Ready Reckoner Rate Mumbai: The Floor Under Your 2026 Stamp Duty Bill

On April 1, 2026, something unusual happened to the price of buying a flat in Mumbai. Nothing changed. The Office of the Inspector General of Registration and Controller of Stamps (IGR Maharashtra) confirmed that the ready reckoner rates for the 2026-27 financial year would stay at status quo, frozen at the levels set a year earlier. For a city where the valuation floor under every property deal usually creeps upward each April, a freeze is news. It means the ready reckoner rate Mumbai relies on, the number that quietly decides your minimum stamp duty bill, did not move, even as flat prices in many pockets kept rising.

The short answer. The ready reckoner rate Mumbai uses (formally the Annual Statement of Rates, or ASR) is the government's notified minimum value for property in your locality, and stamp duty is charged on the higher of your agreement value or this rate. For 2026-27 the rate is frozen, but stamp duty in Mumbai still sits at 6 percent for male buyers and 5 percent for female buyers (both including the 1 percent metro cess), plus a 1 percent registration charge capped at Rs 30,000. The trade-off: a frozen rate does not lower your cost, it only stops the floor from rising, and if your negotiated price drops below the ASR you still pay duty on the higher official figure.

Quick facts. In Mumbai, IGR Maharashtra kept ready reckoner rates unchanged for financial year 2026-27 effective April 1, 2026, after a 2025-26 statewide average increase of about 3.89 percent (with Mumbai near 3.39 percent), per IGR Maharashtra and multiple property outlets.

What is the ready reckoner rate in Mumbai, and who sets it?

The ready reckoner rate is the minimum value the Maharashtra government assigns to land and built-up property in each locality, and the state revenue department sets it through IGR Maharashtra. It is published once a year as the Annual Statement of Rates, broken down by zone, sub-zone, and building type, so a sea-facing tower in Worli carries a very different notified rate from a walk-up in the suburbs. Because the rate is a per-square-metre figure, your flat's official floor value is the rate multiplied by its built-up area, adjusted for factors like floor level and lift. This is the number tax authorities treat as the property's worth even if your sale agreement says less.

For 2026-27, the state chose not to raise these rates. Revenue Minister Chandrashekhar Bawankule, acting on directions attributed to Chief Minister Devendra Fadnavis, kept the ASR at a freeze to avoid adding to buyer costs while the property market stayed active. You can confirm the locality-level rates through the official portal at IGR Maharashtra, which hosts the e-ASR valuation tool.

How does the ready reckoner rate Mumbai publishes set the floor for stamp duty?

Stamp duty is always calculated on the higher of your agreement value or the ready reckoner value, so the ASR acts as a hard floor below which the tax cannot fall. If you negotiate a flat down to a price below the notified rate, the government still computes duty on the official figure, not your bargain. This rule exists to block undervaluation, where a buyer and seller declare an artificially low price on paper to shrink the tax. In practice it means the ready reckoner rate Mumbai publishes is not just a reference number, it is the minimum tax base for your purchase.

Consider a flat with a notified ASR value of Rs 1.5 crore. Even if a soft market lets you agree on Rs 1.4 crore, your stamp duty is charged on Rs 1.5 crore. The frozen 2026-27 rate matters here because it caps how high that floor can climb this year, but it does not pull the floor down. For buyers in localities where the freeze leaves the ASR above current market sentiment, the catch is real: you may pay duty on a value higher than what you actually paid.

What is the stamp duty rate on a Mumbai flat in 2026?

Stamp duty on a residential flat in Mumbai is 6 percent for male buyers and 5 percent for female buyers, and both figures already include the 1 percent metro cess levied to fund metro infrastructure. The 1 percent concession for women is meant to encourage property ownership in their names and applies when the buyer is a woman holding the flat in her own name. On top of stamp duty, you pay a registration charge of 1 percent of the property value, which is capped at Rs 30,000 for properties valued above Rs 30 lakh.

These rates apply to the floor value described above. So for a flat where the ready reckoner value is Rs 1.5 crore, a male buyer pays Rs 9 lakh in stamp duty (6 percent) plus Rs 30,000 registration, while a female buyer pays Rs 7.5 lakh (5 percent) plus Rs 30,000. The metro cess is not an optional extra you can negotiate away, it is baked into the headline rate. We covered the cess mechanics in detail in our guide to Maharashtra stamp duty and the metro cess in Mumbai.

How do the frozen 2026-27 rates compare with last year's hike?

