Bidhannagar Municipal Corporation Mutation for Co-op Flats: Estate-wise Document Lists (Karunamoyee to Vidyasagar)
04 Nov 2026
Quick answer
A co-operative flat in West Bengal is transferred by a registered deed, so you pay stamp duty and registration fee like any other flat purchase – but co-op buyers also have to line up the society's consent and membership before the deed. Here are the 2026 rates and the mistakes that cost people money.
Key points
- Stamp duty: 6% up to ₹1 crore and 7% above in corporation, municipal and notified areas; 5% and 6% in other areas.
- Registration fee: 1% of market value.
- Duty is on the higher of the agreed price and the government's market value.
- The 2% rebate and 10% circle-rate cut (from 30 Oct 2021) were withdrawn from 1 July 2024.
- There is currently no women-specific concession in West Bengal (check before you register).
Real problems and practical solutions
Problem 1: Deed registered before the society's consent
What happens: Buyer and seller registered the sale deed first; now the society refuses membership.
Solution:
- Always get written society consent under Rule 138 before registering.
- If it already happened, apply for membership immediately with the deed and Section 87 declarations; if refused, file a dispute or appeal before the Registrar.
- See transfer guide.
Legal basis: Rule 138, WBCS Rules 2011
Problem 2: Price below the government's market value
What happens: The agreed price is ₹40 lakh but the market value assessed is ₹48 lakh.
Solution:
- Stamp duty is charged on the higher figure – ₹48 lakh here.
- Check market value in advance on the Registration Department's calculator.
- If you believe the valuation is wrong, raise it with the Registering Officer before registration.
Legal basis: WB stamp law; Registration Department calculator
Problem 3: Buyer budgeted for the old rebate
What happens: An online article said stamp duty is 2% lower; the buyer is short at the registry.
Solution:
- The rebate scheme introduced on 30 October 2021 ended from 1 July 2024.
- Recalculate with current rates and confirm on the official calculator the week you register.
Legal basis: WB Government circular (July 2024)
Problem 4: Gift of a co-op flat to a family member
What happens: Parents want to gift a flat to a daughter.
Solution:
- The West Bengal Finance Act 2024 capped the stamp duty on gifts under Schedule IA, Article 33 at ₹1,000 (it was 0.5% of market value) – confirm on the official calculator. See gifting a co-op flat to family.
- Society consent and membership of the donee are still needed.
Legal basis: Stamp law; Rule 138
Current rates
| Location | Value up to ₹1 crore | Value above ₹1 crore | Registration fee |
|---|---|---|---|
| Kolkata Municipal Corporation, other municipal corporations, municipalities, notified areas (e.g. Bidhannagar) | 6% | 7% | 1% |
| Other areas (panchayat) | 5% | 6% | 1% |
Worked example
| Item | ₹60 lakh co-op flat in Kolkata |
|---|---|
| Stamp duty @ 6% | ₹3,60,000 |
| Registration fee @ 1% | ₹60,000 |
| Total govt. charges | ₹4,20,000 (plus incidental charges) |
Co-op-specific steps around registration
- Society consent (Rule 138) – 30-day decision.
- Agreement and membership application – buyer applies with the bipartite agreement.
- Market value check on the Registration Department's calculator; pay through GRIPS.
- Register the deed at the Sub-Registrar's office (online slot booking).
- Give the society a certified copy of the deed; share certificate transferred.
- Mutation with the municipality – KMC, Bidhannagar, New Town.
Leasehold areas need lessor permission too: Salt Lake and New Town.
Registration-day checklist
- Society consent letter and membership application acknowledgement.
- Draft deed vetted by your lawyer.
- GRIPS payment receipts for stamp duty and fees.
- ID and PAN of both parties; witnesses.
- Lessor permission (Salt Lake/New Town leasehold) where required.
Stamp duty: frequently asked questions
What is the stamp duty on a flat in Kolkata in 2026?
6% for property up to ₹1 crore and 7% above, plus 1% registration fee.
Is the 2% stamp duty rebate available in West Bengal?
No. The rebate and 10% circle-rate reduction introduced on 30 October 2021 were withdrawn from 1 July 2024.
Do women get lower stamp duty in West Bengal?
Current guides report no gender-based concession. Check the official calculator before registration.
Is a co-op flat transfer registered like a normal sale?
Yes, the transfer is by a registered instrument, after the society's written consent.
Where do I check market value?
On the West Bengal Registration Department's online calculator for market value, stamp duty and registration fee.
Is stamp duty charged on the share certificate?
The main duty is on the registered transfer deed; ask your lawyer about any duty on share transfer forms.
Who pays stamp duty?
Usually the buyer, unless agreed otherwise.
What is the stamp duty on gifting a co-op flat to a family member in West Bengal?
The West Bengal Finance Act 2024 capped the duty on gifts under Schedule IA, Article 33 at ₹1,000 (previously 0.5% of market value). Check the current figure and the registration fee on the Registration Department's calculator before booking.
Sources and review
- Ujjivan SFB – stamp duty and registration fee in Kolkata/West Bengal
- Sidus Realty – stamp duty and registration charges in Kolkata (2026)
- Liyaans – West Bengal ends 2% stamp duty rebate and 10% circle-rate cut (July 2024)
- Rule 138, WBCS Rules 2011 – transfer and letting out
Facts checked against the sources listed on 29 October 2026.
Next step: read the society management guide, or keep your society's records in order with COOPMAN.
