Letting a flat looks like passive income right up until the first vacant quarter, the first unpaid month, or the first tenant who repaints the living room black. The landlords who do well in Kolkata are not the ones charging the highest rent. They are the ones who lose the fewest months.

Here is how to rent out your flat in Kolkata properly.

Price it to fill, not to flatter

The most expensive mistake in letting is overpricing by a small amount. A flat listed 8% above market will sit empty for an extra month, and one empty month costs you 8% of the annual rent. You have gained nothing and lost a tenant who would have stayed three years.

Set your asking rent from what comparable units in your own building actually transacted at recently, not from what other owners are asking. Asking prices are aspirations; transacted rents are data.

Kolkata's residential rental yield sits near 4.13%, which is a useful sanity check. If your expected rent implies a yield far above that, you are probably about to sit empty.

Know which tenant pool you are fishing in

This determines everything, and it varies enormously by area.

In New Town and Rajarhat, your tenant is likely an IT professional. Demand is strong and continuous, yields are the best in the city, but tenancies are shorter and the whole pool is tied to one sector's hiring cycle.

In Howrah's Santragachi corridor, you are drawing from families working across the river, students and staff near BE College, and rail commuters. Lower headline rent, but three independent pools means far less correlated void risk. Our Howrah property guide covers each pocket.

In the established south, tenants are typically settled families who stay for years. Yields are compressed because prices are high, but voids are rare and wear is lower.

Match your expectations to your pool rather than to a citywide average. Our rental yield guide goes deeper on where the numbers actually work.

The agreement clauses that matter

Most disputes trace back to something the agreement did not say.

Be explicit about who pays maintenance charges, because in Kolkata this varies by arrangement and assuming is expensive. Specify the security deposit and, crucially, the timeline and conditions for its return, since deposit disputes are the most common landlord-tenant conflict. State the notice period on both sides. Define what counts as fair wear and tear versus damage. And set out the escalation on renewal in advance rather than negotiating from scratch each year.

Register the agreement. An unregistered rental agreement has limited evidentiary weight and registration is inexpensive relative to what it protects.

Check the tenant properly

Verify identity and address, ask for employment confirmation or business proof, and take references from a previous landlord rather than a friend. Complete police verification, which is a legal requirement and also a genuine deterrent.

The temptation to skip this when someone offers to pay six months upfront is exactly when you should not skip it.

What actually eats your return

Vacancy is the largest and the least discussed. One empty month removes 8% of annual rent. Two removes 17%. Everything else is small by comparison, which is why pricing to fill beats pricing to maximise.

Maintenance charges are the second. In a township with a large clubhouse and two pools these are substantially higher per square foot than in a small building, and in most arrangements they fall on you.

Then property tax, which is annual and begins at possession, and periodic costs like repainting between tenants and appliance replacement. Budget something every year even in the years you spend nothing.

Net yield typically lands one to one and a half percentage points below gross. Plan on that rather than on the brochure number.

Furnished, semi-furnished or bare

Furnishing lifts rent but also lifts your replacement liability and the argument surface at move-out. In Kolkata, semi-furnished — fitted wardrobes, kitchen cabinetry, fans, lights, sometimes air conditioning — is usually the efficient middle. Fully furnished suits short-tenancy markets like the IT belt and is a poor fit for family lets.

Tax, briefly, and why it matters more than you think

Rental income is taxable, and most first-time landlords declare it late or not at all, which becomes a problem the moment they sell and the numbers have to reconcile.

Two reliefs are worth knowing about. A standard deduction is available against rental income to cover repairs and upkeep, whether or not you actually spent it. And where the property is financed, the interest component of your EMI is deductible against rental income, which for a recently purchased flat is often substantial enough to reduce the taxable figure considerably.

Municipal taxes you have actually paid during the year are also deductible before that calculation. Keep the receipts.

None of this is a reason to buy or not buy. It is a reason to model your return after tax rather than before it, because the gap between the two on a leveraged property in its early years is wide enough to change your decision.

If you are buying specifically to let

Three rules. Buy the 2 BHK, because rent does not scale with size the way price does and the tenant pool is deeper. Buy ready rather than under construction, because every month of construction is a month of negative cash flow. And buy where tenant demand is structural rather than fashionable.

Joyville Parkside Santragachi is already occupied with the clubhouse open, which means income from month one. DTC Downtown Rajarhat from ₹63 L sits in the strongest yield pocket in the city. Sunshine 2 Uttarpara from ₹33.76 L gives the best gross arithmetic simply because the entry price is so low.

We will give you the real comparables

Including the unflattering ones. Ask us what units in a specific building actually rent for and how long they typically sit empty, before you buy rather than after.

See our rentals service, browse verified properties, or talk to our legal and loan help desk. We are a RERA-registered agent, WBRERA/A/HOW/2025/000651. This is general guidance and not legal advice; have your agreement reviewed professionally.