How to Calculate Your Retirement Corpus in 2026

Added: 2026-05-22

[00:00:02]Most people who are close to retirement usually ask one question first. How much do I need to retire? Some people hear that 2 cr is enough. Some people hear that 5 cr is enough. Some people are told that they need 25 times their annual expenses. And some people use the 4% withdrawal rule. But the problem is none of these numbers may be accurate for your situation because your retirement corpus depends on many personal assumptions. It depends on how much monthly income you need after retirement. It depends on your current age, your retirement age, your life expectancy, your inflation assumption, your current retirement savings, and the return your money can generate before and after retirement. And this is where many people make a mistake. They try to find one magic retirement number without understanding the assumptions behind that number. I'm Nishant and I help Indians make better retirement decisions. On this channel, we talk about retirement planning, income withdrawal strategies and real life case studies for those who are close to retirement or already retired. In today's video, I'll show you how retirement corpus is actually calculated. We will take a simple example of someone who wants 1 lak rupees per month after retirement and then we will use a retirement calculator to understand how much corpus may be required. While going through this calculation I want you to focus less on the final number and more on the logic behind the number because if you understand the logic you will understand why two people with same income requirement may still need different retirement corpuses. So let us start with the calculator. So let's take an example of Mr. Joosi. Mr. Jooshi is currently 55 years old and Mr. Jooshi is looking to retire at the age of 58 which will be in 2029 3 years from now. After retirement, Mr. Jooshi plans to withdraw a monthly income of 1 lak rupees per month. Now in order to get 1 lak rupees per month inflation adjusted, Mr. Johooi has to accumulate around 2.9 to 3 crores when he retires. So if you look at the assumptions the first key assumption is what is the income expectation after retirement and today's terms. So we are looking at a 1 lak rupees per month income after retirement. Now 1 lakh today is 12 lakh rupees annually. So if you look at in 2029 to have that same lifestyle of 1 lak rupees per month Mr. Jooshi would need somewhere around 14.2 lak per month assuming inflation which translates to somewhere around 1.2 2 lakh rupees a month and every year the income would be increased in line with the inflation. Now the second key assumption here would be the life expectancy. So here we are planning for a life expectancy of around 90 years.

[00:02:56]Another critical aspect is the asset allocation assumption. So what we are saying is after retirement we would want the accumulated corpus to be split in a way that 70% is towards equity and around 30% is in debt. The next key assumption is inflation. How much inflation do we assume? So the standard inflation rate that we assume a general inflation rate in India is around 6%. So we are planning for an inflation of 6%.

[00:03:25]Next is what is the returns that we are looking at from the investments that we make. So from the debt investments which constitutes your fixed deposits, debt mutual funds we are looking at a post tax return of around 4%. So today a typical fixed deposit will give you somewhere around 6 to 6 and 1/2%. But considering that the interest rates will drop your expectation from a fixed deposit or a debt mutual funds in the future would be somewhere around 5%. So the post tax returns would be somewhere around 4%. We always go for conservative assumptions when it comes to taking the return expectations from equity asset class. We would expect somewhere around 12% is the kind of returns that we would be able to generate. Now taking into factor all these assumptions in order to get a 1 lak rupee which is 12 lakh rupees annually inflation adjusted in this way where your withdrawals increase by 6% every year. We are looking at a corpus requirement of around 2.9 crores and this is how I calculate retirement corpus as a financial adviser. Now whatever corpus that we've looked at the 2.9 cr this is with respect to the assumptions that we spoke about the retirement age life expectancy monthly expectation of income. Now these numbers can change based on the assumptions. Do you want to plan for a life expectancy of 85 or 100? Do you want to plan for a monthly income of 1.25? 25 lakhs or 2 lakh rupees a month or you want to keep the asset allocation very conservative.

[00:04:57]Now in this case let's say if you are someone who absolutely does not like taking risks and want to park everything into either a debt mutual fund or fixed deposits then your postretirement asset allocation would become 100% into debt.

[00:05:11]Now if I do that the requirement shoots up to 6 1/2 crores. So now you understood how the retirement corpus should be calculated. It should not come from a thumb rule or from what worked for your friend or a colleague or your neighbor. Your retirement number should come from your own income need, your retirement age, your inflation assumption, your life expectancy, existing investments, future savings, and the return your portfolio can realistically generate before and after your retirement. And as you saw in the calculator, even a small change in the assumptions can change the final corpus significantly. If you retire early, need a higher monthly income, assume higher inflation, live longer, or choose a more conservative portfolio after retirement, the required corpus can go up meaningfully. So before deciding whether you are ready to retire, first check whether your retirement number has been calculated properly. If you're close to retirement or already have retired and want help understanding whether your current corpus can support your retirement income needs, you can reach out to our team. And if you found this useful, subscribe to the channel. We will keep discussing retirement planning, withdrawal strategies, and real life retirement case studies in a simple and structured way. To get retirement updates, do join my WhatsApp community for which the link is in the description. and I'll see you in the next