Can I afford to quit my job for my startup?
You can afford to go full-time when your project either already covers your living costs, or your savings buy you enough months to get it there before the money runs out. The two numbers that decide it: how many months your cash lasts (your runway), and whether the business covers its own costs (break-even).
The go/no-go check
On your current trajectory, the project reaches break-even before your savings hit zero.
Default alive: break-even month before zero-cash month
This is the real green light — it means you survive the jump without needing anyone else’s money.
The project’s revenue is genuinely growing, not flat.
A real, repeated upward trend — not one lucky month
Flat revenue plus savings is just a countdown. Growth is what closes the gap between now and covering yourself.
You have a savings buffer you can actually live on while that gap closes.
Enough months of living costs to reach break-even — your number, not a generic one
The buffer buys time for growth to work. Too thin, and one slow quarter forces you back to a job.
It comes down to two questions
First: if you stop drawing a salary, how many months can you live on your savings plus whatever the project earns? Second: is the project on track to pay for itself (and you) before that runs out? If yes to both, you have a real runway to make the jump. If not, you know exactly how much more revenue or savings you need first.
Quitting is a money decision dressed up as a courage decision. The courage part is easier once the money part is a number, not a feeling.
The words: runway, break-even, default alive
The months your money lasts = your runway. The point where the business covers its costs = break-even. If you hit break-even before your runway ends, you are "default alive" — you survive without needing more money. That is the green light most founders are actually looking for.
A common rule of thumb is enough savings for 12-18 months, plus a project already showing real, growing revenue, before you leave a stable income — but treat that as a starting anchor, not your target. Your real number depends on your own living costs and what the project already earns; the calculator turns it into an exact figure.
A worked example
Say your living costs are $3,500/month and you have $42,000 saved — that is 12 months of pure runway with zero revenue. But the project already earns $1,200/month and is growing, so your real burn is $2,300/month and your savings stretch to about 18 months.
Now the only question that matters: is the project on track to reach $3,500/month — covering you fully — inside those 18 months? If yes, you are default alive the day you quit. If it flatlines at $1,200, those 18 months are a deadline to change the trajectory, not a reason to hand in your notice today.
When the numbers say “not yet”
There are two ways founders get this wrong. Quitting too early: the savings math works for six months, revenue is flat, and you have quietly handed yourself a six-month countdown to hit a number you have no plan for. Never quitting: the numbers cleared months ago but the feeling never does, so you burn out running two jobs at once.
The numbers do not make the decision for you — they tell you which mistake you are closer to. If they say “not yet”, the move is not to jump on hope. It is to grow revenue or extend savings until runway and break-even line up, then go.
Check your numbers free
Our free runway calculator and viability score let you plug in your cash, savings burn and the project’s revenue to see your runway, your break-even month, and whether you are default alive — before you hand in your notice.
If your product is one-time-priced rather than a subscription, the Quit Number calculator answers the other half directly: how many sales a month it takes to replace the income you would be walking away from.
FAQ
How much revenue should my side project make before I quit?
Enough that, combined with your savings runway, the project reaches break-even before the money runs out. There is no universal number — it depends on your living costs and savings. The honest answer is your own projection, not a generic figure.
How many months of savings should I have before going full-time?
A common guideline is 12-18 months of living costs, ideally with a project already earning and growing — but treat that as a rough anchor, not your target. Your own number depends on your living costs and current revenue; plug them in and the calculator gives you the exact months. The more your project covers, the less savings runway you need.
Related guides
Related tools
- Runway & Burn Calculator — How long until I run out of cash? Your zero-cash date and break-even month.
- When Can I Pay Myself? — When can my startup afford to pay me a salary — from its own profit?
- Quit Number Calculator — How many sales a month to replace your income and go full-time — for one-time-priced apps.
- See all: Cash & runway
Related benchmarks
Check your own numbers.
Startkeel tells you in minutes whether your SaaS holds up.
Last updated: June 25, 2026. For information only — not financial advice.