The Hurdle Rate Moved. Most Capital Plans Have Not Caught Up.

A Number Inside Every Company Just Moved

There is one number, buried far inside every big company, that determines which projects get funded and which ones get left on the cutting room floor. It rarely sees the light of day, and then typically only once a year, when a corporate finance team devises it and sends it down to the business units to serve as their cost of capital hurdle rate.

It recently became significantly wrong - and not many companies have updated it yet.

The culprit is the government bond market - specifically, that long-dated Treasury yields have jumped substantially month-over-month in August with the thirty year now positively screaming above five percent. Stories in the press have focused on the implications for deficits and central banks, which is fair enough - but it is also, quite simply, a corporate capital allocation story, and one which has not received nearly enough attention.

The One Sentence Version

A hurdle rate is the return threshold that a project must exceed to be authorized for funding. Tell your CFO that the project you want is going to yield 7 percent when they need 9 percent, and you are out of luck - and this is true regardless of how good an idea it is.

The logic is that a company has a certain amount of debt and equity on its balance sheet, financing that has a cost associated with it. Debt service tends to be interest-only payments, so the cost there is straightforward - the rate the company is paying on its bonds. The cost of equity is more nebulous but no less real; it is the return shareholders would demand if they knew the precise risk profile of the firm. Blending the two gives the average cost of capital, which, if a new project earns less than, should not be funded. The hurdle rate is usually that number plus a risk premium, and that is the bare minimum any project has to earn.

What Actually Feeds Into It

Where things get interesting is that both sides of the equation are ultimately tied to the government bond market.

The cost of debt is obviously directly tied, as a company will borrow at a rate it knows it can repay - the Treasury rate for a given maturity, plus a spread for having worse credit than the government. So, if yields on the thirty year jump by one percent, and the company’s credit spread is unchanged, its borrowing costs are up by one percent - even if nothing about its business has changed.

The cost of equity is less obvious but has a similar link. The standard way to calculate it starts with a risk-free rate, which in practice is the long Treasury, and adds an equity risk premium on top. So if the risk-free rate moves, everything that depends on it moves too - the cost of equity, the hurdle rate, and by extension the value of all new projects.

Running the Numbers on an Ordinary Project

Abstract math is all well and good, but let us ground it in something tangible.

Say a company was contemplating a distribution center. Let us assume it would cost 100 million dollars to build, and in perpetuity it would generate 12 million dollars a year in cash flows. Now let us discount those future cash flows at various rates to see what they are actually worth today, and by extension whether this is money well spent.

Nothing about the project has changed, but its economic viability has turned from positive to negative simply by virtue of the rate we use to discount it has jumped by three percent. This is not an edge case - this is what happens to any project when the cost of capital increases, although the magnitude will vary depending on the timing profile of the cash flows. A short duration project - one that pays off the cost of capital quickly - will be discounted less heavily, all else being equal, while something long dated will see its NPV ravaged.

The Long Duration Projects Die First

One thing to note is that the effect is not linear, and that is probably the most important thing to understand about the interaction between hurdle rates and interest rates. Discounting future cash flows has a much bigger impact on the value of those cash flows the further they are out. Put simply, a dollar in twenty years has to grow substantially to offset the loss in value from waiting to get it - and so a small change in the rate has a massive effect. In practice this means that a jump in the discount rate will most heavily affect long duration projects, or projects that take a long time to pay for themselves.

When it comes to corporate capital allocation, there is a strategic reason for this. Capital expenditures tend to fall into two categories - short duration, quick payback projects that tend to be bolt-ons to existing operations, and long duration, slow payback programs that are often capital-intensive. The latter tends to be much more essential to growth, but its duration profile puts it at far greater risk whenever the hurdle rate increases.

Meanwhile, the former category has much shorter time horizons and so is much less affected by changes in long dated Treasury yields. This means that, in practice, a jump in the discount rate will lead to capital budgets being skewed towards shorter duration, safer projects - and away from longer ones. This is a rational allocation from the company’s perspective, but it has the collateral effect of slowing overall investment.

Payback Periods Quietly Tighten

One thing to note is that hurdle rates are not the only metric companies use to evaluate projects, and the same change in the cost of capital affects the other one too, although not as directly.

This is known as the payback period - the length of time it takes for an investment to recoup its initial outlay - and it is a crude metric that ignores the time value of money. Because of this it is often derided in finance departments, but it persists due to being intuitive and serving as a proxy for risk.

When money becomes more expensive, the acceptable payback period is shortened. So, a company that might have funded a project with a five year payback period in January is much less enthusiastic about it in August when cash is tighter. The change might not be explicitly articulated - it might simply be that the business unit has to make its case for why such a project should still be funded - but it is a real effect, and one that cuts off long duration projects before they ever get to a hurdle rate review.

Why the Official Number Is Usually Stale

Given all that, it would make sense that companies would update their hurdle rates whenever market conditions changed. They almost certainly do not update them nearly as often as they should.

The hurdle rate is typically set as part of the annual planning process, embedded into a company’s operating budget, capital allocation assumptions, and executive compensation targets - meaning it is a number that gets set once a year and then basically never touched again regardless of what happens in the meantime. If things change, it is often simpler to update the capital budgets and targets than to change the hurdle rate itself - not least because people will always find it much easier to adjust to new circumstances if they are not actively told they have to.

