Compare betting licences on the headline rate and you will pick the wrong one. A sportsbook running at a 6% margin pays a very different real cost under a tax on stakes than under the same-looking number applied to gross win, and the gap is large enough to decide whether the business works. So rank on the base first. Then look at the obligations casino never carries: integrity reporting, official data, and levies that exist only because the product is sport.
How we ranked: The tax base first, turnover or gross win, then the rate, then the betting-only duties: integrity reporting, sports-body levies and anything changing in the next twelve months. Scores below are from the Gambling Law Index jurisdiction signals (1–5, higher is more operator-favourable) — see the methodology.
Why it ranks here. General Betting Duty is charged on gross win at 15%, and the Gambling Commission runs a named channel for the product's specific risk in the Sports Betting Intelligence Unit. Britain also shows you what a betting-only cost looks like: the Horserace Betting Levy is a statutory payment a casino operator never sees.
Watch out. Remote betting duty rises to 25% from April 2027. If you are modelling multi-year unit economics on today's 15%, you are modelling a business that ends in eighteen months. Build the step change into the plan now.
Why it ranks here. A Type 2 licence is the betting-specific permission, taxed on gaming revenue rather than stakes, and the Authority publishes a dedicated suspicious betting reporting duty, so the integrity obligation is written down rather than implied.
Watch out. The rate is changing within weeks, and almost every comparison page still prints the old one. Legal Notices 84 and 86 of 2026, published on 1 April 2026, bring the Gaming Tax (Amendment) Regulations into force on 1 October 2026, consolidating the gaming tax and the device levy into rates set by service type. Advisers across several Maltese firms read the new schedule as 15% for Type 1 and 10% for Types 2, 3 and 4, against a single 5% before. The Authority's own announcement confirms the instruments and the date but does not publish the figures, so treat the rates as consistently reported rather than regulator-stated, and get them confirmed before you model on them.
Why it ranks here. The charge sits on gross gaming yield and the band structure falls as volume grows, which suits a book whose turnover is large relative to its margin. For a high-volume, thin-margin sportsbook, the base and the taper matter more than any headline number.
Watch out. We could not tie the exact band percentages to a primary rate schedule. They are consistent across advisers but not quoted from statute in anything we opened, so confirm the current bands with the Commission rather than from a comparison table, including ours.
Why it ranks here. A clean 20% levy on gross gaming revenue, plus a named standard covering the risks that belong to betting alone, including insider betting and event manipulation. It is one of the few regimes where the sports-integrity obligation is a specific numbered requirement rather than a general duty.
Watch out. There is no standalone sports betting licence in Ontario, and anyone who tells you there is has misread the structure. You take an internet gaming registration and enter an operating agreement with the provincial agency. It is also one province, not a country.
Why it ranks here. Under the current regime the gaming tax on gross win is zero, which no other licence on this list can say. For a book whose margin is the whole business, a nil rate is a real structural advantage rather than a rounding difference.
Watch out. There is no verified sports-integrity, official-data or levy obligation attached, and for a sportsbook that is a weakness as much as a saving. When a rights holder or a tier-one payment provider asks what your integrity framework is, a nil-obligation licence gives you nothing to point at.
None of this helps if your market is already chosen for you. A book taking bets from Great Britain needs a British licence whatever the tax looks like elsewhere, and the same logic applies market by market. Three traps are worth naming because they are where turnover taxation hides. Spain taxes state-level sports betting pools on a gross income base closer to turnover, at a rate above the 20% of net that gets quoted for other products. Argentina's federal indirect tax is charged on the net value of what a player deposits into the account, not on stakes and not on gross win, so it bites before a single bet is settled and sits on top of whatever the province charges. And Kenya's excise was widely reported as a charge on stakes, when the base has moved to deposits and withdrawals instead. In all three cases the number you were quoted is attached to the wrong base.
FAQ
Is sports betting taxed on turnover or on gross win?
It depends on the jurisdiction, and it is the single most important thing to establish. Gross win taxes a share of what you keep. A turnover tax charges every stake regardless of whether you won it, which at a thin margin can exceed your whole gross profit.
Which betting licence has the lowest tax?
Curacao, where the gaming tax on gross win is nil under the current regime. The trade-off is that it carries no verified sports-integrity, official-data or levy obligation, which is a gap when a rights holder or a payment provider asks what framework you operate under.
Is Malta gaming tax still 5% for sports betting?
Until 30 September 2026. Legal Notices 84 and 86 of 2026 bring new rates into force on 1 October 2026, set by service type. Maltese advisers consistently read Type 2 betting as moving to 10%, though the Authority has not published the figures itself.
What obligations does a sportsbook have that a casino does not?
Integrity reporting on suspicious betting patterns, in some regimes the use of official event data, and levies that exist because the product is sport. Britain charges a statutory horserace betting levy, and Ontario sets a named standard covering insider betting and event manipulation.
Do I need a separate licence for sports betting?
Often yes. Malta issues betting as a Type 2 licence distinct from casino, and most European regimes license betting as its own category. Ontario is the exception that proves the point: there is no separate betting licence, only an internet gaming registration plus an operating agreement.
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