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You Raised 18 Months of Runway for a 26-Month Gap.

Business Case & ROIBorrower Advisory

Runway is planned against an interval most founders last measured several years ago. The interval moved. The plan did not.

Take an illustrative case. A recurring-revenue technology company closes a seed round with $7.2 million of cash and a net burn of $400,000 a month. That is eighteen months of runway, and the plan is to open the Series A at month fifteen and close it by month eighteen. Nothing about the plan is careless. It is calibrated to an interval that no longer applies.

Cap table data covering thousands of private rounds put the median gap from seed to Series A at roughly 2.2 years as of the end of 2024, with Series A to Series B running about 2.5 years. Call the first one 26 months. A company that raised eighteen months of cash against a 26-month median is eight months short before it makes a single mistake.

Runway raised at close against the median interval to the next round A two point range. A company closing with 18 months of runway is shown on the left in pale blue. The median interval from seed to Series A, roughly 26 months, is shown on the right in the darkest navy as the value argued. The eight month shortfall between them is marked on the connector. RECURRING REVENUE DEBT You Raised 18 Months for a 26-Month Gap. Runway raised at close against the median interval to the next round. 18 months 26 months 8 months short Runway raised Median gap to next round The gap arrives at the end, when there is least room to respond. Source: Private round timing data, end of 2024 | Thalos Capital Research Thalos Capital ©

The eight months nobody budgeted

The arithmetic is not complicated: $7.2 million of cash divided by $400,000 a month is eighteen months, and 26 months less eighteen is eight. What makes that gap dangerous is not its size but where it lands. It arrives at the end, after the plan has already been executed as written, at exactly the point when the company has the least room to respond.

Two things happen in those eight months. The company keeps operating, which means ARR keeps growing and the business keeps getting more financeable. And the cash keeps draining, which means the founder keeps getting less able to act on that. Those two lines move in opposite directions, and the crossing point is where the terms get decided.

Month ten and month sixteen are different companies

Consider the same business making the same decision at two different times.

At month ten, eight months of cash remain. The company is at $6 million of contracted ARR with gross margin above 50 percent and a client base well past ten accounts. A facility sized against that recurring revenue at $3.6 million adds nine months at the current burn, which carries the company to month 27 and past the median interval with margin. The founder is comparing structures, and can walk away from any of them.

At month sixteen, two months of cash remain. The same business, the same ARR, arguably a better one. But diligence on a facility takes four to eight weeks even when the data room is already in order, and an equity round takes months. Two months of runway is not a negotiating window, it is the entire window. The company takes what closes, at the price of whoever will close it.

Anatomy of the same decision, six months apart
Month ten and month sixteen are different companies
Identical business, identical ARR, identical facility. The only variable is how many months of cash remain when the conversation starts, and that variable sets the terms.
Two decision timelines against the median round interval Two timelines spanning 27 months. In the first, the company decides at month ten with eight months of cash remaining and adds nine months of runway, reaching month 27 and clearing the median 26 month interval. In the second, the company decides at month sixteen with two months of cash remaining, which is less time than a facility takes to diligence and close, leaving eight months uncovered before the median interval is reached. Decision at month 10 to 27 Decision at month 16 8 months uncovered median 26 Month 0 18 27 Cash from the round: 18 months at $400K a month Added by a $3.6M facility against contracted ARR: 9 months
At month ten the facility is one of several options and the founder can decline any of them. At month sixteen, two months of cash is less than the four to eight weeks diligence takes plus the time to close, so the same company takes whatever closes first.
Source: Illustrative scenario on end-2024 round timing data | Thalos Capital Research Thalos Capital ©

The business did not deteriorate between those two dates. Its optionality did. That is the whole distinction, and it is invisible on any metric a board reviews monthly, because ARR, margin, and retention all look better at month sixteen than at month ten.

Why the plan keeps getting written the old way

Because the interval is not something a founder experiences more than once or twice. A founder who raised a seed round when rounds closed in eighteen months carries that number forward as a planning assumption, and there is no monthly report that flags it as stale. Meanwhile the two most-quoted numbers in the company, ARR growth and burn multiple, both look fine at month fourteen, which is precisely when the runway question has already been decided.

The correction is a calendar exercise rather than an analytical one. Take the date the cash runs out. Subtract the time an equity process actually takes in this market, not the time it took last cycle. Subtract again the time a debt facility takes to diligence and close. The date that produces is the last day the company still has choices, and for most businesses on an eighteen-month runway it falls somewhere around month ten.

How Thalos Capital Approaches This

Recurring Revenue Debt is structured around contracted recurring revenue rather than hard assets, which is why it can be sized before an equity round rather than after one. An Amortized Term Facility runs three to six years for companies between $2 million and $20 million in ARR, with principal that ladders up as revenue grows. An Interest-Only Facility runs two to three years at $5 million or more in ARR, with interest-only payments and a balloon at term end. Both require a recurring-revenue technology business in the United States, at least ten clients, and gross margin above 50 percent. Neither carries dilution, board seats, or warrants.

The work that matters is the timing rather than the instrument. Thalos Capital sizes the facility against contracted ARR and against the date the company stops having options, then matches it to the sources most likely to fund that profile. A company that extends runway past the median interval is not avoiding a raise. It is choosing when to run one, which is the only variable in a raise a founder fully controls.

The cost of the old planning assumption is paid entirely in terms. A company that reaches month sixteen with two months of cash will almost certainly get funded, because a growing recurring-revenue business with contracted customers is a fundable asset in any market. It will simply be funded on terms set by the calendar rather than by the company. Eight months of runway is the difference, and it was available at month ten.

Most financing situations have more options than the borrower initially sees. A conversation is enough to map them. Submit your financing request at https://thaloscapital.com/contact.

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