Property Tax in Mumbai: How BMC Calculates It, and How to Pay
Property tax in Mumbai is a percentage of your flat's capital value, which BMC works out from the ready reckoner rate, the area and weights for use, building type, age and floor. For residential property, the main components on the 2026 civic diary total about 0.64% of capital value before cesses. Homes of up to 500 sq ft carpet are exempt, and bills are paid online at ptaxportal.mcgm.gov.in.
Key takeaways
- The formula in BMC's capital value rules is CV = base value × user category × nature of building × age factor × floor factor × area. The base value comes from the ready reckoner.
- Residential rates listed for 2025-26 are 0.11% general tax, 0.253% water tax, 0.069% water benefit tax, 0.163% sewerage tax and 0.043% sewerage benefit tax, with education, employment guarantee and tree cesses on top.
- Bills for 2025-26 rose 15.89% on average because capital values were revised for the first time since 2015, not because tax rates changed.
- Residential units of 500 sq ft or less have been exempt since 1 January 2022, though BMC has moved to charge separately for water and sewerage on unmetered small homes.
- Unpaid tax attracts a penalty that portals put at 2% a month. BMC collected a record Rs 7,610.90 crore in 2025-26 and attached 6,922 defaulting properties.
How Mumbai moved from rental value to capital value
Until 2010 Mumbai taxed property on rateable value, a notional rent. A 2009 amendment to the Mumbai Municipal Corporation Act, 1888 switched the base to capital value, and BMC framed the Capital Value Rules in 2010, revised in 2015.
The rules were then challenged. In April 2019 the Bombay High Court upheld the move to capital value but struck down rules 20, 21 and 22, holding that the Act did not empower the Municipal Commissioner to frame them. On 7 November 2022 the Supreme Court confirmed that, and held that capital value cannot factor in a plot's future development potential or FSI. On 25 March 2026 the state introduced a bill to re-enact the capital value rules with retrospective effect and validate past levies. If you have an old dispute or refund claim pending, that bill is the thing to watch.
How BMC builds your capital value
Each element of the formula is a multiplier, so one wrong entry changes the whole bill.
| Factor | What it measures | Values in the rules |
|---|---|---|
| Base value (BV) | The ready reckoner rate for your zone | From the IGR's Annual Statement of Rates |
| User category (UC) | Residential, commercial, industrial and so on | Commercial weights are higher than residential; check the figure on your bill |
| Nature and type of building (NTB) | RCC, load-bearing, semi-permanent | RCC building: 1.00 |
| Age factor (AF) | Years since completion | 1.00 up to 5 years, falling 0.03 every five years to 0.70 beyond 50 years |
| Floor factor (FF) | Floor of a flat in an RCC building with a lift | Ground floor 1.00; upper floors per Schedule D of the rules |
| Area (BA) | The assessed area of the unit | Square metres, as recorded by BMC |
The ready reckoner link is why your tax can rise in a year BMC changes nothing. Our post on the ready reckoner rate in Mumbai has sample rates by area and explains the ASR itself.
The age factor, step by step
The age table rewards older buildings. A flat 5 to 10 years old takes 0.97; 20 to 25 years, 0.88; 30 to 35 years, 0.82; 45 to 50 years, 0.73; over 50 years, 0.70. A 32-year-old building therefore pays 18% less than an identical new one in the same zone, before any other factor.
What goes into the bill
BMC's 2026 civic diary lists the rates below, effective from 1 April 2025. Section 140 of the Act covers the heads that make up property tax.
| Component | Residential | Commercial | Open land |
|---|---|---|---|
| General tax | 0.11% | 0.27% | 0.50% |
| Water tax | 0.253% | 0.62% | 1.148% |
| Water benefit tax | 0.069% | 0.17% | 0.315% |
| Sewerage tax | 0.163% | 0.40% | 0.74% |
| Sewerage benefit tax | 0.043% | 0.105% | 0.195% |
| Sum of these five | 0.638% | 1.565% | 2.898% |
On top of these, residential bills carry municipal education cess (0.04%), state education cess (0.035%), employment guarantee cess (0.01%) and tree cess (0.002%). Added up, that is about 0.725% of capital value. One summary of the same diary gives a residential total of 0.775%, so a street or other levy may apply to some properties; your bill's line items are the final word. Be wary of portals that quote a flat "0.5% for self-occupied homes": that figure does not match BMC's own component list.
Worked example: reading a 2025-26 bill
Suppose your bill shows a capital value of Rs 50,00,000 for a 30-year-old flat, with all the residential components and cesses above applying.
- Five core components: 50,00,000 × 0.638% = Rs 31,900.
- Cesses: 50,00,000 × 0.087% = Rs 4,350.
