On top of the price of a flat in Tamil Nadu, plan for stamp duty of 7% and a registration fee of 4%, which is 11% together, plus GST if the flat is still under construction. On a ₹70 lakh flat, that is about ₹7.7 lakh in duties before GST. Check the project's RERA registration, the title documents and the payment schedule before you pay anything beyond a small booking amount.
The percentages below come from recent Tamil Nadu sources. Rules change, so confirm the figures with the sub-registrar's office or the state registration portal on the day you register.
What does it really cost to buy a flat in Mahindra World City?
Here is a worked example. The price is illustrative and is not an Urbanrise price.
| Item | How it is worked out | Amount on a ₹70 lakh flat |
|---|---|---|
| Agreement price | As quoted | ₹70,00,000 |
| Stamp duty | 7% | ₹4,90,000 |
| Registration fee | 4% | ₹2,80,000 |
| Duties subtotal | 11% | ₹7,70,000 |
| GST (under-construction flat) | Check the current rate for your flat category | Ask for it in writing |
| Total before GST and other charges | ₹77,70,000 |
Two things people miss. First, duties are charged on the higher of the sale price and the government guideline value, so if the guideline value is higher, your duty is higher. Second, "all-in price" means different things to different sellers. Ask whether it includes parking, club membership, maintenance deposit and the corpus fund.
Stamp duty and registration charges in Tamil Nadu
Tamil Nadu levies stamp duty and a separate registration fee on a sale deed. Recent 2025 and 2026 sources put them at 7% and 4%. Some older pages quote lower figures, including a 2% registration fee, which I could not find in any current source. Do not rely on a blog, including this one, for the final number. Ask the registration office for the figure and write it in your budget.
GST on under-construction flats
GST applies to under-construction flats and is generally not charged on a completed flat that has an occupancy or completion certificate. The rate depends on the flat category. Ask the seller to show the GST line on the cost sheet, and ask how it changes if the project is completed before you register.
Home loan EMI: what a loan on a Mahindra World City flat looks like
EMI per ₹1 lakh borrowed, on a 20-year loan, at illustrative interest rates:
| Interest rate | EMI per ₹1 lakh | On a ₹56 lakh loan (80% of ₹70 lakh) |
|---|---|---|
| 8.00% | ₹836 | about ₹46,800 |
| 8.50% | ₹868 | about ₹48,600 |
| 9.00% | ₹900 | about ₹50,400 |
| 9.50% | ₹932 | about ₹52,200 |
Rates change. Ask your bank for the current rate and the processing fee. A good rule I give every buyer: keep the total EMI below about 40% of your take-home pay, and keep six months of EMI in cash.
Documents to check before you buy a flat in Mahindra World City
Check in this order. If any step fails, stop and ask questions.
- RERA registration of the project. See how to check RERA registration in Tamil Nadu.
- Title deed and parent documents for the land, going back at least 30 years.
- Encumbrance certificate for the plot to confirm there are no loans or disputes.
- Patta and chitta to confirm ownership records match the seller.
- Approved plan and building permission from the planning authority, with the approved floor area.
- Bank approvals from the lenders you plan to use. If a major bank has approved the project, that is a useful extra check.
- Draft agreement of sale read by a lawyer you choose, not one the seller recommends.
Payment schedule and how to protect your money
Pay in stages linked to construction, not in advance. Under RERA, a builder must not take more than 10% before signing the agreement for sale, and must keep 70% of customer money in a separate account for that project. Ask to see the registration number and the account arrangement, not just a promise.
Hidden costs checklist for flat buyers
- Maintenance deposit and corpus fund
- Club and amenity charges
- Covered parking
- Electricity and water connection charges
- Loan processing and legal fees
- Interiors and modular kitchen
- Society formation costs
Ask for every item in writing, with the amount, on one page.
Mistakes I see buyers make
- Comparing price per sq ft without checking whether it is carpet or super built-up area. See price per sq ft in Mahindra World City.
- Paying a large booking amount before reading the agreement.
- Skipping the site visit at office hours. Use our site visit checklist.
- Forgetting the flood question. See our flood-safe flat checklist.
FAQs about buying a flat in Mahindra World City
How much stamp duty do I pay on a flat in Tamil Nadu?
Recent sources give 7% stamp duty plus a 4% registration fee. Confirm with the registration office before you budget.
Is GST charged on every flat?
No. It generally applies to under-construction flats and not to a completed flat with a completion certificate. Ask for the rate in writing.
Can NRIs buy a flat here?
Yes, with a few extra steps. Read the NRI guide.
What is the first document to check?
The project's RERA registration, because it opens the plan, the promoter's details and the timeline in one place.
Should I buy now or wait for the infrastructure?
Read the infrastructure status first. It separates approved work from proposals.
Ready to see a project? Open Urbanrise Spring Tide, Phase 2 for current configurations, floor plans and the RERA number.
Sources: Tamil Nadu stamp duty and registration percentages from three 2025 and 2026 property-tax guides (open the registration department portal to confirm); RERA provisions from the Real Estate (Regulation and Development) Act, 2016.
