A Bengaluru family was promised the keys to their flat by December, planned a move, and enrolled the children in a nearby school. A year later they were still renting, still paying an EMI on a home they could not live in, and being told the project was almost done. What most buyers in that position never realise is that the law does not just sympathise, it pays. Under RERA Section 18, a builder who misses the promised possession date owes you interest for every month of the delay, and the RERA delayed possession interest in Bengaluru is a right you can actually enforce.

The short answer. If the developer fails to hand over your home by the date in the registered agreement, RERA Section 18 gives you two choices. You can withdraw and claim a full refund of everything you paid plus interest, or you can stay in the project and collect interest for each month of delay until you get possession. The prescribed rate is the State Bank of India marginal cost of lending rate plus 2 percent a year, applied to the total amount you have paid. The upside is a real, calculable claim. The trade-off is that enforcing it can take a RERA order and some patience. Quick fact: under Section 18, delay interest runs at SBI MCLR plus 2 percent on the total you have paid, for every month past the promised date.

This guide explains what Section 18 gives you, how the interest is calculated, whether to withdraw or continue, and how a Bengaluru buyer actually claims it.

What does RERA Section 18 give a buyer?

Section 18 turns a broken possession promise into a money claim. When a promoter fails to complete or hand over the property by the date stated in the agreement for sale, the buyer becomes entitled either to exit with a full refund and interest, or to remain and be paid interest for the delay. The choice belongs to the buyer, not the builder, and it is triggered simply by the missed date, not by proving bad faith.

The date that matters is the one written into your registered agreement, so that document is the anchor for any claim. A vague brochure timeline is not the test. If your agreement names a possession date and that date has passed without handover, Section 18 is already working in your favour, whether or not the builder acknowledges it.

How is the delay interest calculated?

The interest is not a token gesture, it is a defined rate on real money. The prescribed rate under the RERA rules is the State Bank of India marginal cost of lending rate plus 2 percent per annum, and it is applied to the total amount you have already paid the developer, for each month that possession is late. Because the SBI rate moves, the exact figure is recalculated over the delay period, but the formula is fixed and transparent. Interest equals the amount paid, multiplied by the annual rate, multiplied by the delayed months, divided by twelve.

On a large Bengaluru purchase this adds up quickly. Interest on most of a crore, at a rate in the region of high single digits, runs into lakhs over a year of delay. That is the point of the provision, it makes delay expensive for the builder and it partly compensates you for the rent and EMI you carry while you wait.

It also helps to see the interest as an accruing liability rather than a one time penalty. Every month the project stays late, another month of interest is added to what the builder owes you, so the claim grows on its own until handover. That changes the negotiating dynamic. A developer who is genuinely close to finishing has an incentive to complete quickly, while one who keeps slipping is quietly building a larger debt to you. For a buyer, the practical move is to record the running total periodically, so that whenever the matter is settled, whether by the builder or by an order, the figure is already documented and not something you have to reconstruct later.

Should you withdraw or continue?

This is the real decision, and it turns on whether you still want the home. Withdrawing suits a buyer who has lost faith or cannot carry the wait, and it returns your capital with interest. Continuing suits a buyer who still wants the flat and would rather be compensated for the delay than start the search again. The table lays out the two paths.

Neither choice requires you to forgive the delay that has already happened. The decision is about the future, keep the home or leave it, while the interest for the delay to date is due either way. Our guide to a K RERA refund in Bengaluru covers the withdraw route in detail.

Does taking possession waive your claim?

No, and this is the point most buyers get wrong. Accepting the keys does not cancel the interest that has already built up for the months the builder ran late. The two are separate, you can take possession of your home and still pursue the delay compensation that accrued before handover, within the applicable time limits. Builders sometimes imply that signing the possession letter closes the matter. It does not.

The practical guidance is to protect the claim in writing. When you take possession of a delayed home, record that you are doing so without giving up your Section 18 rights for the delay period, so there is no argument later that you waived them. A short, clear note at handover preserves a claim that can be worth lakhs.

How do you actually claim the interest in Bengaluru?

You start by asking, then you escalate. Put the claim to the developer in writing, with the possession date from your agreement, the amount paid, and the interest worked out at SBI MCLR plus 2 percent for the delay. Many claims are settled at this stage because the number is hard to argue with. If the builder refuses or stalls, you take the claim to the Karnataka RERA authority, which can order the developer to pay the interest or to refund you.

Keep the paperwork tight, because a documented claim is a strong claim. Your registered agreement fixes the date, your payment receipts fix the amount, and a simple calculation fixes the interest. Reading your possession terms early also helps, and our apartment possession checklist for Bengaluru shows what to confirm at handover so nothing undercuts your claim.

What should a delayed buyer do, step by step?

Work through this if your possession date has passed.

1. Find the exact possession date written in your registered agreement for sale.
2. Total up every amount you have paid the developer, with receipts.
3. Calculate the delay interest at SBI MCLR plus 2 percent for each month past the date.
4. Decide whether you want to withdraw for a refund or continue and claim interest.
5. Send the developer a written claim setting out the date, the amount and the interest.
6. If you take possession meanwhile, do so in writing without waiving your delay claim.
7. If the builder refuses, file with the Karnataka RERA authority for an order.

Even buyers in strong, well run projects should know this right, since delays can hit any development. If you are considering a launch such as Birla Evara, Section 18 is the protection that stands behind the possession date in your agreement, whatever the project.

What are the honest limits of this right?

The claim is strong on paper, but it is not instant cash. If the builder does not pay voluntarily, you go through the RERA authority, and while the process is far faster and cheaper than a civil court, it still takes time and effort. The interest rate also moves with the SBI benchmark, so the exact figure is not fixed in advance, only the formula is. And a refund is only as good as the developer's ability to pay, which is why the escrow and the developer's financial health still matter.

None of this weakens the core point. Section 18 converts a delay from a helpless wait into a quantified claim you can enforce. Anchor to the agreement date, keep your receipts, decide clearly between withdrawing and continuing, and preserve your rights in writing at possession. Do that, and a builder's delay becomes their liability rather than only your loss.

What interest can I claim for delayed possession under RERA?

Under RERA Section 18, you can claim interest at the State Bank of India marginal cost of lending rate plus 2 percent per year, applied to the total amount you have paid the developer, for every month possession is delayed past the date in your agreement. You may instead withdraw and claim a full refund with interest.

Can I take possession and still claim delay interest?

Yes. Accepting possession does not waive interest that accrued for the months the builder was late. The two are separate rights. Take possession in writing, stating that you do not give up your Section 18 claim for the delay period, and pursue the accrued interest within the applicable time limits.

How is RERA delay interest calculated?

The interest equals the total amount you paid, multiplied by the annual rate of SBI marginal cost of lending rate plus 2 percent, multiplied by the number of delayed months, divided by twelve. Because the SBI rate updates over time, the exact figure is recalculated across the delay period, but the formula stays fixed.

What if the builder refuses to pay delay interest?

Send a written claim first, setting out the possession date, the amount paid and the interest. If the developer refuses or stalls, file a complaint with the Karnataka RERA authority, which can order the builder to pay the interest or to refund you. Keep your agreement and payment receipts as proof of the claim.

Last updated 2026-07-10. PropNewz Team.