A buyer in north Bengaluru celebrated his home loan sanction letter as if the money were already in his account, then discovered that not a rupee would move until the builder reached the next construction stage, and that he would be paying the bank in the meantime anyway. He had confused two very different milestones. A sanction is a promise to lend, while a disbursement is the actual release of money, and for an under construction flat the gap between them shapes both his cash flow and his patience.

The short answer. A home loan sanction is the lender's approval of your loan, setting the amount, rate, and tenor, while a disbursement is the actual release of the money. For an under construction flat, the loan is usually disbursed in tranches tied to construction stages rather than as a lump sum, and until the full amount is released you typically pay pre-EMI, which is interest only on the money disbursed so far. The trade off is that a buyer of an under construction home carries interest during construction without yet owning a finished flat, so understanding the disbursement schedule is as important as celebrating the sanction.

What is the difference between sanction and disbursement?

A sanction is the lender approving your loan in principle, while a disbursement is the lender actually paying the money out. The sanction letter confirms that the bank is willing to lend you a specified amount at a specified interest rate and tenor, subject to conditions, and it is usually valid for a limited period. It is a genuine milestone, because it tells you how much you can borrow, but it is not money in hand. Disbursement is the step where the bank releases funds, either to the seller in a ready purchase or to the builder in stages for an under construction one. The distinction matters because a buyer can hold a sanction and still be far from having the purchase funded, so the two should never be treated as the same event. Plan around the disbursement, not just the sanction.

How does disbursement work for an under construction flat?

For an under construction flat, the loan is generally disbursed in tranches linked to the progress of construction rather than all at once. This is called tranche or construction linked disbursement, and it exists because the builder needs payment at stages as the building rises, and the lender does not want to release the full amount for a property that does not yet exist. So as the project reaches agreed milestones, the bank releases the corresponding portion of the loan, often against the builder's demand and confirmation of the stage. For a buyer, this means the loan is drawn down over months or years in step with the construction, and the timing of each tranche depends on the builder actually completing each stage. A stalled or slow project therefore affects not just your possession date but the rhythm of your loan. It is worth knowing that a sanction is usually valid only for a limited window, so if a project moves very slowly, your sanction can lapse before the loan is fully drawn, and you may need it revalidated, potentially at a different interest rate than you were first offered. This is one more reason a buyer of an under construction home should watch construction progress closely rather than treat the sanction as a permanent guarantee.

What is pre-EMI, and how is it different from full EMI?

Pre-EMI is an interest only payment on the amount disbursed so far, while a full EMI repays both principal and interest. While an under construction loan is still being disbursed in tranches, many borrowers pay pre-EMI, which covers only the interest on the money released to date and does not reduce the principal. Once the loan is fully disbursed, usually around possession, the full EMI begins, and that instalment includes both principal and interest so the loan actually starts reducing. The practical effect is that during construction you pay interest without building equity in the loan, which is a real cost of buying early in a project's life. Some buyers instead opt to start full EMIs earlier where the lender allows, to begin cutting the principal sooner. Either way, understanding whether you are on pre-EMI or full EMI tells you what your payment is actually doing. The choice has a real cost dimension: staying on pre-EMI keeps your monthly outgo lower during construction, which helps if you are also paying rent on your current home, but because the principal is not reducing, you do not make progress on the loan during that time. Weighing lower payments now against a longer effective repayment later is a decision worth making deliberately rather than by default.

When does your own contribution come in?

Your own contribution, the down payment, generally comes in before or alongside the bank's disbursement rather than after it. Lenders typically expect you to have put in your share of the cost before they release their portion, so in a construction linked purchase your own money often funds the earlier stages and the loan follows. This is why a buyer needs the down payment ready early, not at the end, and why proof of your contribution is part of the disbursement process. It also ties back to the loan to value ratio: the bank funds only its capped share, and the rest, plus the transaction charges it excludes, is your responsibility from the start. For an under construction purchase, planning the sequence of your contribution against the tranche schedule keeps the payments to the builder on time and the project on track.

What risks should a buyer watch in tranche disbursement?

The main risks are construction delays, a mismatch between the builder's demands and actual progress, and the interest you carry during a long build. Because tranches are tied to construction stages, a project that runs late stretches out your disbursement and your pre-EMI period, so you pay interest for longer without moving in. A builder demanding payment for a stage that is not genuinely complete is another risk, which is why lenders and buyers should confirm the stage before a tranche is released rather than pay on a demand letter alone. There is also the plain cost of carrying interest on an asset you cannot yet use or let out. None of this makes an under construction purchase wrong, but it does mean a buyer should track the disbursement against real progress, keep the down payment and pre-EMI budgeted, and treat a slow project as a financial issue, not just a scheduling one.

Sanction, disbursement, and EMI at a glance

The stages of a home loan for an under construction flat line up like this.

Reading down the table, the cost to a buyer builds gradually from nothing at sanction to full EMIs after possession, with an interest carrying period in between.

What should a buyer check about disbursement?

A buyer should understand the disbursement schedule, the pre-EMI cost, and the link to construction progress before committing. Work through these checks.

1. Confirm your sanction letter's amount, rate, tenor, and how long the sanction stays valid.
2. Ask how disbursement is structured, whether in tranches tied to construction stages.
3. Understand whether you will pay pre-EMI or full EMI during construction, and the cost of each.
4. Plan your own contribution to come in early, in step with the tranche schedule.
5. Check that each tranche is released against verified stage completion, not just a builder demand.
6. Budget for the interest you will carry through a potentially long construction period.
7. Track the project's real progress, since delays stretch both possession and your loan cost.

Doing this means the gap between a happy sanction and a fully funded, occupied home is one you have planned for, rather than one that catches you mid project.

Frequently asked questions

What is the difference between loan sanction and disbursement?

A sanction is the lender's approval of your loan, fixing the amount, rate, and tenor, while a disbursement is the actual release of the money. You can hold a sanction and still have no funds released. For a ready home the loan is disbursed to the seller, and for an under construction flat it is usually released in stages to the builder.

How is a home loan disbursed for an under construction flat?

It is generally disbursed in tranches linked to construction progress, rather than as a lump sum. As the project reaches agreed stages, the lender releases the corresponding portion of the loan, often against the builder's demand and confirmation of the stage. This means the loan is drawn down gradually over the course of the construction.

What is pre-EMI on a home loan?

Pre-EMI is an interest only payment on the amount disbursed so far, common while an under construction loan is still being released in tranches. It does not reduce the principal. Once the loan is fully disbursed, usually around possession, the full EMI begins, which includes both principal and interest so the loan starts reducing.

When does the full EMI start on an under construction home?

The full EMI usually starts once the loan is fully disbursed, which for an under construction flat is typically around possession after the final tranche is released. Until then, many borrowers pay pre-EMI on the disbursed amount. Some lenders allow you to begin full EMIs earlier to start reducing the principal sooner.

Plan the cash side with our guide to loan to value and your down payment, and weigh the choice itself with our comparison of a ready to move versus under construction flat. If you are considering a project still being built, our overview of Assetz Twin Lake City in Horamavu shows what to check. Home loan conduct is regulated by the Reserve Bank of India.

Last updated 2026-07-13. PropNewz Team.