A widely cited industry report puts the global online gambling market at $255.44 billion by 2035, up from roughly $88 billion in 2025. That number is real, but it is only one of at least six competing 2033-2035 projections from established research firms, and they disagree with each other by more than $400 billion. The gap says less about the industry’s true trajectory than about how forecasting methodologies differ — and it matters more than the headline figure itself.
Key takeaways
- Precedence Research forecasts the online gambling market will grow from $88.04 billion in 2025 to $255.44 billion by 2035, an 11.24% CAGR — but five other major firms put the 2033-2035 endpoint anywhere from about $203 billion to $620 billion.
- Hard regulatory data for 2025 shows real, if uneven, growth: US commercial gaming revenue hit a record with iGaming up 27.6% and sports betting up 22.8%, per the American Gaming Association.
- Brazil’s newly regulated market grew GGR to R$20.07 billion in H1 2026, yet independent research estimates 41-51% of local betting activity still flows to unlicensed operators.
- A separate 2025 study estimated global unregulated online gambling wagering at $5.9 trillion, with unlicensed operators capturing roughly 78% of global online gross gaming revenue — a scale most ten-year forecasts do not explicitly model.
- GamblScout’s algorithm treats third-party market forecasts as directional context only; operator scores are built from verifiable, current operating data, not projected market size.
Table of contents
Where the $255 billion figure comes from
The $255 billion figure originates from Precedence Research, which
estimated the global online gambling market at USD 88.19 billion in 2024 to $275.57 billion by 2035
in one release, and in a more recent update
evaluated the market at USD 88.04 billion in 2025 and predicted it to hit around USD 255.44 billion by 2035, growing at a CAGR of 11.24%
. The firm also attributes regional leadership to Europe, noting that
in 2025, Europe was the largest market with a 42% share of the online gambling market because the region has a mature regulatory framework and adopted digital betting platforms early
.
Taken alone, the number looks precise and authoritative. Taken alongside the rest of the market-research literature, it looks like one point in a wide scatter plot.
Why analyst forecasts disagree by hundreds of billions
Several other research firms published near-identical base-year figures for 2025 — all somewhere between $88 billion and $117 billion — yet their ten-year endpoints diverge wildly. Grand View Research put the market at
USD 88.0 billion in 2025, projected to grow from USD 97.7 billion in 2026 to USD 202.8 billion by 2033, at a CAGR of 11.0% from 2026 to 2033
. Market Research Future, using a similar 2025 base, projects the market
reached USD 116.50 Billion in 2025 and is projected to climb from USD 129.14 Billion in 2026 to USD 326.27 Billion by 2035, expanding at a 10.85% CAGR
. Future Market Insights lands somewhere in between, forecasting the market
to grow from USD 105.5 billion in 2025 to USD 286.4 billion by 2035, at a CAGR of 10.5%
. Expert Market Research is the outlier on the high end, projecting the market
reached an approximate value of USD 210.75 Billion in 2025… to reach almost USD 620.33 Billion by 2035
, roughly two and a half times Precedence’s 2025 starting point for what is nominally the same market. SkyQuest, meanwhile, sizes the market smaller still, at
USD 78.14 Billion in 2024 and poised to grow from USD 87.99 Billion in 2025 to USD 227.36 Billion by 2033, growing at a CAGR of 12.6%
.
| Research firm | ~2025 base value | Forecast endpoint | CAGR |
|---|---|---|---|
| Precedence Research | $88.04B (2025) | $255.44B by 2035 | 11.24% |
| Grand View Research | $88.0B (2025) | $202.8B by 2033 | 11.0% |
| Market Research Future | $116.50B (2025) | $326.27B by 2035 | 10.85% |
| Future Market Insights | $105.5B (2025) | $286.4B by 2035 | 10.5% |
| SkyQuest | $87.99B (2025) | $227.36B by 2033 | 12.6% |
| Expert Market Research | $210.75B (2025) | $620.33B by 2035 | 11.40% |
The gap is not primarily a forecasting-skill problem; it’s a scope problem. Firms differ on what counts as “online gambling” — whether lottery, bingo, and skill-gaming platforms are included, whether offshore and unlicensed revenue is folded into the base figure, and which currency-conversion year is used for historical data. Expert Market Research’s much higher base and endpoint suggest a broader product and geographic scope than Grand View’s narrower estimate. None of this makes any single number wrong; it makes all of them conditional on definitions that most press coverage strips out before the figure reaches a headline.
