Quitting Your Permanent Job

The moment itself is almost always mundane. A Tuesday evening, an office already empty, an email to HR. What precedes it rarely is: months of doubting, calculating on the train, conversations with a partner who "supports it, but still". Every year tens of thousands of Belgians take that step (the RSVZ counted a record 129,414 starters in 2025) and for a considerable share of them it means trading an employment contract for self-employed status.

Entrepreneurial literature likes to romanticise that moment as "the leap". That is a misleading metaphor. You leap in one motion; a good transition to self-employment is more like a controlled descent, with ropes you secured in advance. Four of those ropes deserve honest analysis: your cash flow, your buffer, your risk profile and your head.

Rope one: understand what disappears

An employee structurally underestimates how much security sits in a single payslip. Not only the net salary, but also holiday pay, the year-end bonus, employer contributions to your pension, guaranteed salary during illness, occupational accident insurance, often a group insurance, hospitalisation cover and meal vouchers. Anyone calculating the transition therefore should not replace their net salary but their total package, and add on top, as a self-employed person, the insurance the social status does not cover or covers less well: guaranteed income during incapacity, a supplementary pension (VAPZ), possibly revenue insurance.

Important to know: those who resign of their own accord are in principle not entitled to unemployment benefit, and self-employed social contributions (in main occupation roughly 20.5 per cent on net taxable income, with quarterly minimums due even when you are earning nothing) start running immediately. The transition therefore has a built-in cost start before the first invoice is paid.

Rope two: the buffer, expressed in months

The classic rule of thumb, six months of fixed costs set aside, is a minimum, not a target. The right measure is personal: add your unavoidable private expenses (rent or mortgage, energy, family, insurance) to the fixed costs of your business in start-up, and divide your savings by that monthly figure. The result is your oxygen supply in months. Anyone below six is jumping too early; anyone above twelve buys mental calm, and that calm is not soft: research into decision-making under scarcity (including the work of Mullainathan and Shafir) shows that financial stress literally narrows thinking capacity. An entrepreneur who thinks about the rent every week negotiates worse, prices too low and says yes to the wrong clients.

Do not forget the timing of money flows in that calculation either. Invoices at thirty or sixty days, clients who pay late, VAT remittances and advance tax payments: the difference between profit on paper and money in the account is precisely where starting self-employed people most often run into trouble.

Rope three: risk analysis instead of courage

Treat your transition the way a bank would treat your credit file. What is your evidence that demand exists: do you already have paying clients, letters of intent, a filled pipeline, or only encouraging reactions? What happens in the worst realistic scenario, and is it survivable? What dependencies do you have (one big client, one supplier, your own health) and how do you cover them? And crucially: what is your return option, meaning how quickly would you, with your profile, find a job again if it does not work out? For a sought-after IT profile the downside risk is objectively smaller than for someone in a shrinking sector; that asymmetry may legitimately shape your decision.

One middle path deserves more attention than it gets: the phased transition. Starting as a side business alongside a (possibly reduced) job, with a career break or unpaid leave as a bridge, lets you prove demand with real money rather than with hope. It is no coincidence that Flanders counts hundreds of thousands of part-time self-employed people; for many it is the test phase that makes the later full-time leap effectively far less risky. Those coming from unemployment can use the "springboard to self-employment" scheme to combine a secondary activity with retained benefits for twelve months.

Rope four: your head and the home front

Mental preparation is not a side issue. The first months of self-employment combine three stressors that rarely coincide in employment: income uncertainty, loss of identity (you are suddenly "nobody from a company") and isolation. Anyone who does not anticipate this, with a network of fellow entrepreneurs, a realistic working rhythm and clear agreements at home about how long the lean period may last, pays the bill later. Talk with your partner not only about the dream but about the numbers: what household income is the minimum, and what is the agreed evaluation date on which you will honestly decide to continue or adjust?

Common mistakes

Leaving out of frustration rather than towards a plan: a bad boss is a reason to leave, not a business model. Forgetting the total compensation package and therefore structurally setting rates too low. Not using the notice period to build what is legally and contractually permitted (watch non-compete clauses and loyalty obligations during notice). Setting no evaluation moments and therefore "almost breaking through" for years. And drawing on the buffer for both the business and the household at once, without a wall between the two.

Recommendations

Before the resignation letter, build a full financial plan: expected revenue build-up month by month, all costs including social contributions and insurance, and a cash flow projection showing when you break even and how deep your buffer dips in the meantime. Run at least three scenarios and decide in advance which floor is the stop signal. A platform such as Finny is built for exactly this exercise: it keeps the profit and loss account, cash flow and Belgian contributions automatically consistent, so the conversation at home is about numbers rather than gut feelings. And only then choose your date.

Quitting your permanent job is not a question of courage but of preparation. The entrepreneurs who make it are rarely the ones who leapt hardest, but the ones who knew in advance how long they could fall. Anyone who knows their oxygen in months, has calculated their worst scenario and has the home front on board does not resign in a moment of euphoria, but at the moment the numbers say it is possible.

Sources: RSVZ (starter figures 2025, social contributions), RVA (springboard to self-employment), VLAIO (starting from employment and unemployment), S. Mullainathan & E. Shafir, Scarcity.