The 2026-27 freeze is a clear break from 2025-26, when rates rose after a two-year gap. For financial year 2025-26, effective April 1, 2025, IGR Maharashtra raised the ASR by a statewide average of roughly 3.89 percent, with municipal corporation areas seeing larger jumps and rural belts smaller ones. Mumbai's own increase was relatively modest at around 3.39 percent, lighter than several other corporations in the state. The 2026-27 freeze itself was widely reported as a relief measure for the real estate sector, as covered by the Free Press Journal report on the rate freeze. The table below sets the two years side by side and shows what stays constant for a buyer.

The comparison makes the trade-off plain. A freeze stops the floor from rising, but it does not cut the stamp duty percentage or the registration charge, so your headline cost on a given flat is broadly the same as last year unless your agreement value sits above the ASR.

How do you check the ready reckoner rate for your specific flat?

You check it through the official e-ASR tool on the IGR Maharashtra portal, where you select your district, taluka, village or zone, and the relevant sub-zone to find the notified per-square-metre rate. The portal lets you locate the exact valuation zone your building falls in, which matters because rates shift sharply between adjacent zones in the same suburb. Once you have the per-square-metre rate, multiply it by your flat's built-up area and apply any adjustments the schedule lists for floor rise, lift, or amenities to arrive at the official floor value.

Do this before you sign, not after. If your agreement value is below the ASR, you will be taxed on the higher official figure, and knowing this in advance lets you budget the real stamp duty rather than the optimistic version. It also helps you spot whether a seller's quoted price is suspiciously close to or below the floor, which can flag a valuation gap you will end up paying tax on.

What happens if you underpay stamp duty based on a wrong valuation?

If you pay stamp duty on a value lower than the correct ready reckoner floor, the registration authority can treat the instrument as under-stamped and demand the shortfall along with a penalty. The whole reason the ASR exists is to remove discretion from valuation, so a deal stamped below the notified rate is an obvious red flag during scrutiny. Penalties for deficient stamp duty have tightened, and the cost of getting the valuation wrong can be significant. We explain the exposure and how recovery works in our coverage of stamp duty penalties in Mumbai.

The defensive move is simple. Compute the ASR floor yourself, pay duty on the higher of that floor or your agreement value, and keep the e-challan and valuation printout with your records. Because the 2026-27 rate is frozen, the floor you compute today should hold through the financial year, which removes one variable from your planning.

Your seven-point buyer checklist for ready reckoner and stamp duty in Mumbai

1. Look up your flat's notified rate on the IGR Maharashtra e-ASR tool by district, taluka, and valuation zone before signing anything.
2. Multiply the per-square-metre rate by built-up area and apply floor and lift adjustments to get the official floor value.
3. Compare that floor against your agreement value, and budget stamp duty on whichever is higher.
4. Apply 6 percent for a male buyer or 5 percent for a female buyer, remembering the 1 percent metro cess is already inside those rates.
5. Add the registration charge of 1 percent, capped at Rs 30,000 for property valued above Rs 30 lakh.
6. Confirm the 2026-27 freeze still applies to your zone, since the status quo holds the floor steady for the financial year.
7. Pay through the official GRAS e-challan system and retain the receipt and valuation printout for your registration appointment.

Does the frozen 2026-27 ready reckoner rate reduce my stamp duty?

No. The freeze holds the valuation floor at its 2025-26 level, so it stops your minimum tax base from rising, but it does not cut the stamp duty percentage. In Mumbai you still pay 6 percent as a male buyer or 5 percent as a female buyer, plus registration. The benefit is stability, not a discount on your purchase cost.

Is stamp duty charged on my agreement price or the ready reckoner rate?

Stamp duty is charged on whichever is higher, your agreement value or the ready reckoner value for your locality. If you negotiate a price below the notified rate, the government still computes duty on the higher official figure. This rule blocks undervaluation, so checking the Annual Statement of Rates before you sign is essential to budget the real cost.

What is the metro cess and is it separate from stamp duty in Mumbai?

The metro cess is a 1 percent levy that funds metro projects, and in Mumbai it is already included inside the headline stamp duty rate. So the 6 percent for male buyers and 5 percent for female buyers each contain that cess. You cannot add it separately, but you also cannot negotiate it away.

Where do I find the official ready reckoner rate for my Mumbai flat?

You find it on the IGR Maharashtra portal using the e-ASR valuation tool, which lets you drill down to your district, taluka, and valuation zone for the notified per-square-metre rate. Multiply that rate by your flat's built-up area, apply the listed floor and amenity adjustments, and you have the official floor value used to compute your stamp duty.

Last updated 2026-06-26. PropNewz Team.