As a result, a lot of companies have a 2026 hurdle rate that failed to incorporate 2024 conditions, and hence a capital allocation policy that implicitly incorporated 2023 numbers. Every project that has been funded under these terms has, in effect, passed a review that used an out-of-date number relative to what the company actually knew.

The Case for Leaving It Alone

On the other hand, a company that updates its hurdle rate every time yields tick up or down is making a different set of errors.

Long dated assets have costs that extend far into the future, and so the relevant cost of capital for any given project is some sort of smoothed average of what money will cost over time rather than the instantaneous number from the bond market. Additionally, the movements in the bond market rarely have anything to do with the cash flows of a specific asset, and so a hurdle rate that tracked every change would essentially be a random walk - there would be no economic rationale for it. The appropriate rate for a thirty year asset built in 2026 is almost certainly not the same as the rate for one built in 2024, and so a company that updated its hurdle rates every month would have dramatically different capital allocation policy over the course of the year.

What is important to recognize is that, for most purposes, stability in the hurdle rate is better than volatility - and so a company should update it rarely rather than often. In practice this usually means only when there is an obvious step change in the relevant bond yields. The challenge is that deciding whether any given change qualifies as a step rather than noise is non-trivial.

What Would Make This a Level Shift

The case for this specific jump being a level shift rather than noise is grounded in what caused it in the first place.

Long yields are not rising because the Federal Reserve is tightening. The policy rate has been stuck in a narrow range around 3.50-3.75 percent - and it is the thirty year that has seen its yields jump, and that reflects different forces. It reflects the balance of supply and demand on the bond market - most specifically the fact that investors now require higher compensation for committing their money for such a long period, possibly due to inflation having exceeded the two percent target for five years running.

Both of these are trends that are not easily reversed, and so if this is truly a permanent shift in the natural rate of interest - if thirty year yields really do reflect permanently higher inflation expectations - then a hurdle rate calculated in 2023 is simply incorrect for 2026.

The Borrowing Side Moves Twice

One place where the cost of capital can be misleading is the fact that the cost of debt is frequently higher than the Treasury rate.

A company will borrow at a rate that reflects the Treasury yield plus a spread for having worse credit than the government, and that spread is compensation for the risk that the lender takes on by making the loan. So, a rise in yields will push up the borrowing costs for virtually every company - but it will push them up by more than the amount of the increase in the Treasury rate, because the spread will widen as well, for the reasons stated.

It is important to remember that different lenders have different comfort levels with different obligors. So, when the base rate moves, the amount of additional compensation demanded by the market varies too, with weaker credits seeing their spreads widen by more. The result is that a jump in Treasury yields will have different effects on different companies, with the most vulnerable ones seeing their financing costs rise by more than others. We saw this dynamic play out in exactly this manner during the tapering tantrum in 2013 - a rate hike for one segment was interpreted by the market as an existential threat to another.

Likewise, the difference between firms with internal cash on hand and those that have to fund their operations with debt is stark - and so a change in rates will affect the two disproportionately, with the latter group seeing their cost of capital rise much more sharply. In general, a period of higher interest rates will tend to advantage companies with strong balance sheets and disadvantage those with weak ones, and it is a competitive dynamic rather than just a financial one.

What This Sounds Like in the Room

Abstract numbers and charts are all well and good, but eventually, a finance person has to put it all together and explain to an operating leader why something they wanted is no longer going to happen, or at least why it is going to be much harder. This is not really something that can be communicated as a theoretical hurdle rate. What can be communicated is the idea that the company is no longer able to fund as many long duration projects because its cost of capital has jumped, and its capital allocation policy is now out of step with reality.

The follow up question to that should not be about whether the hurdle rate should change, but rather what the operating leader can do differently to make the case for a long duration project - or, ideally, modify it to make it less long duration. That might involve pulling cash flows forward, reducing the front-loaded capital expenditures, or any other number of ways to make a project’s cash flow profile more favorable against a higher discount rate.

That is what a hurdle rate is for, really - not to stop projects, but to prioritize the ones that actually help the company grow. And if an internal rate of return is too low to justify the spend, the company either needs to change that number or modify the project until it has one that works - in either case, ideally without sacrificing long duration growth for short term comfort.

The Bottom Line

The jump in long dated yields has been framed as a bond market story and a fiscal policy story, but it is also a corporate capital allocation story. One that has lagged the former, and probably has more impact on the latter than is currently realized.

Every company has a hurdle rate somewhere in its finance division that acts as a proxy for the cost of capital for would-be capital expenditures, and few have updated those numbers since the beginning of the year. The result is a capital budgeting environment in which projects have to deliver returns in line with 2023 rates, despite the fact that 2026 rates are demonstrably higher. The implication for the future of corporate investment is obvious - the hurdle rate is the minimum return for any project, and so anything below it is less desirable than alternatives, and companies will reduce their exposure to those sorts of projects over time.

When the time comes to update those hurdle rates, it will become obvious that the projects most affected are the long duration ones, as the compounding effect of the discount rates ravages distant cash flows. The capital budgets for 2026 will look considerably different than those for 2025 - and the bond market is the reason why.