Chennai Property Tax Calculator

Greater Chennai Corporation assesses tax on a monthly rental value built from a Basic Street Rate (BSR) for your street. The BSR depends on the street and on your total built-up area, so this page asks you to enter the BSR that GCC's official calculator shows for your street. All the arithmetic after that follows GCC's formula and matches the official calculator.

Property details

Residential BSR (Rs per sq ft per month)

Read it from GCC's official calculator for your street and total area. The 1.31 shown is an example only.

Commercial BSR (Rs per sq ft per month)

Residential permanent area (sq ft)

Residential semi-permanent area (sq ft)

Commercial permanent area (sq ft)

Commercial semi-permanent area (sq ft)

Modelled tax

Monthly rental value: ₹1,310.00
Annual rental value (12 months): ₹15,720.00
Less 10% maintenance on building (90% of value): - ₹1,414.80
Annual value for tax: ₹14,305.20
Half-yearly tax at 12.40%: ₹1,775.00
Half-yearly tax after the 6% hike: ₹1,885.00

Half-yearly tax after 6% hike

₹1,885.00

Per year: ₹3,770.00. Formula checked against GCC's calculator on 9 November 2026.

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What this page does not cover

You must enter the residential and commercial BSR for your street from GCC's calculator. This page does not hold GCC's street rate table or the area-bracket factors.
Only residential and commercial buildings are modelled. Other categories, vacant land, and arrears or penalties are not.
The formula was checked against GCC's calculator on 9 November 2026 for seven combinations of area and use. A later GCC change would not show here.

Official sources

Read on 9 November 2026. A dated read does not prove that no later change exists. Confirm with your municipal body before you pay.

Other cities: property tax calculators by city.

Chennai (GCC) property tax FAQs

What the calculator covers and what it leaves out

How is Chennai property tax calculated?

Monthly rental value = built-up area x BSR (semi-permanent area gets a 20% reduction). Annual rental value = 12 x monthly value. Land is 10% of that and the building 90%, less 10% maintenance on the building. Half-yearly tax is 12.40% of the result, rounded up to the next Rs 5.

What is the 12.40%?

GCC's page splits it as 9% general tax, 2.5% education cess and 0.9% library cess.

What is the 6% hike?

GCC's calculator shows a half-yearly tax after a 6% increase, effective from the second half of 2024-25. This page shows both figures.

Where do I find my BSR?

Open GCC's official calculator, choose your zone, ward and street, and enter your area. It shows the BSR for that street and area.

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