In my first job, a manager made my life miserable.
I felt helpless. My family felt helpless. One person was holding the strings to my life.
I thought to myself: Why can't I just quit right now and walk away?
The answer was obvious and brutal. Money.
It was my first job. I had no savings. And although my parents were supportive, I couldn't fall back on them anymore.
What does the internet tell you?
Every finance site gives you the same answer: keep 6 months of expenses. Some now say 9 to 12 months if you work in IT or at a startup, because layoffs and long job searches have become normal.
That number works if you only want to switch jobs.
But most people asking this question want something bigger: time to breathe and figure out what work they actually want to do. For that, 6 months runs out fast.
So let's skip the rule of thumb and use a formula.
What is a runway?
In my upcoming book, Quit 9to5, I keep coming back to one number. I call it your runway:
Runway (in months) = Savings / Monthly cash burn
Cash burn is what you actually spend in a month to live: rent, food, bills, insurance, EMIs, family commitments, everything.
If you have ₹6 lakhs saved and you spend ₹50,000 a month, your runway is 12 months. That's how long you can live without earning a single new rupee.
Your runway is the number of months you can say no to a job you hate.
Look at the formula again. It has two levers: savings on top, cash burn at the bottom.
Most people pull only the top one, waiting for the next hike or bonus. Meanwhile the bottom keeps growing, so the runway never moves.
How much did I save before quitting?
After that first manager, I did two things. I started saving aggressively, and I changed my job (and hence my manager).
I started by saving around 40% of my salary. Over time, I pushed it to 70-75%.
I didn't go on a foreign trip. I didn't buy the iPad I wanted. I didn't buy a vehicle of my own.
I worked in a 9to5 for about 3 years. By the end, I had saved enough for 3 to 4 years of freedom. That number is what gave me the courage to walk out.
So here's my honest answer to the title:
6 to 12 months of runway if you're planning a break before the next job.
2 to 3 years of runway if you want to quit and build work on your own terms.
The second number sounds scary. At ₹50,000 a month in expenses, it means ₹12 to 18 lakhs. That's a lot of money. It's also reachable within a few years of saving hard, and it shrinks the moment you touch the bottom of the fraction.
(Why is 2 to 3 years enough, and why don't you need to save for your whole life? I explained that in There Is No Such Thing as Retirement.)
Why does cutting expenses work twice as hard?
Every rupee you don't spend does two jobs at once.
It increases your savings. (Income - cash burn = savings)
It increases your runway. (Savings ÷ cash burn = runway)
Say you earn ₹1 lakh a month and spend ₹70,000. You save ₹30,000. In 2 years, you have ₹7.2 lakhs. At your lifestyle, that's about 10 months of runway.
Now bring spending down to ₹50,000. You save ₹50,000. In 2 years, you have ₹12 lakhs. At your new lifestyle, that's 24 months.
Same salary. Same 2 years. More than double the runway.
Do you see it?
This is why I never upgraded my lifestyle in proportion to my income. Even today, my monthly expenses sit around one-third of what I earn, and I save the rest the day it hits my account.
What is that new car really costing you?
Once you think in runway, every big purchase gets a second price tag.
Assume your monthly survival cost is ₹50,000. A ₹10 lakh car is then worth about 600 days of freedom. Six hundred mornings when you wouldn't have had to wake up and go to a job you dread.
That iPhone is worth around 60 days of freedom.
That foreign trip, around 90 days.
That Royal Enfield, around 150 days.
Before you pay, ask one question: do I want this more than those days?
Where does debt fit in?
Debt eats your runway from both ends.
An EMI is cash burn you can't cut. You can cook at home and skip the weekend trip, but the loan wants its money on the 5th of every month, whether you have a job or not.
I have never owned a credit card. I have zero debt today. And I believe that's one of the biggest reasons I could quit my job and build a career on my own terms.
When I want something big, I use what I call a reverse EMI. If I want a ₹90k phone in 6 months, I save ₹15k a month separately and buy it in one shot once the money is there. First earn, then spend.
If you're carrying loans right now, clearing them is part of building your runway. Close the smallest one first, then move that EMI amount into savings.
What should you sort out before you resign?
A few things your salary quietly paid for will now come out of your runway:
Health insurance. Your company cover usually ends with your job. Buy your own policy before you resign.
Family emergencies. Keep a separate buffer and leave it out of your runway calculation.
The book goes much deeper into how to plan the exit itself. The waitlist is open here.
So, what do you do this week?
Find your cash burn. Open your last 3 bank statements, add up what you actually spent, and take the monthly average.
Calculate your runway. Divide your liquid savings by that number. Write it down.
Pick your target. 6-12 months for a break. 24-36 months to build something of your own.
Pull both levers. Cut one expense that exists only because of your job. Set up an automatic saving on salary day, before you get a chance to spend it.
Recalculate every month. If the number goes up every month, you're on your way out.
When that first manager was making my life miserable, my runway was zero. Today it's more than 5 years.
Every rupee you save reduces the weight of salary in your decisions.
If money isn't the only reason you feel stuck, read Why Do People Stay in Jobs They Hate? next.
Thought exercise: Your company announces layoffs tomorrow, and your name is on the list. How many months could you live exactly as you do today? Calculate it tonight. If the answer scares you, you now know which lever to pull first.
How do you plan the full exit?
I've put everything I know into first-principles frameworks in my upcoming book, Quit 9to5: how to build your runway, become irreplaceable, and walk out of salaried work on your own terms.
If this post helped, you'll love the book. Click here to join the waitlist.