AI on credit in 2026, why data centres are changing the balance sheets of technology groups
The data centre build out is increasingly financed by debt. How negative cash flow arises, what ratings mean and what bondholders should watch.

The short version
- The build out of data centres for artificial intelligence is increasingly financed through bonds and loans. Investment tied to AI was put at more than 500 billion dollars for 2026.
- One software company reports negative free cash flow of 23.7 billion dollars for 2026, with capital spending up 162 percent. Liabilities of 129.5 billion dollars equal 4.3 times operating profit before depreciation.
- A rating agency cut that credit standing to the lowest rung of investment grade. A chipmaker placed a bond of 4.75 billion dollars.
Where high cash inflows and low debt used to be the norm, a financing structure is emerging that looks more like a utility than a software house.
What free cash flow means
Free cash flow is the money left over after all running costs and after investment. It differs from profit because profit includes accounting items such as depreciation. A company can report a profit and still lose money.
A negative figure means more is being spent than earned, and the difference has to come from reserves or new debt. During phases of heavy investment that is normal and even intended. What matters is not the sign but whether the investment later produces returns high enough to carry the financing.
Why data centres tie up so much capital
Software is a business with high development costs and very low costs for each additional unit sold. That produced high margins for decades. Data centres instead need land, buildings, cooling, grid connections and hardware that has to be replaced regularly.
The last point is the decisive one. Accelerators for artificial intelligence are expensive and age quickly, because each new generation is considerably more capable. Their useful life on the balance sheet is therefore set short, which means high depreciation and a recurring replacement need. A factory runs for thirty years, a fleet of servers far less.
Bottlenecks add to the cost. Delivery times for power transformers run from two to four years, and spot prices for memory chips rose by almost 700 percent within a year. Investment is rising not only because more is being built but because the same thing has become more expensive.
Why the financing question is being asked now
For years the build out was paid for out of current funds. Four things changed that. First, the sheer scale of planned investment. Second, interest rates, since the American target range has stood at 3.50 to 3.75 percent since the start of the year. Third, the revenue side, because a data centre costs money immediately while income arrives over years. Fourth, customer concentration, because when much of the expected revenue comes from a handful of customers, a change in their plans changes the whole calculation.
Views differ. A market outlook from one bank expects the cash inflows of the companies involved to exceed their investment through 2026 and 2027. A research house warns instead that the investment boom could lose momentum in 2028. Both are expectations, not measurements.
What ratings and credit figures show
Rating agencies assess the likelihood that a borrower will service its obligations. The decisive line runs between investment grade and the speculative band below it, because many institutional investors may only hold investment grade. If a borrower falls below it, numerous funds and insurers have to sell, the pool of buyers shrinks and financing costs jump.
The leverage ratio sets net liabilities against operating profit before interest, tax and depreciation. A value of 4.3 means, simplified, that a company would need about 4.3 years of that profit to pay off its debt. For a utility that would be unremarkable, for a cyclical technology company it counts as high.
Three further measures are public. The maturity profile shows when loans fall due, because a maturity wall meeting higher rates drives up the interest bill even though nothing has changed in the business. Interest cover sets operating profit against interest expense. And obligations outside the balance sheet, such as long term leases, power commitments and guarantees to third parties, tie up funds but appear only in the notes. One report describes a chipmaker cutting its credit guarantee for a data centre project from 250 to under 120 billion dollars.
Frequently asked questions
What does negative free cash flow mean
That a company spends more than it takes in and covers the difference from reserves or new debt. During heavy investment this is normal and often intended. What matters is whether the investment later generates enough return to carry the financing.
Why do data centres tie up so much capital
Because they require land, buildings, cooling, grid connections and expensive hardware. Accelerators for artificial intelligence age quickly, which means short useful lives, high depreciation and a recurring need for replacement.
What does a rating downgrade tell you
It reflects a higher assessed probability of default. The decisive line is between investment grade and the speculative band, because many institutional investors may only hold investment grade. Falling below it shrinks the buyer pool and pushes financing costs up sharply.
What should an investor watch
The maturity profile of the debt, the ratio of operating profit to interest expense, obligations outside the balance sheet such as leases and purchase commitments, and guarantees given to third parties. The off balance sheet items are often overlooked.
This analysis is for information only and is not investment advice.
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