How much money should I have before starting a business?

A common rule of thumb from founders is 6 to 12 months of personal living expenses on top of the startup costs themselves. First-year founders frequently earn less than half their previous salary, and many take no salary at all for months. If your business needs to pay your rent from month one, you are forcing it to grow faster than most businesses can.

Should I quit my job first or start on the side?

Starting on the side is the lower-risk default and works well for services, content and software. Research on entrepreneurs found that those who kept their day job while starting were significantly less likely to fail, likely because they could be patient. Quit first only if the business demands full-time hours by nature or you have a long runway saved.

What do most new business owners underestimate?

Selling. Most first-time founders budget for building the product or service and underbudget for finding customers, which usually takes more time and money than the build. The second blind spot is administrative drag: invoicing, taxes, insurance and compliance routinely eat 5 to 10 hours a week that used to be billable or buildable time.

How likely is my business to fail?

Around 20 percent of new businesses close within the first year and roughly half are gone by year five, but those averages hide big differences. Survival is much higher for businesses with prior industry experience, existing customers lined up, and low fixed costs. Failure also rarely means ruin: most founders return to employment with new skills and a stronger network.

Business

Should I start my own business?

Is starting a business the right move for me, or am I better off staying employed?

Roughly half of new businesses survive five years, yet the founders who make it rarely regret trying. The decision comes down to your runway, your tolerance for income swings, and whether the idea pulls you harder than the steady paycheck holds you.

Short answer

Start the business if you have 6-12 months of living expenses saved beyond startup costs, ideally some customers or industry experience lined up, and the idea pulls at you harder than the steady paycheck holds you. Stay employed — or build on the side first — if your savings would not survive a year of sharply reduced income, or if your motivation is mainly escaping a bad job rather than serving a specific customer. Runway is the strongest predictor here: with it, a slow first year is a planned phase; without it, the same year is a crisis.

Template balance

Leaning no

The cons have the edge, but it's not a landslide.

44%

For

56%

Against

Strongest pro

Full control over what I build, who I work with and how I spend my days

Biggest risk

Income cliff: first-year founders typically earn less than half their old salary, often zero

How the verdict works

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Pros

Cons

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Check before you decide

Count your runway: how many months of personal expenses you can cover with no income, after startup costs.
Talk to at least five potential customers and ask what they would actually pay for.
Price the benefits you lose: health insurance, retirement contributions, paid leave.
Test whether the business can start on the side before you resign.
List the fixed monthly costs of the business and how low you can keep them in year one.
Agree with your partner or family how long you will try before reassessing.

Frequently asked questions

How much money should I have before starting a business?: A common rule of thumb from founders is 6 to 12 months of personal living expenses on top of the startup costs themselves. First-year founders frequently earn less than half their previous salary, and many take no salary at all for months. If your business needs to pay your rent from month one, you are forcing it to grow faster than most businesses can.
Should I quit my job first or start on the side?: Starting on the side is the lower-risk default and works well for services, content and software. Research on entrepreneurs found that those who kept their day job while starting were significantly less likely to fail, likely because they could be patient. Quit first only if the business demands full-time hours by nature or you have a long runway saved.
What do most new business owners underestimate?: Selling. Most first-time founders budget for building the product or service and underbudget for finding customers, which usually takes more time and money than the build. The second blind spot is administrative drag: invoicing, taxes, insurance and compliance routinely eat 5 to 10 hours a week that used to be billable or buildable time.
How likely is my business to fail?: Around 20 percent of new businesses close within the first year and roughly half are gone by year five, but those averages hide big differences. Survival is much higher for businesses with prior industry experience, existing customers lined up, and low fixed costs. Failure also rarely means ruin: most founders return to employment with new skills and a stronger network.