For founders, advisors, and anyone structuring a financing arrangement around a software business, understanding the difference between a traditional fixed-term fund and an evergreen fund is one of the more underrated pieces of due diligence available.
What an evergreen fund actually is
A traditional private equity or venture fund is typically raised with a fixed lifespan, often ten to twelve years, with a defined investment period followed by a defined exit window. That structure isn't arbitrary. It's how the fund's own investors, the limited partners, expect to get their capital back, and it shapes nearly every decision the fund makes downstream.
An evergreen fund, sometimes called a permanent capital vehicle, is structured differently. There's no fixed end date forcing a sale within a set window. Capital is raised, deployed, and can be held indefinitely, or recycled into new opportunities, without a countdown clock driving the timeline.
The practical effect is straightforward: a fixed-term fund is structurally required to plan its own exit from the day it invests. An evergreen fund isn't, which removes a source of pressure that otherwise shapes hiring, product decisions, and customer commitments.
How this plays out differently for software businesses specifically
Software companies are unusually sensitive to ownership timelines, for a few reasons that don't apply as strongly in other industries.
Customer relationships often run on multi-year contracts. A buyer under pressure to exit within a fixed window has an incentive to optimize for metrics that look good at the next sale, not necessarily for the customer relationship five years out.
Product roadmaps compound over time. Engineering decisions made under a short investment horizon tend to favor visible, near-term wins over the kind of infrastructure work that pays off later but doesn't show up cleanly in a two-year growth chart.
Teams notice ownership structure faster than founders expect. Employees who've been through a fixed-term fund's exit process before tend to price that uncertainty into their own retention decisions, whether or not leadership talks about it openly.
None of this means fixed-term funds are poorly run. Many are excellent operators within their structure. It simply means the structure itself is a variable worth pricing in, separate from the team's reputation or the terms on offer.
Questions worth asking to identify which structure you're actually dealing with
Fund structure isn't always stated plainly in early conversations, so it's worth asking directly rather than inferring it from tone. A few useful questions:
Is this fund raised with a defined term, and if so, what is it?
How many transitions has this investor completed, and on what timeline?
What happens to the team and product roadmap if the fund's own liquidity needs change?
Is there a scenario where this investor is under pressure to exit regardless of how the business is performing?
A direct, specific answer to these questions tells you more about what to expect after closing than almost anything in the term sheet itself.
Closing thought
Capital structure rarely gets the same scrutiny as price, but it's arguably the better predictor of what a software company looks like five years after a transition. Fixed-term funds and evergreen structures aren't inherently better or worse, they're built to optimize for different things. A permanent capital investor in enterprise software is, by design, optimizing for the long run rather than a predetermined exit window, which is one reason permanent capital has become a more visible part of the conversation in software financing. Whichever side of a transition you're on, understanding which structure you're actually negotiating with is worth the extra question.
