KEY TAKEAWAYS
- The self-assessment system relies on your declarations. Errors are your responsibility, even if they came from an old record.
- The costliest errors are wrong usage (rented declared as self-occupied), wrong area and wrong zone.
- Paying on old details after a change, such as a new floor or a sale, builds a future liability with penalties.
- Keep paying on time while you apply for a correction with documents.
- Clean tax records make khata transfer, conversion and sale much easier.
Bengaluru's property tax uses a self-assessment system. The portal fetches last year's details and calculates the tax, and most owners pay without checking. That is how errors carry forward for years, until a sale, a khata transfer or an inspection turns them into a demand with penalties.
These are the mistakes I see most often, what they cost, and how to fix each one.
1. Declaring a Rented Property as Self-Occupied
Rented residential property is taxed at a higher rate than self-occupied property. Continuing to declare a home as self-occupied after you rent it out underpays the tax. If discovered, the difference becomes a demand with interest and penalties.
Fix: update the usage category when you rent the property, and pay at the correct rate. If you have underpaid in past years, consider regularising it before it is picked up.
2. Wrong Built-Up Area
The area on the tax record may differ from the actual built-up area, sometimes because of old data, sometimes because extensions were never declared. Too high and you overpay every year; too low and you build a liability.
Fix: compare the tax record with the approved plan and the sale deed. Apply to the revenue office for a correction with supporting documents.
3. Wrong Zone
Each area is classified into a zone from A to F, and the rate depends on the zone. A property recorded in the wrong zone pays the wrong amount. See property tax zones explained.
Fix: check the zone against neighbouring properties and the published classification, and apply for a correction if needed.
4. Not Declaring Additions
A new floor, a penthouse room on the terrace, or a converted garage increases the built-up area. Paying on the old area means underpayment that grows each year.
Fix: declare the additional area in the self-assessment. Remember that unapproved construction raises separate issues beyond tax.
5. Paying in the Previous Owner's Name
After buying a property, many owners keep paying tax on the old record without transferring the khata. The tax is paid, but the record still shows the previous owner, which causes problems when you sell or need permissions.
Fix: complete the khata transfer and pay in your own name.
6. Wrong Year of Construction
The building's age affects the depreciation allowance. A wrong construction year can increase or reduce the tax incorrectly.
Fix: check against the occupancy certificate or completion records and correct it.
7. Paying by Instalment Without Realising the Cost
Paying in two instalments is allowed, but it means you lose the 5% rebate for full payment before the deadline. Over years, that adds up.
Fix: pay the full year in one go before the rebate deadline when you can. See how to pay online.
8. Not Keeping Receipts
Receipts are proof of payment for khata, loans and sales. Many owners cannot find old receipts when they need them.
Fix: download every receipt, keep digital and paper copies, and store them with your property documents.
How Corrections Work
- Identify the error and gather supporting documents: sale deed, e-khata, approved plan, occupancy certificate, rental agreement or proof of self-occupation.
- Apply to the city corporation's revenue office, with a written request explaining the correction.
- Respond to any inspection or request for documents.
- Once corrected, check the updated record on the portal and pay any revised amount.
- Keep paying on time while the correction is pending, to avoid penalties.
Frequently Asked Questions
What happens if I declare my rented flat as self-occupied?
You underpay tax. If discovered, the difference can be demanded with interest and penalties. Update the usage category when you rent out the property.
How do I correct the area on my property tax record?
Apply to the city corporation's revenue office with the approved plan, sale deed and e-khata. An inspection may be needed.
Can I correct property tax errors online?
Some details can be updated in the self-assessment, but substantive corrections such as area, zone or ownership usually need an application with documents to the revenue office.
Should I keep paying tax while a correction is pending?
Yes. Paying on time avoids penalties; any excess can be adjusted once the correction is made.
Why does my tax still show the previous owner's name?
The khata has not been transferred. Complete the khata transfer and then pay in your own name.
Most property tax problems start as a small error that nobody checked. If you want a review of your tax record or help with a correction, see our liaison and approvals service or message me on WhatsApp.
Sources
- PropNewz: BBMP property tax under GBA, zones, rebates and deadlines (2026)
- OneCity Property: BBMP property tax online payment (2026)
- BBMP property tax portal
Last updated Oct 1, 2026. Figures and rules change; check current details with a professional before you act.