What stamp duty is
Stamp duty is a state tax on the instrument, not on the property. You are being taxed on the registration of a document that transfers an interest in immovable property.
Two consequences follow, and both matter:
- It is unavoidable, because an unregistered sale deed is not an effective transfer. This is not a cost you can structure away.
- It is a state subject, so rates, slabs and concessions differ between states and change independently of each other. A figure you read about Maharashtra tells you nothing about Karnataka.
The base: consideration or guidance value
This is the part most often got wrong. Duty is not computed on whatever the parties write in the document. It is computed on the higher of two numbers:
- The consideration stated in the document, that is the price actually being paid.
- The guidance value, the government's assigned minimum value for property in that location.
The rule exists to stop duty being avoided by under declaring the price. Because the government's own minimum sets a floor, declaring less than it achieves nothing. It also means that in a location where guidance value has been revised upward sharply, duty can be higher than your price alone would suggest.
Guidance values are published by the state and revised periodically, and they vary by locality, by street and by property type. Look up the value for the specific property rather than for the area in general.
How the rate is applied
Karnataka applies stamp duty on a slab basis: different rates apply to different value bands, with lower value properties attracting a lower rate and higher value properties a higher one.
Slabs, rates, cess and surcharge are revised by the state, and guidance values are revised separately. A percentage printed in an article has a short shelf life, and an out of date figure in your budget is worse than no figure.
Get the current slab and rate from the Karnataka registration department's official portal, from the sub registrar's office, or from your property lawyer, and ask the developer for a worked figure in rupees for your specific unit.
What is stable is the method, and the method is what you need in order to ask the right question:
Establish the base
The higher of your consideration and the guidance value for that specific property.
Find the applicable slab
Based on that base value, from the current official schedule.
Apply the stamp duty rate
To arrive at the stamp duty amount.
Add cess and surcharge
These are computed on the stamp duty, not on the property value, which is why the effective burden is higher than the headline rate.
Add the registration charge
Calculated separately on the same base.
Cess, surcharge and registration
| Component | Computed on | Ask for |
|---|---|---|
| Stamp duty | The higher of consideration and guidance value, by slab | The slab, the rate and the amount in rupees |
| Cess | The stamp duty amount | The proportion applied |
| Surcharge | The stamp duty amount | Whether the urban or rural rate applies |
| Registration charge | The same base as the duty | The rate and the amount |
| Total | All of the above | One figure in rupees, itemised |
Three separate additions, often conflated into one vague expectation:
- Cess, levied as a proportion of the stamp duty.
- Surcharge, which has differed between urban and rural jurisdictions.
- Registration charge, a separate levy for registering the document, computed on the same base as the duty.
Because cess and surcharge are computed on the duty rather than on the property, the total you pay is meaningfully above the headline stamp duty percentage. Ask for the total in rupees, broken into these lines, rather than a single percentage.
Want a worked stamp duty figure for a specific unit?
The project team can give an indicative figure for your configuration alongside the rest of the cost sheet. Verify it against the current official schedule before you budget.
Concessions
States have at various times offered reduced rates for particular categories of buyer or property. Two cautions:
- Do not assume a concession applies in Karnataka because it applies elsewhere. Several states offer a reduced rate for women buyers; Karnataka's position has not always matched that, and assuming it does can leave a gap in your budget.
- Concessions are revised, sometimes temporarily as a policy measure. Check the position as at your registration date, not as at the date you booked.
Paying and registering
For an under construction purchase, registration of the sale deed normally happens around possession. That places stamp duty and registration in the same period as deposits, the clubhouse and corpus charges, the maintenance advance, interiors and the start of full EMI.
That clustering is the practical risk. The full list of what arrives when is worth mapping against your own cash flow early, because this is the point at which an otherwise sound budget can fail.
Note also that the agreement for sale and the sale deed are different documents with different stamp implications, and that your lender will usually want the registered deed before final disbursement. Sequence matters.
What to ask
- What is the guidance value for this specific property?
- What is the base on which duty will be computed, consideration or guidance value?
- What is the current slab and rate for that base?
- What are the cess, surcharge and registration charge, as separate figures?
- What is the total in rupees, all lines included?
- Does any concession apply to me, and is it current as at the expected registration date?
- Does my lender fund any part of this, or is it entirely from my own funds?
- When is registration expected, relative to possession?
This explains how the mechanism works. It is not financial, tax or legal advice, rates and rules change, and your position depends on your own circumstances. Confirm the figures with your chartered accountant and have a property lawyer read your agreement.
How is stamp duty calculated in Karnataka?
On the higher of the consideration stated in the document and the government guidance value for the property. A percentage is applied according to a slab based on that value, and cess and surcharge are then levied on the stamp duty. A separate registration charge is calculated on the same base.
What is guidance value?
The minimum value the government assigns to property in a given location for the purpose of calculating stamp duty. It is revised periodically. If the price you are paying is above the guidance value, duty is calculated on your price; if it is below, duty is calculated on the guidance value.
Can I reduce stamp duty by declaring a lower price?
No, because the calculation uses the higher of the declared consideration and the guidance value, so declaring less than guidance value does not reduce the duty. Understating consideration in a registered document also carries legal and tax consequences. There is nothing to gain and a great deal to lose.
Is there a concession for women buyers in Karnataka?
Concessions available to particular categories of buyer differ between states and change over time, and Karnataka's position has not always matched that of other states. Do not assume a concession applies. Check the current position on the registration department's portal or with a property lawyer before building it into your budget.
When do I pay stamp duty and registration?
At registration of the sale deed, which normally happens around possession for an under construction purchase. It falls due alongside deposits, the maintenance advance and often the start of full EMI, so it is part of the cluster of costs that arrive together.
Does the home loan cover stamp duty?
Usually not, or not fully. Lenders generally fund a share of the property value and treat stamp duty and registration as costs you meet from your own funds. Confirm your lender's position in writing, because this is a large sum to discover is unfunded.