Leave corporate job solopreneur-style only when five gates are green: money, proof, people, paper and identity. A decision framework with a go, wait or stay.
Leave corporate job solopreneur-style only when five gates are green: money, proof, people, paper and identity. Four out of five is not a go. It is a date to check again. Quitting is not the goal. Choosing is.
Most advice on this question is a mood: follow your heart, or be responsible. This is a checklist. You will end with one of three answers (go, not yet, or stay), each of which is a legitimate decision. The maths behind the money gate already has its own guide, so this one links to it instead of repeating it.
Leave corporate job solopreneur: the five gates
A decision to quit your job and start a business fails in one of five places. Check them in this order, because the cheap ones come first.
| Gate | The question | Green looks like | Red looks like |
|---|---|---|---|
| 1. Money | Can you survive a bad quarter? | Six to twelve months of living expenses in cash you do not touch | Planning to spend the cushion as operating money |
| 2. Proof | Does the business pay, repeatedly? | Monthly revenue near your replacement number, growing consistently for at least three months | One good month and a lot of hope |
| 3. People | Is your partner part of the decision? | Several conversations over months, and a date you chose together | An announcement the week you resign |
| 4. Paper | What do you lose and what can bite? | You have read your contract and priced the benefits you give up | "I assume it's fine" |
| 5. Identity | Would you stay for the title? | You can say who you are without your employer's name | The comfort of being known is doing the deciding |
Gate 1: money
The cushion is insurance, not working capital. The book is blunt: founders who treat it as available cash burn through it in four months and end up back in corporate within a year. Build it separately from the business, and work out your number with What's Your Quit Number? The Math Before You Resign.
Gate 2: proof
Revenue that arrived once is an event. Revenue that arrives every month is a business. The book asks for a consistent growth trajectory over at least three months before you resign, because the trend is what survives a bad week.
Gate 3: people
A partner who feels ambushed carries resentment into the year you most need them. The book describes four conversations: the trajectory, the timing, the decision and the check-in a month after you quit. Read Talk to Your Spouse Before Quitting: The 4 Conversations before you book the first one.
Gate 4: paper
This gate is dull, which is why people skip it. Read your employment contract for clauses on side work. Read Can Your Employer Claim Your Side Project? and, if the answer is unclear, ask a lawyer in your country. Then list what the employer pays for that you will have to buy yourself: health cover, pension contributions, paid leave. Put a euro figure next to each one. Start with Solopreneur Health Insurance. This post gives no legal or tax advice, and neither should a blog.
Gate 5: identity
The gate nobody puts in a spreadsheet. If your title is doing most of the work of making you feel like somebody, you will find reasons to stay that sound like prudence. We covered that trap in The Identity Prison: When Your Job Title Becomes You.
Side income replace job: how to read the replacement test
The question behind most searches for "can side income replace my job" is really two questions. Is the income big enough, and will it last?
Big enough: the book's version is monthly recurring revenue at your post-tax salary multiplied by 1.2, so the business covers the difference between revenue and take-home. Last long enough: a growth trend, not a single month. A partner's income extends your runway, but it does not lower the threshold. A business that needs a partner's salary to survive is, in the book's words, a hobby drawing from a shared bank account.
If you want to replace your salary with a side business, you also need the business to exist. Most people reading this are at gate 2 with nothing to measure. For them the next step is not a resignation date. It is Build a Business While Employed: The 5-Phase Sequence. The risk comparison in the book is worth remembering: build while employed and a failed attempt costs about a thousand euros and three months of television. Quit first and a failure costs a lot more.
When to quit your day job: go, not yet, or stay
Run the five gates and you land in one of three places.
- Go. All five are green. Pick the date, tell the people who need to hear it first and stop reopening the question.
- Not yet. One or two are red. That is information, not failure. Write down which gate, what turns it green and the date you will check again. A "not yet" with a date is a plan. A "not yet" without one is where years go.
- Stay, on purpose. The book describes a portfolio path where you keep the job and build several small things, so that the choice to leave is always yours. In its example, a software engineer we'll call James reaches about thirty-five hundred euros a month in side income across four small products on roughly eight hours a week, and does not quit because he likes his job. Having the option is the win.
For the four signals that suggest it is time, read When to Quit Your Corporate Job: 4 Signals. Signals tell you how you feel. Gates tell you whether you can afford to act on it.
Corporate to entrepreneur: the two ways to get this wrong
The book gives two composite stories, and they fail in opposite directions.
Too early. A product manager we'll call Tom resigned after a bad quarter with two months of savings and an unvalidated idea. By month four he was at four hundred euros in MRR and his savings were running out. He took freelance contracts of thirty hours a week to extend the runway, which killed the time he needed for the product. In month eight he was back behind a desk. His idea was not the problem. He quit before the maths told him to, and desperation ate the hours.
Too late. A designer we'll call Anna had a productized service earning fourteen thousand euros a month against an eight-thousand-euro salary, with ninety thousand euros in savings. By every number she could have left a year earlier. She gave herself reasons ("one more buffer client") but the real reason was fear of being nobody-special outside the agency. She worked fifty hours for the agency and twenty-five for her clients until her partner told her she would not make it through another year like that.
Tom failed gates 1 and 2. Anna passed gates 1 to 4 and failed 5. Both are avoidable, but only if you know which one you are drifting towards. I built my own platform over eleven months at 45 while still employed. The job did not pay for the product. It paid for the time to get it right.
How to leave once the gates are green
Resigning is mechanically simple and emotionally heavy. The book's rules:
- Give normal notice. Two to four weeks for most roles, longer for senior ones. The people you leave on good terms are the people who will refer customers to you later.
- Say it in person. Eye contact, calm voice, a last day, and an offer to make the transition smooth. It takes about three minutes.
- Expect a counter-offer. About a third of people who resign get one. It is the company admitting you were undervalued only after you forced the issue. Decline politely. Never Take the Counter-Offer explains why.
- Hand off cleanly. Document your processes. The reputation you leave behind is the one that gets repeated six months from now.
- Design week one before it designs you. The first Monday has no structure, and people either overwork or coast. Set a schedule with deep-work blocks, a real lunch and a stop time, and write it down.
Frequently asked questions
Should I quit my job to become a solopreneur?
Not before the five gates are green. Quitting is a good decision when the business already pays, you have a cushion you will not touch, your partner is in on it and you have read your contract. Without those, you are not quitting to build a business. You are quitting to find out whether you can.
Can I become a solopreneur while still employed?
Yes, and the book argues it is the safer route. Your salary pays the mortgage, the side project does not have to work in month one and you can validate slowly. Check your contract for side-work clauses first, and keep the work on your own time and equipment.
How long does it take to replace a corporate salary with a side business?
There is no honest universal answer. The book's illustrative timeline has side income at three to five thousand euros a month by month nine and a decision point at month nine on whether to quit, but those are targets for a plan, not predictions. Your number depends on your salary and how fast you get paying customers.
What do I lose when I leave a corporate job?
The salary, and often the benefits around it: health cover, pension contributions and paid leave, depending on your country and employer. Put a price on each before you decide. Read Solopreneur Health Insurance and ask a local adviser, because the rules differ by country.
What if I am not sure how stuck I am?
Measure it before you decide. Take the Corporate Suffocation Index, then come back to gate 1 with a real answer.