The real cost of buying a flat in Mumbai, line by line
The number in the advertisement is not the number you pay. That is not usually deception — most of these charges are legitimate and some are statutory. The problem is that they are disclosed one at a time, across several weeks, each one small enough to absorb, by which point walking away feels more expensive than paying.
Here is the full list, in the order you will meet it.
The statutory charges
These are set by government, not by your builder, and they are not negotiable. What follows are the headline rates applicable in Mumbai at the time of writing. Rates change with each state budget — confirm the current figure with the Department of Registration and Stamps before you budget.
| Charge | Rate | Set by |
|---|---|---|
| Stamp duty (Mumbai) | 5% + 1% metro cess = 6% | Government of Maharashtra |
| Registration fee | 1% of agreement value, capped at ₹30,000 | Government of Maharashtra |
| GST — under construction | 5%, no input tax credit | GST Council |
| GST — affordable housing | 1%, no input tax credit | GST Council |
| GST — completed, OC received | Nil | GST Council |
Two things buyers get wrong here
Stamp duty is charged on the higher of the agreement value or the ready reckoner value, not simply on what you paid. And GST disappears entirely once the occupancy certificate is issued — which is why a ready flat and an under-construction flat at the same headline price are not the same purchase.
Maharashtra has at times offered a concession in stamp duty where the purchaser is a woman and the property is held in her name, subject to conditions including restrictions on resale. If that applies to your situation it is worth confirming the current terms, because on a Mumbai flat one percentage point is a substantial sum.
The builder-side charges
These vary by project and are where the real variance lies. Ask for every one of them in writing, as a rupee figure, before you pay a token.
- Club or amenities membership. Often a one-time charge for access to facilities you were shown in the brochure. Ask whether it is one-time or recurring, and what happens if the amenity is delivered late.
- Car parking. Charged separately in most Mumbai projects. Clarify whether you are buying a specific, identified space and whether it is covered.
- Maintenance deposit / advance maintenance. Typically a lump sum covering a fixed initial period. Ask what the monthly figure becomes afterwards — this is a permanent cost, and the advance period ends.
- Society formation and share money. Administrative, usually modest.
- Infrastructure or development charges. Ask precisely what these cover. This line item is the least standardised and the most worth questioning.
- Electricity and water meter deposits. Pass-through to the utility, generally fixed.
- Legal and documentation charges. The builder's legal cost, passed to you. Negotiable more often than buyers assume.
The costs that are yours alone
- Home loan processing fee, typically a percentage of the sanctioned amount, often waivable on request.
- Legal opinion from your own advocate. Do not skip this to save a few thousand rupees on a purchase of this size.
- Technical valuation, where your lender requires it.
- Brokerage, if you used an agent, usually a percentage of the transaction value.
- Interiors and fit-out, which is genuinely open-ended and where budgets most often break.
How to make the number honest
Ask the builder for a single sheet listing every charge to registration, as rupee amounts, with each one labelled one-time or recurring. A builder who will not produce that has told you something useful.
Then do the comparison properly. Divide the all-in figure by the carpet area. Two flats quoted at a similar rate per square foot can land a long way apart once statutory charges, parking, club membership and GST treatment are in.
The ready-versus-under-construction arithmetic
A completed flat with an occupancy certificate attracts no GST. An under-construction flat attracts 5% with no input credit. Before concluding that the under-construction option is cheaper, add that back, along with the rent you will pay until possession — and weigh it against the delivery record you found on MahaRERA.
Why this matters beyond budgeting
Buyers rarely walk away over the headline price. They walk away, or fail to, over the accumulated gap between what they planned for and what they were asked for — usually at the point where the deposit is already paid and refusing feels more expensive than agreeing.
Getting the total on paper at the start removes that dynamic entirely. It is the cheapest negotiating advantage available to you, and it costs a single email.
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