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How do you get from goal to SIP amount: Part 1

Walk-through: Get the SIP amount for a single payment goal

How do you get from goal to SIP amount: Part 1


Posted on 04 Jun 2021
Author: Sayan Sircar
6 mins read

Walk-through: Get the SIP amount for a single payment goal

How do you get from goal to SIP amount

📚 Topics covered:

Asset allocation and target return for a goal

We have already covered

In this example, we will consider a single payment goal like a foreign vacation, buying a car, kid’s marriage or for the down-payment of a house.

Taking the example of a house down-payment as a goal, let us construct this example:

  • Asset allocation: equity = 30%, debt = 70% « comes from the risk profile of the goal
  • Horizon (H): 10 years « the house will be bought after 10 years
  • Cost today (C): 20 lakhs « the down-payment is for 20 lakhs if bought today
  • Inflation (I): 5% « the house price is expected to rise at this rate
  • Lump-sum available (L): 3 lakhs « money available for investment today
  • Investment return (R): 4.63%/year « the average return over the next 10 years [we will cover getting to this number in a future post]
  • SIP amount will be increased by 10% every year which keeps the starting amount for the goal lower and let it increase with time
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Find the SIP amount for a goal

Future Value = Current Value * (1 + Inflation) ^ TIme_to_goal

When the house is actually bought, due to 5% inflation over 10 years the down-payment will be higher. Let us call this future value (F)

F = C * (1+I)^H = 20 * (1+0.5)^10 = 32.58 lakhs

So we need to invest monthly an amount of ₹ 12,089 (as per the calculator linked below) in equity and debt. Based on the return expectation of each of the funds chosen and the asset allocation, you can arrive at a return expectation for the investments as per this post: How much returns should you estimate for your goals?.

This is the SIP amount assuming constant investment every year. Typically people increase their investments every year by 10% and the same is assumed here. The starting value of L i.e. 3 lakhs should be invested via this method as per asset allocation (E=30%, Debt=70%) as per the choice of equity and debt funds.

Calculation of SIP amount for multiple goals

Once this is done, the following will be completed:

  • equity fund allocation of 30% of 3 lakhs = 0.9 lakhs in equity
  • debt fund allocation of 70% of 3 lakhs = 2.1 lakhs in debt
  • SIP of 30% of ₹ 12,089 = ₹ 3,627 in equity fund for 12 months
  • SIP of 70% of ₹ 12,089 = ₹ 8,463 in debt fund for 12 months

These calculations are explained in this Google Sheets workbook which has a few worked-out examples for more goals.

After one year of running the SIP

The following needs to be done in this order:

  • find the new corpus (C) which is the sum of the current value equity and debt fund values
  • review the goal parameters (new horizon is 1 year less, review the current cost of the house to adjust the down payment etc.)
  • check the new asset allocation
  • re-balance between the equity and debt fund values

Repeat the steps in the “Find SIP amount for a goal” section above with these new values. See this detailed post for the process

This article is part of our Series on “How to purchase a home”:

Does this process work in real life?

Single case of a 15-year goal

We show this example of a goal for which investment was started in 2007. Every year, the invested amount was increased by 10%, and the asset allocation was made more and more conservative over time. We can see how the equity allocation was reduced to zero as the goal moved closer.

How goal based investing has performed in the past

The key learning here is that the variability between the actual and theoretical portfolios slowly came close to zero over time.

For all maturities

How goal based investing has performed in the past for all maturities

We see that except for goals maturing before 2008, in all other cases, the return has been higher than the theoretical return like this:

Single-goal success ratio

But there has not been a single case where the ending value has been lower than the starting value:

How goal based investing has performed in the past for all maturities

Read more: Goal-based investing: does it work in India?

How to implement this process in practice?

We have covered the practical aspects of investing for a goal like this in detail here: How to invest for a single goal using Target Date Funds in India?.

A note on having the pre-requisites in place

At all times ensure that you have the following in place

All posts in this series

Please see below:

What's next? You can join our WhatsApp community

You can stay updated on our latest content and learn about our webinars. Our community is fully private so that no one, other than the admin, can see your name or number. Also, we will not spam you.

Discover an article from the archives

Worked out case studies for goal-based investing

Previous and next articles:

<p>The purpose of investing is to fulfill a life goal: set that first</p>
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Set a goal before looking for what to invest in

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Published: 3 June 2021

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<p>Walk-through: Get SIP amount for a goal with multiple payments</p>
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How do you get from goal to SIP amount: Part 2

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Published: 5 June 2021

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Topics you will like:

Asset Allocation (19) Basics (8) Behaviour (10) Budgeting (10) Calculator (15) Case Study (3) Children (11) Choosing Investments (32) FAQ (4) FIRE (11) Gold (6) Health Insurance (4) House Purchase (14) Insurance (14) International Investing (8) Life Stages (2) Loans (9) Market Movements (10) Mutual Funds (25) NPS (5) NRI (5) News (6) Pension (6) Portfolio Construction (42) Portfolio Review (24) Real Estate (4) Retirement (33) Review (11) Risk (6) Safe Withdrawal Rate (5) Set Goals (26) Step by step (9) Tax (22)

Next steps:

1. Email me with any questions.

2. Use our goal-based investing template to prepare a financial plan for yourself
OR
use this quick and fast online calculator to find out the SIP amount and asset allocation for your goals.

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Disclaimer: Content on this site is for educational purpose only and is not financial advice. Nothing on this site should be construed as an offer or recommendation to buy/sell any financial product or service. Please consult a registered investment advisor before making any investments.

This post titled How do you get from goal to SIP amount: Part 1 first appeared on 04 Jun 2021 at https://arthgyaan.com


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