 1, the actual allowance, is $20,000. Test 2 shows as Rent paid minus 10% of basic salary: $18,000 minus 10% of $50,000 ($5,000) leaves $13,000. Test 3 shows as Metro/non-metro salary limit: 50% of $50,000, the metro rate, comes to $25,000.
HRA exemption (least of the three tests) takes the smallest of the three results — $13,000 — because the rent test is the tightest constraint here, well under both the actual allowance and the metro ceiling. The remaining $7,000 of the $20,000 received ($20,000 minus the $13,000 exempt) gets no shelter from this provision at all; it is added to taxable salary income exactly like any other pay, alongside whatever else the return already counts.
Questions
Why does the calculator take the smallest of three numbers instead of adding them?
Because Section 10(13A) caps the exemption at whichever test is most restrictive, not whichever is most generous. Actual HRA received sets an upper bound on what could ever be exempt; rent minus 10% of basic ties the break to money genuinely spent above a baseline; the metro or non-metro limit caps it relative to salary regardless of rent. Whichever of the three lands lowest is what the law actually protects from tax.
Which cities count as metro for the 50% rate?
Only four: Delhi, Mumbai, Kolkata and Chennai, exactly as fixed by the Income Tax Rules. Bengaluru, Hyderabad, Pune, Gurugram and every other city — however large or expensive its rents — use the 40% non-metro rate instead. Set Metro city (1=yes, 0=no) to 1 only if the rented home sits in one of those four, or Metro/non-metro salary limit will overstate what the law allows.
Can I claim this exemption while living in a home I own?
No. The exemption exists to offset rent actually paid, so it requires a real landlord and a real rent outflow. Living rent-free in a home owned by you or your spouse disqualifies the claim entirely, regardless of what Monthly HRA received, $ shows on a payslip — that allowance would instead be fully taxable, not partially exempt under this formula.
Does this exemption still apply under the new tax regime?
No. HRA exemption under Section 10(13A) is available only to taxpayers who choose the old tax regime; the new regime, now the default filing option for most salaried workers, does not permit this or most other salary exemptions at all. Use this instrument to see what the old regime would exempt, then weigh that saving against the new regime's lower slab rates before choosing between them.
Do I need proof of rent to claim what this instrument computes?
Yes, once the amounts get material. Employers generally require rent receipts before processing the exemption through payroll, and once annual rent exceeds ₹1,00,000 — roughly $1,200 — the landlord's PAN must be furnished as well. Skipping that paperwork does not change the arithmetic shown here, but it can mean the exemption isn't honored when taxes are actually filed.
Why is my exemption not simply my full HRA received?
Because the actual amount received is only one of three ceilings the law applies, and it is often the least restrictive of the three rather than the binding one. In the worked example on this page, $20,000 in HRA is received but only $13,000 is exempt, because rent minus 10% of basic comes in lower. Whenever rent is modest relative to salary, that middle test — not what the employer actually paid — is what limits the break.
References
- Income Tax Department, Government of India — official portal
- Consumer Financial Protection Bureau — renting a home resources
Read this first: This instrument shows arithmetic, not advice. Real offers add fees, taxes and terms that vary by lender and place — verify the figures against your actual paperwork before deciding anything.