Software Stacks Cost More Than Their Invoices Show, 2026 Data Suggests

Businesses that run their operations across many software platforms are paying more than their subscription invoices suggest, according to 2026 figures from software-management vendors. The data points to unused licences, tools bought outside IT oversight and, increasingly, usage-based AI charges that are hard to forecast.

Most of the numbers come from companies that sell software-management services, and they lean towards large organisations. They are best read as indicators of a trend rather than audited totals.

What the 2026 figures show

Zylo's 2026 SaaS Management Index, which the company says draws on more than 40 million licences and $75 billion in software spend, puts average annual spend per organisation at $55.7 million. A statistics roundup by Carly, summarising the report, gives the median as $20.6 million and median spend per employee as $9,455. A post by a Zylo executive says average spend rose 8% even as portfolios stabilised.

The same roundup says the average company manages 305 applications. BetterCloud's 2026 State of SaaS, which covers a broader mix of company sizes, puts the figure at 118, up from 106 a year earlier. BetterCloud also found that 44% of apps are not sanctioned by IT.

Zylo reports that unsanctioned "shadow IT" makes up 34% of the average software portfolio but only 4% of spend. In practice, that means these tools are numerous but individually cheap, which can keep them out of sight in budget reviews.

Paying for what nobody uses

Idle licences are the most frequently cited cost. Zylo's 2025 index found that 53% of licences went unused in an average 30-day period, equal to about $21 million in wasted spend per company each year.

A software-comparison guide published by Rework, citing the 2026 index, gives a lower figure: 36% of licences unused. The sources reviewed do not explain the difference, which may reflect different editions or methods, so the range is best treated as indicative.

The 2025 index also reported that companies add about seven new apps a month on average, and that 6.6% of employees had bought a software tool through the expense process, typically on a personal card that was later reimbursed.

Pricing is getting harder to predict

The newer pressure comes from pricing models. Zylo's 2026 index reports that spending on AI-native applications grew 108% year on year, and that 78% of IT leaders had experienced unexpected charges tied to AI or usage-based pricing, according to the Zylo executive's post. Zylo's news page also says ChatGPT is now the most expensed app in its data.

Separately, Vertice, a firm that sells software negotiation services, reported that SaaS price inflation reached 16.4% in June 2026, about four times the 4.2% US consumer price inflation recorded at that time, according to the Rework guide. Rework itself notes that Vertice's index comes from a vendor and should not be read as a neutral study. The Carly roundup, citing Vertice, puts average spend per employee at $9,324 in the second quarter of 2026, up 1.3% from $9,200.

Zylo's page for the 2026 Gartner Magic Quadrant for SaaS Management Platforms, published on 18 June 2026 and covering 16 vendors, says rising AI adoption and unpredictable consumption-based pricing make software management more important. That is Zylo's own description, and Zylo was named a Leader in the report.

What is not established

Estimates of lost productivity, such as $2,400 or $4,800 per employee per year, circulate on vendor blogs. They are modelled by their authors rather than drawn from audited records, so they are not treated here as confirmed findings.

Averages also hide wide variation. Datasets dominated by large enterprises may not describe a small online business running a handful of storefront, payment, marketing and analytics tools. The gap between Zylo's 305-app average and BetterCloud's 118 shows how much the answer depends on who is counted.

What to watch next

Zylo said in a June 2026 statement that software increasingly combines seat-based licensing with consumption pricing, and that it sees the next step in software management as linking insight directly to action. How quickly vendors move towards usage-based billing will determine how much of this cost shows up as surprise charges rather than fixed fees.

Readers should also watch renewal cycles, when contracts are most often renegotiated, and the next editions of the Zylo, BetterCloud and Vertice reports. If idle-licence rates fall and spend per employee stabilises, that would suggest businesses are gaining control. Rising AI-related charges would point the other way.