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A free scan shows the junk files, broken settings and background clutter dragging Windows down - then fixes them in one click.Free scan · Windows 10 & 11There is no verified worldwide SaaS-only market-size or growth figure in the primary-source data available for this guide. Gartner forecasts $1.468 trillion in worldwide software spending in 2026, but that broader category is not the SaaS market. The clearest SaaS-specific figure here is regional: Gartner forecasts A$16.377 billion in Australian SaaS spending in 2026, up 13.8% from 2025.
That distinction matters when comparing headline “SaaS statistics”: spending on all software, public-cloud spending, AI software, and SaaS are different measures. The figures below identify what each number covers, where it applies, and when Gartner published the forecast.
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What is the size of the SaaS market in 2026?
A reliable global SaaS-only total is not established by the cited primary forecasts. Gartner’s July 2026 forecast of $1.468 trillion in worldwide software spending covers software broadly, not SaaS alone. It should not be relabeled as the global SaaS market size.
The most specific SaaS spending estimate available here is Gartner’s May 2026 forecast for Australia: A$16.377 billion in SaaS spending in 2026, a forecast increase of 13.8% from 2025. This is a national estimate, not a global figure.
How to read the headline numbers
- Software spending is broader than SaaS and should not be used as a SaaS market proxy.
- Public-cloud spending includes distinct service categories, including SaaS, PaaS and IaaS; the total is not SaaS spending.
- AI software spending is a category of software, not an estimate of SaaS spending.
- Enterprise application exposure is a forecast about potential competitive pressure, not a measure of SaaS revenue already lost.
Key SaaS and related spending statistics for 2026
| Statistic | What it measures | Geography and period | Publisher, forecast vintage |
|---|---|---|---|
| A$16.377 billion; up 13.8% from 2025 | SaaS spending | Australia, 2026 forecast | Gartner, May 2026 |
| A$33.6 billion; up 17.9% from 2025 | Public-cloud spending across service categories, not SaaS alone | Australia, 2026 forecast | Gartner, May 2026 |
| $1.468 trillion; up 15.5% year over year | Worldwide software spending, not SaaS-only spending | Worldwide, 2026 forecast | Gartner, July 2026 |
| $461.637 billion | AI software spending, not SaaS-only spending | Worldwide, 2026 forecast | Gartner, September 2026 |
| Up to $234 billion, roughly 20% of enterprise application SaaS spending by 2030 | Enterprise application spending potentially exposed to agentic AI arbitrage; a forecast, not observed losses | Enterprise applications, through 2030 | Gartner, July 2026 |
| $6.37 trillion; up 14.2% from 2025 | Total IT spending, broader context and not a software or SaaS total | Worldwide, 2026 forecast | Gartner, July 2026 |
Sources: Gartner’s Australia public-cloud forecast, worldwide IT spending forecast, AI software forecast, and agentic AI enterprise application forecast. Spending forecasts are estimates, not audited totals of realized revenue.
How fast is SaaS growing?
The available SaaS-specific rate is Gartner’s Australian forecast: spending is expected to rise 13.8% between 2025 and 2026. It is not a worldwide SaaS growth rate. The available primary-source figures do not establish a comparable global SaaS-only percentage for 2026.
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Gartner also forecasts Australian public-cloud spending to grow 17.9% to A$33.6 billion in 2026. That faster overall public-cloud rate does not mean SaaS itself is growing at 17.9%: public cloud combines separate service categories, and Gartner identifies SaaS as its largest category in this forecast.
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Why Gartner’s 2026 forecasts changed
Forecasts are snapshots, not fixed outcomes. Gartner’s October 2025 estimate put worldwide IT spending in 2026 at $6.08 trillion. In its July 2026 update, Gartner forecast $6.37 trillion, up 14.2% from 2025. These are total IT spending figures, not SaaS or software totals; their difference illustrates why the forecast publication date belongs beside a number.
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Gartner attributes strong overall IT spending growth to AI-related investment, with data-center systems and IaaS among the fastest-growing areas. That pattern is uneven across technology categories: rapid infrastructure demand does not imply that every SaaS segment is growing at the same pace. As Gartner analyst John-David Lovelock put it in the July 2026 IT spending release, “Data center systems and infrastructure as a service (IaaS) are the top growth segments, reflecting accelerating investment in AI infrastructure, cloud platforms, and intelligent applications.” This statement concerns broader IT spending, not a SaaS-specific growth rate.
How agentic AI could change SaaS economics
Gartner’s July 2026 forecast estimates that up to $234 billion in enterprise application spending could be exposed to agentic AI arbitrage through 2030—roughly 20% of enterprise application SaaS spending by that year. This is a forecast of potential exposure, not evidence that vendors have already lost that amount or that the outcome is certain.
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The mechanism Gartner describes is a shift in how work gets done. Agents may complete tasks across systems directly, reducing the need for people to navigate multiple traditional application interfaces. If customers pay for user seats but agents do more of the work, the relationship between user growth and software revenue could weaken. Gartner analyst George Brocklehurst, Managing Vice President, summarized the issue in the July 1, 2026 release: “Agentic AI changes the economics of software.”
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1Fix the driver behind crashes, sound loss and screen glitches2Repair Windows errors before they cause bigger problems3Scan for outdated or missing drivers - takes under a minuteCompetitive pressure and vendor response are different trends
Potential disruption to application economics is one side of the trend. Gartner’s September 2026 forecast also says software vendors are embedding agentic AI into existing products. That product response does not, by itself, establish that vendors will avoid the forecast exposure or that customers will adopt the features at a particular rate.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What these statistics mean for SaaS buyers and operators
For buyers, broad cloud or software growth figures are not a substitute for evaluating the specific SaaS category, product, or vendor. For operators tracking a subscription business, industry forecasts are context—not a benchmark for an individual company’s growth, retention, or revenue. Compare like with like: use the same category definition, geography, period, currency, and measure before drawing conclusions.
Quick Recap
- Label figures as spending, revenue, valuation, or growth; they are not interchangeable.
- Keep the geography and forecast year attached to the statistic.
- Distinguish an analyst forecast from an observed result, especially for future AI-related effects.
- Do not combine SaaS with PaaS, IaaS, AI software, or all software unless the source explicitly defines the measure that way.
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