If you’re planning to quit your job, change careers, or start freelancing, the first question is always the same: how long can my savings actually last?
That number has a name. It’s called your financial runway, and it is the single most important input in any major career decision. Not your salary history, not your CV, not your savings balance in isolation. The runway is what determines what options are actually available to you. How much time you really have.
Most people have a rough sense of it. Few have calculated it precisely. The gap between those two things is where bad decisions get made.
The Formula Is Simple. The Inputs Are Not.
At its core:
Financial Runway = Total Available Cash / Monthly Burn Rate
| Available cash | Monthly burn rate | Runway |
|---|---|---|
| €30,000 | €3,000/month | 10 months |
| €30,000 | €5,000/month | 6 months |
| €50,000 | €3,000/month | 16 months |
Two numbers. One answer. The problem is that both inputs are harder to get right than they appear.
Most people overcount their available cash, including money they cannot access without penalty or delay. And most people undercount their monthly burn rate, forgetting about irregular costs that do not appear every month. The combined result is a runway that looks longer on paper than it actually is.
This is not a small rounding error — it is typically a 2–4 month difference, which in a job search or career transition is the difference between a comfortable transition and a desperate one.
What Actually Counts as Available Cash
The test is practical: if income stopped tomorrow, what could you spend within 30 days without penalties or major consequences?
That includes your current accounts, savings accounts, and your emergency fund. It includes any severance you have received, calculated after tax. If a tax refund is coming in the next few months, include a conservative estimate.
What it does not include: pension accounts, long-term investment accounts, or any savings vehicle with early exit penalties. On paper these are assets. In a runway calculation, they are not liquid. Penalties and tax treatment on early withdrawals can reduce the accessible amount by 20 to 40 percent depending on your country and account type. Treat them as a last resort, not a first resource.
Why Your Burn Rate Is Probably Wrong
The instinct is to add up known bills (rent, car, subscriptions) and call it your burn rate. The problem is that spending does not work that way.
The more accurate method: pull three months of actual bank and card statements. Add up everything that left your accounts. Divide by three.
This catches what people forget to budget for: the annual car service, the quarterly insurance premium, the dentist, the home repair that appears once and will appear again. These costs are irregular but not optional. Spread across 12 months, they often add 200 to 500 euros per month to what felt like a known number.
If any income is still coming in (a partner’s salary, freelance work, social benefits, rental income), subtract the after-tax amount from your gross monthly spending. That gives you your net burn rate, which is the number that actually determines your runway.
One common mistake: people include benefit payments at the gross figure. Use the net amount you actually receive. The difference matters for the calculation.
What the Number Tells You
Once you have a runway number, the question is how to read it.
Context matters more than benchmarks. A software developer with strong recent experience and an active network reads a six-month runway differently than someone making a mid-career shift into an unfamiliar field. The same number carries different weight depending on the situation.
That said, some patterns hold broadly.
Income needs to be the immediate focus — not the longer-term job search. Consulting, part-time work, contract arrangements. Anything that slows the burn while the search continues.
Workable but not comfortable. The search needs to start now, and discretionary spending should be reviewed soon.
Real choices exist here. You can be selective about the type of role, the company, the offer. You can say no to something that is not right.
Strategic moves become possible: a deliberate retraining period, a calculated bet on something new. This is the range where a planned transition becomes genuinely low-risk.
The Scenario You Are Not Modeling
Most people calculate one runway number at current spending, assuming no income. That is a starting point, not a plan.
The more useful question is what happens when the inputs shift. What does your runway look like if the search takes two months longer than expected? What if you bring in part-time income that covers a third of your expenses? What if you accept a role at 85 percent of your current salary?
Each of these changes the endpoint by weeks or months. Modeling them side by side is what separates a financial plan from a financial estimate.
The scenario that catches people most often: the realistic case looks fine, so the pessimistic one never gets modeled. Then the pessimistic case happens and there is no plan for it. Running the downside scenario in advance is not pessimism. It is preparation.
Three Adjustments That Move the Number
If your runway is shorter than you need, there are three ways to change it. They work best used together.
Slow the burn
Housing and transportation represent 50–60% of most household budgets. Cuts elsewhere have limited effect by comparison. If the runway is genuinely tight, the honest question is whether those two categories can be reduced, even temporarily.
Extend the cash
Review what you own that you do not need. A home equity arrangement can serve as a backstop in some situations, though it should be treated as a floor for genuine emergencies, not a way to fund regular spending.
Add partial income
At a €3,000 monthly burn rate, adding €1,000 per month in part-time income does not extend the runway by a third. It cuts the monthly drawdown by a third, which compounds over time. Even modest continuing income changes the picture significantly.
The Calculation Is Only Half of It
Knowing your runway number is step one. The more useful habit is revisiting it regularly.
Your runway changes every month as savings decrease and circumstances shift. A calculation from three months ago is not your current runway. For anyone in an active transition, recalculating monthly takes about ten minutes and keeps the picture accurate.
The goal is not to obsess over the number. It is to make it a known, stable input in your decisions rather than a background anxiety.
Frequently Asked Questions
How do I calculate my financial runway?
Divide your total liquid savings by your net monthly burn rate. Net burn rate is your total monthly expenses minus any continuing income (social benefits, freelance work, a partner's salary). The result is the number of months your savings will last at your current spending level.
What is a good financial runway before quitting a job?
It depends on what you are transitioning into. For a job search in a familiar field, six to nine months is workable and twelve months is comfortable. For a career change into a new area, twelve months is a reasonable minimum. For moving into freelancing, where income takes time to stabilize, most advisors suggest twelve to eighteen months.
Does social or unemployment benefit income count when calculating runway?
Yes. Subtract your net benefit amount from your monthly expenses to get your real burn rate. Use the after-tax figure you actually receive, not the gross amount, for an accurate calculation.
What expenses should I include in my burn rate?
Everything. Fixed monthly costs like rent, car, and insurance. Variable costs like groceries and utilities. And irregular costs like annual subscriptions, car maintenance, and medical expenses, divided by 12 to get a monthly equivalent. The point is your real spending pattern, not an optimistic budget.
Should I include pension or retirement savings in my available cash?
Generally no. Early exit penalties and tax treatment on long-term savings accounts vary by country and account type, but the accessible value after penalties is often significantly lower than the headline balance. Treat these accounts as a last resort. Check the specific rules for your account type before including any of it in your runway calculation.