Ground truth: what 2025-2026 data actually shows
Forecasts are projections built on models. Regulatory and trade-association data is closer to ground truth, and it tells a more nuanced story than any single ten-year CAGR can capture.
US commercial gaming: record revenue, uneven growth
The American Gaming Association reported that
the U.S. commercial casino gaming industry reported record-breaking revenue of more than $78 billion in 2025, driven by growth across the traditional land-based casino, sports betting and internet gaming markets
. Within that total, the digital segments grew far faster than the legacy business:
iGaming reached $10.74 billion in revenue (+27.6 percent) and delivered $2.59 billion in taxes, a 36.9 percent increase
, while
sports wagering revenue reached $16.96bn, climbing 22.8%, while total handle rose 11% to $166.94bn
. Land-based casino gaming, by contrast, is maturing:
land-based casino gaming remained the largest contributor, accounting for $50.94bn in revenue, up 2.3% from the prior year, generating $11.33bn in taxes, an increase of 7.2%
. That pattern — double-digit digital growth layered on top of low-single-digit growth in physical gaming — is consistent with the CAGR assumptions embedded in most of the forecasts above, but it also shows growth concentrated in a handful of already-legal, well-regulated states rather than spread evenly across a “global” market.
Brazil’s regulated market and its leakage problem
Brazil is the forecast era’s most-cited growth market, and its early results are genuinely strong:
the Gross Gaming Revenue for Brazil’s regulated fixed-odds betting market totalled R$20.07 billion in the first half of 2026, a 15.3% rise from the previous year’s level in 2025
. But the same market illustrates why headline growth rates can overstate the addressable opportunity for licensed operators. A study commissioned by Brazil’s own trade body found that
illegal betting accounted for approximately 41% to 51% of the total market… the value of an illicit operation would range from BRL26 billion to BRL39 billion
. In other words, roughly half of Brazilian betting activity may sit entirely outside the licensed revenue base that market-research firms use to build their regional growth assumptions.
The shadow market most forecasts don’t count
This leakage problem is not unique to Brazil, and at a global level it is large enough to call into question what “market size” even means in these reports. A 2025 study from Gaming Compliance International found that
global unregulated online gambling wagering volume reached $5.9 trillion in 2025, with illegal operators accounting for an estimated 78% of worldwide online gaming gross gaming revenue… a 4% increase from $5.7 trillion in 2024
. Put differently:
unregulated gambling operators account for approximately 78% of the global online gaming GGR in 2025, while regulated operators constitute 22%
. The same research found the UK’s offshore market alone had grown sharply, with
the British offshore gambling market reached 16.6 billion pounds ($22 billion) in 2025, up from 5 billion pounds ($6.6 billion) in 2019
.
Most of the ten-year growth forecasts cited above are built primarily from licensed, reported revenue and regulatory filings. If a large and apparently growing share of consumer wagering activity happens outside that regulated perimeter, the $88 billion-to-$620 billion range of “2025 market size” figures may itself understate total consumer spend — while simultaneously overstating the revenue actually available to compliant, licensed operators, since unlicensed sites don’t pay the taxes or follow the responsible-gambling rules that shape a regulator-friendly growth story.
