How to Calculate Cash Runway as a Freelancer

Calculate freelance cash runway with uneven income, personal expenses and a tax reserve. Follow a worked example and check your numbers with a free calculator.

1. Start with spendable cash, not your account balance

A freelancer can have a healthy-looking balance and still be short of runway. Part of that balance may belong to a future tax payment; part may be needed to cover a subcontractor you already hired. Cash runway asks a narrower question: if new work slows down, how long can you pay for your life and your business without borrowing?

Spendable cash = bank balance − reserved taxes − committed payments
Runway (months) = spendable cash ÷ monthly net cash loss

Use cash you can actually access. Do not include unpaid invoices, a credit-card limit or a prospective contract. If you have separate personal and business accounts, include only the savings you are willing to use to support the business. Keep an emergency reserve outside the calculation if you do not intend to spend it.

2. Include both business and personal costs

Startup runway guides often count payroll and software but ignore the founder’s rent. When you freelance full time, the business has to sustain both. Count the personal draw you need to pay rent, groceries, insurance and debt minimums, alongside software, contractors, workspace and other business cash expenses. Avoid counting the same payment twice: if you already include a $2,800 owner draw, do not also add the rent paid from that draw.

• Use actual cash expenses, not accounting depreciation.
• Convert annual renewals into a monthly allowance, but schedule the real payment date too.
• Subtract taxes reserved on money already earned before calculating spendable cash.
• Count revenue only when the client actually pays, after fees and refunds.

3. A worked freelance runway calculation

Suppose a designer has $24,000 across their accounts. They have earmarked $5,000 for tax and owe $1,000 to a subcontractor. Their monthly personal draw is $2,800, business expenses average $700, and recent collected client payments average $1,500 a month.

Spendable cash = $24,000 − $5,000 − $1,000 = $18,000
Net monthly loss = $3,500 − $1,500 = $2,000
Runway = $18,000 ÷ $2,000 = 9 months

That nine-month estimate assumes the same payments arrive every month. With no client payments, the cash would instead last $18,000 ÷ $3,500, or about 5.1 months. Both figures are useful: one is the recent pace, the other is a no-income stress test.

4. When income is inconsistent, calculate a range

Do not extrapolate one excellent month. Look at collected cash from the last three to six months and calculate a conservative case, a recent-average case and a zero-income case. If your cash flow is positive, dividing by a negative burn rate makes no sense: your runway is not finite at that pace. Still test what happens if the largest client stops paying.

Try your numbers in the free burn rate calculator, then place expected receipts and large bills on the cash flow forecast. Neither requires an account.

5. What to do with the number

1. Set a cash floor: the balance at which you will reduce discretionary costs.
2. Review it monthly after reconciling actual client payments and tax transfers.
3. Recalculate immediately if a major client pauses or an invoice becomes overdue.
4. Pair the runway figure with a dated forecast for upcoming bills.

What if my runway is only three months?

Treat it as a reason to act now, not a verdict. Chase collectible invoices, pause optional expenses and prioritize work that pays soon. See the slow-month stress test for a way to turn that number into a dated action plan.