House Down Payment Planner

Plan for your dream house down payment. Model property value inflation, custom down payment percentage, and investment SIP rules.

Parameters
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Calculated Results
Required Down Payment-
Required Monthly SIP-
Required Lump Sum-
Compounding
Inflation
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Visual Projection
Invested
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Real Value
Yearly Breakdowns
YearInflated House CostTarget Down PaymentSavingsGainsAccumulated
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How Much Down Payment Will Your Home Need?

Buying a home in India starts with the down payment, because RBI rules cap how much a bank can lend against a property: loans of up to ₹30 lakh can cover up to 90% of the value, loans above ₹30 lakh and up to ₹75 lakh up to 80%, and loans above ₹75 lakh up to 75%. Everything above that limit (plus stamp duty and registration, which typically add 5-7% of the property value) has to come from your own funds.

This planner inflates the property price to your purchase year using a 7% default house-price assumption, then computes the down payment you must accumulate and both routes to build it. On the defaults, an ₹80 lakh home bought 5 years from now with a 20% down payment, the property costs about ₹1.12 crore, so the down payment target is roughly ₹22.4 lakh: about ₹27,700 a month through a SIP at a 12% expected CAGR, or roughly ₹12.7 lakh as a lump sum today.

Keep the other upfront costs in view: stamp duty and registration are paid from your own pocket and cannot be financed by the home loan. Once you buy, the EMI takes over. Size it with the EMI calculator and see how extra payments cut interest and tenure in the loan prepayment calculator. And because both house prices and general inflation keep pushing the target up, a 3-5 year down payment fund is usually built with a measured mix of equity and safer instruments rather than a savings account alone.

Popular House Down Payment Calculations

Click on any of the popular search scenarios below to load the calculator with pre-configured values:

Frequently Asked Questions

What is the minimum down payment for a home loan in India?
It depends on the loan size, because RBI's loan-to-value caps set the floor. Loans of up to ₹30 lakh can be financed up to 90% of the property value, so the minimum down payment is 10%; loans above ₹30 lakh and up to ₹75 lakh need at least 20% down, and loans above ₹75 lakh at least 25%. Lenders often ask for more, and stamp duty and registration sit outside these limits entirely.
How much stamp duty and registration will I pay?
Stamp duty is a state subject, so the rate varies, but it typically works out to 5-7% of the property value, with registration charges adding roughly another 1% in many states. These are paid upfront from your own funds and cannot be added to the home loan. On the default ₹1.12 crore purchase in this planner, stamp duty and registration would add an estimated ₹6-9 lakh to the cash you need.
Is it better to make a 10% or 20% down payment?
A bigger down payment means a smaller loan, a lower EMI and less total interest, while a smaller down payment keeps more cash in hand at the cost of a larger monthly outgo. On a ₹30 lakh purchase, moving from 10% down (₹3 lakh) to 20% (₹6 lakh) shrinks the loan from ₹27 lakh to ₹24 lakh; at 8.5% over 20 years the EMI falls from about ₹23,400 to about ₹20,800. A 10% down payment is possible only while the loan stays within RBI's 90% band, and it leaves little margin for emergencies.
How much should I save each month for a down payment?
It depends on the price, the horizon and the return assumed. In the default scenario (an ₹80 lakh home, 20% down, 5 years away) you need about ₹22.4 lakh, which takes roughly ₹27,700 a month at a 12% CAGR. Compressing the same goal into 3 years lowers the target to about ₹19.6 lakh but raises the monthly saving to around ₹45,500, because there is far less time for compounding to work.

Formula & Mathematical Approach

Estimates the required down payment for a future home purchase and calculates the monthly savings rate.

Future House Cost=Current Cost×(1+Property Inflation100)Years\text{Future House Cost} = \text{Current Cost} \times \left(1 + \frac{\text{Property Inflation}}{100}\right)^{\text{Years}}
Target Down Payment=Future House Cost×Down Payment %100\text{Target Down Payment} = \text{Future House Cost} \times \frac{\text{Down Payment \%}}{100}
Required Monthly SIP=Target Down Payment[(1+i)Months−1i]×(1+i)\text{Required Monthly SIP} = \frac{\text{Target Down Payment}}{\left[ \frac{(1 + i)^{\text{Months}} - 1}{i} \right] \times (1 + i)}
Show Plain Text / Excel Formula
Future House Cost = Current Cost * (1 + Property Inflation / 100) ^ Years
Target Down Payment = Future House Cost * (Down Payment % / 100)
Required SIP = Target Down Payment / (SIP Compounding Factor)

Key Assumptions

  • Property values rise steadily with property-specific inflation.
  • Down payment percentage remains constant.
  • Level monthly savings are made.