Personal runway: savings, family support and the quit date

Core idea#

The company has a runway, and so do you. They're different numbers, and the personal one usually runs out first. Founders who quit without a personal runway plan end up making company decisions for personal reasons: taking a bad term sheet because rent is due, or abandoning a good idea six months too early.

A personal runway plan answers four questions:

1. How much does my household need each month, at a level we can live with for two or more years?
2. Where will that money come from while the company pays me little or nothing: savings, a partner's income, family support, grants, a stipend, part-time work?
3. How many months does that buy? Your personal runway.
4. When do I quit, and when would I stop? A quit date tied to specific triggers, and a review date with a stop condition agreed in advance.

Who it's for: anyone planning to leave a salaried job or a funded academic post to found, and the partners and families who will share the risk.

Benchmarks to plan around#

How long until the company can pay you

• Pre-seed rounds close fast once they start , but finding the lead takes months. One summary of Carta data puts the median pre-seed close at about three weeks from first commitment to money in the bank (VC Beast); the months of conversations before that first commitment are the bigger part.
• The gap from seed to Series A is about two years. Carta's data show a median of 2.1 years for Series As raised in 2024 (Carta), 2.2 years in 2025 overall, and 1.9 years for AI companies (Carta). It dipped to about 1.9 years in the second half of 2025 (Sierra Ventures, with Carta's Peter Walker). Deeptech companies often take longer.
• Many seed companies never reach Series A. Of companies that raised seed in Q1 2022, only about 15% had raised a Series A within 24 months (Peony, citing Carta cohort data).

What founders pay themselves#

US guides suggest founders take little or nothing before raising, then roughly $50k at preseed, $100k at seed and $150k at Series A (OpenVC). These are US software figures; in India and the UK, and in deeptech companies with heavy R&D costs, founder salaries at pre-seed are usually lower in absolute terms. The principle travels: investors expect a salary that lets you focus, not one that matches your market rate.

What this means for your plan#

Assume:

• 6 to 12 months of little or no pay before the first institutional money, unless a grant, fellowship or incubator stipend covers you;
• a modest salary for the next 18 to 24 months after that;
• a real chance that you'll need to raise a bridge round, or that the company won't make it, and you'll need to find work.

A personal runway of 18 to 24 months at your target living cost, before counting any founder salary, is a reasonable target. Twelve months is a minimum, and only with a clear funding path.

Building your personal runway model#

Use a spreadsheet with one row per month for 24 months. It takes an evening.

Step 1: Your monthly burn, in three tiers#

List every household cost, then sort each into:

• Fixed: rent or mortgage, loan repayments, insurance, school fees, support for parents. Flexible: food, transport, utilities, phone.
• Optional: travel, eating out, subscriptions, big purchases.

Work out three monthly figures: current (everything), lean (fixed + flexible, trimmed) and survival (fixed + the minimum flexible). Plan on lean ; know your survival number.

Step 2: One-off costs#

Add costs that come from leaving a job: replacing health insurance, repaying a joining bonus or relocation allowance, losing unvested pension or employer contributions, a laptop, travel to customers.

Step 3: Money coming in#

For each month, add what you can count on, and mark how certain it is:

Step 4: Calculate the runway#

Runway in months = money available ÷ (lean burn − certain income). Run it twice: once with certain income only, once including the medium sources.

Step 5: Keep an emergency fund outside the plan#

Set aside three to six months of survival costs that you won't spend on the company. This is what protects you from making desperate decisions.

Worked example (illustrative)#

Sara is a postdoc in the UK. Her household's lean burn is £3,200 a month. Her partner contributes £1,800 a month to shared costs. That leaves a gap of £1,400.

• Savings she'll use: £20,000. Emergency fund kept aside: £9,000.
• She's awarded a 12-month enterprise fellowship that pays a salary of £3,000 a month after tax.

Months 1 to 12: the fellowship more than covers the gap, and she saves £1,600 a month (£19,200). Months 13 onward: the gap is £1,400, covered by £39,200 of savings, which lasts about 28 months.

Personal runway: about 40 months , before any founder salary. That's a strong position, and it means she can negotiate a pre-seed round without pressure.

Choosing the quit date#

Quit on triggers, not feelings#

Pick two or three conditions, and quit when they're met, not before. Good triggers for researcher-founders:

• Funding: a fellowship, grant or pre-seed commitment that covers at least 12 months. Customer evidence: a letter of intent, a paid pilot or at least 20 interviews pointing to the same pain (playbook 1.19).
• Team: a co-founder committed to the same date.
• IP: a licence or option agreement signed or agreed in principle with the institution (playbook 2.07).
• Runway: your personal model shows at least 18 months.

If you're on a fixed-term contract, the end date may decide for you. Plan the triggers backwards from it.

Set a stop condition at the same time#

Write down, with your partner or family: "If by [date], we haven't [raised X / signed a paying customer / hit milestone Y], I'll look for a job." Pick a date that leaves at least three months of runway for the job search. You can change the condition later, but only by agreement, not by drift.

Ways to stretch your runway#

• Use leave instead of resigning (playbook 1.03).
• Apply for paid programmes before quitting: fellowships, incubator stipends, grant salary lines (1.10, 1.11).
• Phase it. Drop to part time for three to six months while you test the idea.
• Cut fixed costs before you quit, not after: move, refinance, delay big purchases. Consult in your field a few days a month. It also keeps you close to customers.
• Pay yourself something from the first round. A small salary is cheaper for the company than a founder distracted by money worries.

Country specifics#

General information, not financial or tax advice. Check current rules with an adviser.

Scripts#

The conversation with your partner#

"Here's the plan on one page. Our lean budget is [X] a month. With [savings / your income / the fellowship], we have [N] months before we touch the emergency fund. I'll quit when [triggers]. If by [date] we haven't [stop condition], I'll start looking for a job. What would you change?"

Asking family for support#

"I'm starting a company. I'm not asking you to invest. I'm asking whether you could help with [specific amount] a month for [period] while I'm not drawing a salary. If it doesn't work out by [date], I'll go back to a job. Here's what I'd be doing month by month."

If family support is a loan, write it down, with repayment terms. If it's an investment, it must go through the company properly (playbook on friends-and-family rounds).

Talking to investors about your salary#

"I'm proposing a salary of [X], which covers my household's basic costs. It's about [Y]% of what I earned before. It lets me work full time without worrying about rent."

Common mistakes#

• Planning on your current lifestyle. Use your lean number.
• Counting the founder salary before the round has closed.
• Spending the emergency fund on the company. That fund is what keeps decisions rational.
• Forgetting one-off costs: insurance, lost bonuses, unvested pension. Not agreeing a stop condition. Without one, the decision gets made by exhaustion. Assuming family support instead of asking explicitly.
• Taking zero salary for too long. It narrows the founder pool to people with money, and wears you down.

Related playbooks#

• 1.01 Should I start a company?
• 1.03 Leave, sabbatical or dual role
• 1.06 Founder visas
• 1.10 Fellowships for pre-company founders
• 1.11 Indian incubators
• 1.17 Talking to family

Sources#

• Carta, time between rounds and AI vs non-AI.
• Sierra Ventures, What the data actually says about pre-seed, with Peter Walker.
• Peony, Startup fundraising benchmarks Q1 2026 (citing Carta seed-to-A graduation data).
• VC Beast, VC fundraising timeline.
• OpenVC, How much should startup founders pay themselves.

Worked examples are illustrative. Last checked November 2026.