Regional growth drivers through 2035
Despite the disagreement on scale, most forecasts converge on similar directional drivers. Analysts specializing in gambling-sector data see the industry’s total revenue base — across all channels, not just online — pushing past a major threshold this decade, with one report titled
“Global gambling market to exceed $1 trillion GGR by 2030, driven by online channel growth”
. Within that view, online-specific projections put
online betting reaching $248bn and online casino $233bn by 2030… H2 Gambling Capital projects $530bn online GGR by 2030
— a figure that, notably, sits above every 2033-2035 forecast in the comparison table, because it aggregates onshore and offshore revenue rather than licensed revenue alone.
On the regulatory side, growth is not frictionless. Two 2026 developments illustrate the tightening trend running in parallel with expansion:
the Netherlands exceeded EUR 1 billion in gambling taxes in 2024, while Sweden introduced a credit card gambling ban from April 2026 to tighten responsible gambling standards
. Rising taxation and stricter payment rules are recurring features of mature European markets, and they act as a structural drag on the optimistic end of any ten-year CAGR. For a closer look at how individual jurisdictions are diverging on regulatory approach, see our regional deep dives hub and our licensing and jurisdictions coverage.
What the forecast gap means for players and operators
For players, the practical takeaway is that “the industry is growing” does not translate into “the market you play in is getting safer or more competitive at the same pace everywhere.” Growth is concentrated in specific product categories (iGaming and sports betting outgrowing land-based) and specific jurisdictions (US states with mature online frameworks, Brazil’s newly regulated but still leaky market, and established European markets facing new tax and payment restrictions).
For industry professionals and investors, the practical takeaway is to treat any single ten-year CAGR as a scenario, not a forecast in the predictive sense. The six-firm spread documented above — a $400+ billion range around a single “2035 online gambling market” question — is a reminder that market-sizing reports are built on assumptions about product scope, offshore inclusion, and currency base year that rarely survive contact with a headline. Our Future Trends & the 2026-2030 Horizon hub tracks how these assumptions shift as new regulatory data lands, and our demographics research looks at which player cohorts are actually driving the reported growth.
Frequently asked questions
Is the $255 billion figure accurate?
It is one credible estimate among several. Precedence Research’s own model puts 2035 online gambling revenue at $255.44 billion, but competing firms using different scope definitions estimate anywhere from roughly $203 billion to $620 billion for a similar period. Treat it as a plausible scenario rather than a settled fact.
Why do gambling market forecasts vary so much?
Firms differ on which product verticals count as “online gambling,” whether offshore/unlicensed revenue is included in the base figure, and which historical base year and currency assumptions they use. Small definitional differences compound over a ten-year CAGR into very large dollar-figure gaps.
How big is the unregulated online gambling market?
A 2025 study estimated global unregulated online gambling wagering volume at $5.9 trillion, with unlicensed operators capturing roughly 78% of global online gross gaming revenue. This shadow market is largely excluded from licensed-revenue-based forecasts, meaning official market-size figures likely understate total consumer activity.
Which region is expected to grow fastest through 2035?
Most reports still place Europe as the largest market by share, but cite North America and Latin America — Brazil in particular — as the fastest-growing regions due to recent legalization. Brazil’s regulated GGR rose 15.3% year-over-year in H1 2026, though illegal operators still capture a large share of local activity.
Methodology
This analysis draws on published market-research reports, American Gaming Association revenue trackers, Brazilian Ministry of Finance and Secretariat of Prizes and Betting data, and third-party gambling-sector data providers such as H2 Gambling Capital and Gaming Compliance International. GamblScout’s own scoring algorithm does not use these macro forecasts as inputs; it weighs verifiable, operator-level signals — licensing status, payout data, complaint volume, and scraped terms — described in more detail on our scoring system hub and our data scraping methodology hub. Macro forecasts like the ones above are used only as background context for the Macro Economics of iGaming series, never as a substitute for current, sourced operator data.
Gambling involves risk. Only play with money you can afford to lose and use the deposit limits and self-exclusion tools available in your jurisdiction.