- Annual property tax: Rs 36,250, payable in two half-yearly instalments of Rs 18,125.
Now check two things. First, if the building turns 30 during a revision cycle, the age factor drops from 0.85 to 0.82: 50,00,000 × 0.82 ÷ 0.85 = Rs 48,23,529 if nothing else changes, and the tax falls in proportion to about Rs 34,971. Second, if you leave one instalment of Rs 18,125 unpaid for three months at 2% a month, the penalty is 18,125 × 2% × 3 = Rs 1,087.50.
If last year's bill was Rs 31,300 and this year's is Rs 36,250, the rise is 15.8%, right on the city's 15.89% average. If yours jumped far more than that, compare each factor with the old bill before you pay.
Paying online, step by step
- Open ptaxportal.mcgm.gov.in, BMC's property tax portal.
- Enter your property account number, printed on the bill, and select the assessment year.
- Check the amount shown against your paper or emailed bill, including arrears.
- Pay by UPI, net banking or card, and download the receipt.
Instalments are generally due by 30 June and 31 December. BMC has extended deadlines ward by ward when bills were delayed, so check the date on the portal each year. Several portals describe early-payment rebates of anywhere from 2% to 10%; we found no BMC notice confirming a rebate for the current year, so do not plan around one.
The 500 sq ft exemption
Residential property with a carpet area of 500 sq ft or less has been exempt from BMC property tax since 1 January 2022. To recover lost revenue, BMC's 2025-26 budget moved to charge water and sewerage separately to unmetered homes in this bracket, affecting about 54,226 properties. So an exempt flat may still get a water and sewerage bill.
Disputing an assessment
If the capital value or a factor is wrong (the wrong user category after you stopped renting to a business, the wrong age, the wrong area), the route under the Act is:
- Complaint: a written complaint to BMC's Assessor and Collector under the complaint provisions of the Act (sections 162 and 163). Attach the occupancy certificate, the registered agreement showing the area, and any society records on use.
- Appeal: if the complaint fails, an appeal to the Chief Judge of the Small Causes Court under section 217. The appeal is admitted only after you deposit the disputed tax, so pay under protest rather than withholding it.
Keep the complaint narrow and factual. A request to re-assess a single factor is far quicker than a challenge to the rules themselves, which is now tangled with the 2026 validating bill.
Where Mumbai's system catches owners out
- Letting the flat changes the tax. The user category weight depends on use; letting to a business or running an office from a flat can move it to a costlier category.
- Arrears follow the property. BMC attached 6,922 properties in 2025-26 over Rs 6,089 crore of dues. Before you buy, ask the seller for the latest paid receipt and a no-dues statement from the society.
- Mutation is not automatic. After purchase, apply to have the bill transferred to your name; our guide to property mutation after purchase sets out the documents.
- Bills can arrive late. Printing and postal delays in the 2025-26 cycle pushed some ward deadlines to November and December. Late delivery does not stop the penalty clock unless BMC extends the date, so track your account online.
If you are comparing running costs across the city before buying, our Mumbai real estate market report gives the price side.
Frequently asked questions
How is property tax calculated in Mumbai?
BMC multiplies the ready reckoner base value by the area and by weights for user category, building type, age and floor to get capital value. It then applies the component rates: for homes, 0.11% general tax plus water, sewerage and benefit taxes, 0.638% in all, with cesses taking the total to about 0.725% of capital value.
Is a flat under 500 sq ft exempt from BMC property tax?
Yes. Residential units with a carpet area of 500 sq ft or less have been exempt since 1 January 2022. The exemption has limits: BMC's 2025-26 budget moved to charge water and sewerage separately to about 54,226 unmetered small homes, so owners may still receive a utility bill.
How do I pay my MCGM property tax bill online?
Go to ptaxportal.mcgm.gov.in, enter the property account number from your bill and pick the assessment year. Check the amount, including any arrears, then pay by UPI, net banking or card and save the receipt. Keep every receipt: a buyer or the society will ask for the latest one.
What is the penalty for late payment of property tax in Mumbai?
Portals and guides put it at 2% a month on the unpaid amount. On a Rs 18,125 instalment, three months late adds about Rs 1,088. Serious defaulters face attachment: in 2025-26 BMC attached 6,922 properties, after which 2,888 owners paid Rs 784.32 crore of arrears.
How can I challenge my BMC property tax assessment?
File a written complaint with the Assessor and Collector explaining which factor is wrong, with documents such as the occupancy certificate and registered agreement. If that fails, you can appeal to the Small Causes Court under section 217 of the Mumbai Municipal Corporation Act, but only after depositing the disputed tax.
Buying in Mumbai and want to understand the full running cost of a flat before you commit? Realty Hunting's advisors can walk you through it.
