A Bengaluru buyer closed on a resale flat, moved in, and a year later received a demand notice for property tax that had gone unpaid for three years before she owned the place. The seller had quietly let the dues pile up, and the arrears now sat against the property she had bought. Clearing them cost her a sum she had never budgeted for, and none of it would have happened if she had spent ten minutes checking the tax record before she paid. BBMP property tax is easy to overlook in a purchase, but the paid up receipt is one of the cheapest and most important checks a buyer can make.

The short answer. BBMP property tax is calculated using the Unit Area Value method, based on your property's zone, built up area and usage, with a cess added and a reduction for the building's age. You pay it online on the official BBMP portal using the property identification number, and paying the full year before the deadline earns a 5 percent rebate. The trade off for a buyer is simple: check the tax is fully paid and free of arrears before you buy, because unpaid dues attached to the property become your problem once you own it.

How is BBMP property tax calculated?

BBMP uses the Unit Area Value method, which sets the tax from the property's built up area, its zone and its usage rather than a case by case valuation. The city is divided into zones, and each zone carries a per square foot rate; that rate is applied to your built up area, adjusted for whether the property is residential, commercial or vacant, and for the age of the building, then a cess is added on top of the computed tax. Older buildings get a depreciation reduction, so two identical flats can pay different tax if one sits in a costlier zone or is newer.

The table below sets out the main factors that drive your bill, so you can sense check the figure the portal shows against the property you are buying.

The cess is worth understanding because it is a meaningful add on. As a property tax guide explains, BBMP adds a cess of 24 percent on the computed property tax, so the figure from the area and zone alone is not the final number. This is one reason to rely on the portal's calculation rather than a rough estimate, since it folds in the cess and the age based depreciation automatically.

You do not need to run this calculation by hand, since the portal computes it, but understanding the drivers helps you spot when a record looks wrong, for example if the usage or area on file does not match the flat you are buying.

How do I pay BBMP property tax online?

You pay it on the official BBMP property tax portal using your property identification number. On bbmptax.karnataka.gov.in you enter the property identification number, the self assessment application number or the renewal application number along with the owner name, the system retrieves the property details and the amount due, and you complete payment by card, net banking or other methods. The receipt is usually available to download a short while after payment, so complete the payment and then return to the portal to save the official receipt as a PDF, which is the document you keep as proof.

Keeping that receipt matters beyond the current year. It carries the property identification number you need for future payments, and it is one of the documents that ties into the property record and the khata. Our guide to e-Khata and A versus B khata explains how the tax record and the khata now sit together in the civic system.

What is the rebate for paying property tax early?

BBMP offers a 5 percent rebate when you pay the full year's tax in a single payment before the deadline. The rebate applies to full payment made in the first month of the financial year, before the end of April, and the portal applies it automatically when you pay in time. Paying in instalments or after the deadline means you forgo the rebate, so for most owners a single early payment is the cheaper route.

For a buyer, the rebate is a small but real saving worth planning for once the property is in your name. In your first year of ownership, note the deadline and pay the full amount early so you capture the 5 percent, rather than letting the first bill slip and paying the full figure late.

Why should a buyer check property tax before buying?

Because unpaid tax and arrears attach to the property, and you can inherit them. The portal shows the current year's dues along with arrears from previous years, so a quick lookup tells you whether the seller has kept the tax current or let it lapse. If arrears exist, they should be cleared by the seller before you complete, since chasing a former owner for old dues after the sale is far harder than making payment a condition of the deal.

The tax record also needs to be consistent with the rest of the property's papers. The usage, area and owner on the tax record should match the khata and the sale deed, and a mismatch can signal an unauthorised change or a record that needs correcting. Checking the property tax alongside the BBMP betterment charges that can also apply gives you a fuller picture of what the property owes the city.

There is a further reason to get this right now. With the property tax record increasingly linked to the digital khata and to registration, a property carrying old arrears or an out of date record can create friction well beyond the tax office. Clearing the dues and correcting the record before you buy keeps the property clean across the tax, khata and registration systems, rather than leaving you to untangle a tangle of records after you have already paid for the home.

What is the PID or SAS number and where do I find it?

The property identification number, or PID, is the unique number BBMP uses to identify your property for tax, and the self assessment application number is the reference for properties assessed under the self assessment scheme. You find these on the previous year's tax receipt, which is exactly why you should ask the seller for that receipt during a purchase. With the PID you can look the property up on the portal yourself rather than relying on the seller's word that the tax is paid.

If a seller cannot produce a recent receipt or the PID, treat that as a prompt to dig further, not a minor gap. It may simply be misplaced, or it may point to unpaid tax or a property that is not properly recorded. Either way, you want the number and the paid receipt in hand before you pay, so consider an apartment such as a project like Embassy Codename Yelahanka the same way: ask for the tax record and the PID and verify them on the portal.

What should a buyer do about property tax at purchase?

Make the paid up tax and a clean record a condition of the deal. The steps below turn the property tax check into a simple routine you run before any money changes hands, and again after you take ownership.

1. Ask the seller for the latest paid property tax receipt and note the property identification number.
2. Look the property up on bbmptax.karnataka.gov.in and check for any arrears.
3. Confirm the record matches the property's zone, built up area and usage.
4. Make the seller clear any arrears before you complete the purchase.
5. Check that the tax record and the khata carry consistent details.
6. After purchase, update the record to your name for the next cycle.
7. Pay the full year early, before the April deadline, to claim the 5 percent rebate.

Running these seven steps means you inherit a clean tax position rather than someone else's arrears, and you start your ownership with the record correctly in your name. It is a low effort check with a high payoff, because an unpaid tax demand that surfaces after you move in is both a financial shock and a hassle to trace back to the previous owner.

Frequently asked questions

How is BBMP property tax calculated?

BBMP uses the Unit Area Value method. The tax is based on your property's zone, its built up area and its usage, whether residential, commercial or vacant, with a cess added on the computed tax and a reduction for the building's age. The portal computes the figure, so you enter your property details rather than calculate it by hand.

How do I pay BBMP property tax online?

Pay it on the official portal at bbmptax.karnataka.gov.in. Enter your property identification number, self assessment application number or renewal application number along with the owner name, check the amount due, and pay by card or net banking. Download the receipt afterwards and keep it, since it carries the property identification number you will need again.

Is there a rebate on BBMP property tax?

Yes. BBMP gives a 5 percent rebate when you pay the full year's tax in a single payment before the deadline, which falls in the first month of the financial year, before the end of April. The portal applies the rebate automatically when you pay in time, so an early single payment is usually the cheaper option.

Should I check property tax before buying a flat?

Yes. Look the property up on the BBMP portal with the property identification number and check for arrears, because unpaid tax attached to the property can become your liability after purchase. Make the seller clear any dues before you complete, and confirm the tax record matches the khata and the sale deed.

Last updated 2026-07-12. PropNewz Team.