Property Tax for Kolkata 3 BHK Flats: KMC, NKDA and KMDA Explained 2026
Property tax in Kolkata varies significantly depending on which municipal body governs your area. Here is how KMC, NKDA, and KMDA calculate and collect property tax on residential flats.
Which Authority Governs Your Kolkata Flat?
| Locality | Governing Municipal Body | Tax Collection |
|---|---|---|
| Central Kolkata, South Kolkata (Ballygunge, Alipore, Tollygunge, EM Bypass) | KMC (Kolkata Municipal Corporation) | Annual, KMC portal |
| Salt Lake (Bidhannagar) | Bidhannagar Municipal Corporation (BMC) | Annual, BMC portal |
| New Town (Action Area I, II, III) | NKDA (New Town Kolkata Development Authority) | Annual, NKDA portal |
| Rajarhat (outside NKDA) | Rajarhat-Newtown Municipality / Bidhannagar Municipal Corporation (area dependent) | Annual |
| Garia, Sonarpur, Joka, Behala | KMC or adjoining Panchayat (area dependent) | Annual |
| Barasat, Barrackpore, Sodepur (BT Road) | North 24 Parganas municipalities | Annual |
How KMC Calculates Property Tax: Unit Area Assessment
KMC uses the Unit Area Assessment (UAA) method, introduced in 2017. Tax is calculated as: Carpet Area × Base Unit Area Value (BUAV) × Multiplicative Factor × 0.2 (for residential). BUAV is different for different KMC wards and is determined by the annual letting value of the zone. In practice, a 1,200 sq ft carpet area 3 BHK in a mid-market KMC locality typically pays Rs 3,000–8,000 per year in property tax; premium localities pay Rs 10,000–25,000+ per year.
NKDA Property Tax for New Town Flats
NKDA calculates property tax based on the annual letting value of the flat, which is derived from the prevailing rental rates in New Town. New Town property tax is generally lower than equivalent KMC areas due to NKDA’s planned lower-density development model. Annual property tax for a 1,200 sq ft 3 BHK in New Town AA-II ranges from approximately Rs 5,000–12,000 per year.
Online Property Tax Payment in Kolkata
| Authority | Online Portal | Payment Methods |
|---|---|---|
| KMC | kmcgov.in | Net banking, credit/debit card, UPI |
| NKDA (New Town) | nkdakolkata.gov.in | Net banking, card, UPI |
| Bidhannagar MC (Salt Lake) | bidhannagarmunicipalcorporation.in | Net banking, card, UPI |
Consequences of Non-Payment
Non-payment of property tax in Kolkata attracts monthly interest (typically 10–12% per annum on arrears). Accumulated arrears create a lien on the property, which can block sale or mortgage. Before any resale transaction, the buyer’s lawyer will check for outstanding property tax — unpaid tax must be cleared before registration. For NRIs, appointing a POA holder to pay annual property tax is strongly recommended to avoid accumulated arrears.
Find Your Kolkata 3 BHK in the Right Zone
Understand your property tax zone before buying. Browse WBHIRA-verified projects across all Kolkata municipal areas.
Frequently Asked Questions
How much property tax do I pay on a Rs 1 crore 3 BHK in New Town Kolkata?
For a 1,200–1,400 sq ft 3 BHK in New Town AA-I (Rs 1–1.5Cr range), annual NKDA property tax is approximately Rs 8,000–18,000. This is relatively modest compared to property tax in Mumbai (which can be Rs 50,000–1,00,000+ on a comparable flat). The low property tax burden is a genuine long-term cost advantage of owning in Kolkata.
Is property tax included in the maintenance charge of my Kolkata flat?
No. Property tax is a separate direct obligation between you and the municipal authority. Your maintenance charge goes to the housing society/RWA for common area upkeep. Some societies collect and pay common area taxes on your behalf, but individual flat property tax is always the flat owner’s personal liability. Do not assume your society is handling it — verify separately every year.
How do I transfer property tax records to my name after buying a Kolkata flat?
Apply for mutation at your local municipal authority (KMC ward office, NKDA office, or BMC) after registration of your sale deed. Submit: registered sale deed copy, PAN, ID proof, and the mutation application form. Mutation is typically completed within 30–90 days and results in property tax records being updated in your name. Without mutation, tax bills continue in the previous owner’s name.
Can NRIs pay Kolkata property tax online from abroad?
Yes. KMC (kmcgov.in), NKDA (nkdakolkata.gov.in), and BMC all accept online payment via credit/debit card (including international cards) and net banking. NRIs can pay from abroad using their international card or authorise their POA holder or family member to pay via the portal. Retain payment receipts digitally as proof of tax compliance.
Is Kolkata’s property tax higher or lower than Mumbai and Hyderabad?
Significantly lower. Mumbai’s BMC property tax is 2–5x higher on comparable flats. Hyderabad’s GHMC property tax is also higher than KMC/NKDA for similar-sized flats. Kolkata’s lower property tax is a genuine long-term cost advantage that improves net rental yield and total cost of ownership — an underappreciated factor in Kolkata vs other metro comparisons.
Which Authority Covers Your Property
| Area | Governing Authority |
|---|---|
| Central/South Kolkata | KMC (Kolkata Municipal Corporation) |
| New Town/Rajarhat | NKDA (New Town Kolkata Development Authority) |
| Broader metropolitan planning | KMDA (Kolkata Metropolitan Development Authority) |
Property tax rates and payment portals differ by governing authority, so confirm which one covers your specific address before assuming KMC rates apply city-wide.