Tanzania is one of the few markets in the region where a punter can settle the licensing question without taking anyone's word for it. The regulator publishes the list, the rules for sports betting are published as a separate instrument, and the tax rates sit in a table on the revenue authority's own site. This section walks through each of those in turn, and says plainly where the published material runs out.
Who Regulates Betting, and Over What Territory
The Gaming Board of Tanzania describes itself as the statutory body that regulates, supervises and controls gaming activities in the country. On its own account it was established in 2003 under the Gaming Act No. 4 of 2003, and the Gaming Act now cited as Cap. 41 consolidated a set of older, fragmented laws — the Pools and Lotteries Act of 1967 and the National Lotteries Act of 1974 — into a single licensing regime.
Mainland Tanzania, Not Zanzibar
On its own about page, under "Current Status", the Board writes that it "continues to serve as the principal regulator of gaming in mainland Tanzania". That geographic limit matters and is easy to miss. The word is the Board's; the inference is ours, and we should be clear about which is which: the Board does not mention Zanzibar anywhere on its site, and we have not checked what applies there. A licence on the Board's list is evidence about the mainland. If Zanzibar is where you are, treat this page as background and check locally. Source: Gaming Board of Tanzania, About Us.
A Licence Is an Annual Thing
The Board states in its own FAQ that the tenure of a licence for all commercial undertakings except the National Lottery is one year and can be renewable, and puts the National Lottery licence at eight years and a gaming employee's licence at two. So a licence is not a permanent badge. A brand that was licensed last season had to be granted a new licence for this one, which is the practical reason to look at a current list rather than an old screenshot of a certificate.
The Two Gaming Taxes on Sports Betting
The revenue authority sets out gaming tax as a table of operation types, and sports betting carries two figures rather than one. Read them as two different taxes on two different people.
Why 25% and 12% Are Not the Same Tax
The 25% falls on the operator's gross gaming revenue — broadly, what it keeps across all its customers. You never see it on a slip. The 12% is the one attached to winnings, and that is the figure worth understanding before you compare a Tanzanian sportsbook with an offshore one. The same table treats other products quite differently, which is the quickest way to see that sports betting is not taxed like the casino tab on the same site.
| Type of operation | On gross gaming revenue | On net winnings |
|---|---|---|
| Sports betting | 25% | 12% |
| Online / internet casino | 25% | 15% |
| Land-based casino | 18% | 13% |
| Virtual games | 10% | 15% |
Two rates run in parallel on every row: one on what the operator keeps, one on winnings. Only the sports-betting row applies to a sports bet. Slot and route operations are charged per machine instead and are not shown here. Read these as published rates, not as a figure to apply to one bet slip. Sources: TRA: Gaming tax.
What TRA Does Not Say on That Page
The base is printed as "net winnings" and is not defined there, and no start date is given for the rates. We are not going to fill either gap with a guess. Only the gaming tax rates published on TRA's gaming-tax page are covered here, and only the sports-betting rows of that table. Casino, lottery, virtual-game and machine operations carry different rates, and other taxes and levies were not reviewed. The page also notes that sports-betting returns are filed monthly. Sources: TRA: Gaming tax.
The Act TRA Cites for Gaming Tax Does Not Appear to Exist
This is a small thing that tells you how carefully to read a tax page. In a note at the foot of its gaming-tax table, TRA writes that the Tax Administration Act provisions on documents, tax liability, collection and recovery, interest, enforcement, objection and appeal apply to gaming tax imposed "under Gaming Tax Act, Cap. 47".
We could not find a Gaming Tax Act, Cap. 47. The phrase appears nowhere in the Gaming Act, Cap. 41, and the only source we found asserting that such an Act exists is that TRA sentence itself. What TRA appears to be paraphrasing is Gaming tax is imposed by the Gaming Act, Cap. 41 itself, in Part V ("Imposition of gaming tax"), which opens at section 33 with "There is hereby imposed a gaming tax on each licensed gaming activity". Section 35(6) then applies the Tax Administration Act to the maintenance of documents, tax liability, collection and recovery, interest, enforcement, objection and appeal "with respect to gaming tax under this Act". In other words the sentence in Cap. 41 says "under this Act", and TRA has rewritten "this Act" as the name of a different one.
So the statute to look up for gaming tax is the Gaming Act, Cap. 41, Part V, and the administrative machinery it points to is the Tax Administration Act. We are not correcting TRA's page — we are telling you what it says and which Act actually carries the provision, so that a search for "Cap. 47" that returns nothing does not leave you thinking you have missed something. Sources: The Gaming Act, Cap. 41 (Revised Edition 2023), Part V, sections 33 and 35(6); TRA: Gaming tax (the page carrying the "Cap. 47" wording).
Tax Is a Bad Reason to Go Offshore
If you want to see what the 12% does to a specific slip rather than in the abstract, our betting calculators take a stake and odds and show the deduction. An unlicensed or offshore site, meanwhile, is outside the Board's supervision, which means the five display duties above do not apply to it, the thirty-day claim rule does not apply to it, and there is no Tanzanian body that licenses it and can therefore take a complaint about it. You also remain responsible for whatever tax is due on your own position. Giving up every one of those protections to avoid a deduction is a poor trade.
Funding an Account From a Wallet
Almost nobody here funds a betting account from a bank account. M-Pesa, Mixx by Yas or Airtel Money is the account, which makes the cashier the part of a bookmaker you will interact with most often, and the part most worth testing with a small amount first. The two mechanics below are the same across the region; our mobile money betting guide covers them for every market on this site.
The Prompt and the Pay Number
There are two mechanics. In the first, you tap deposit in the app and M-Pesa, Mixx by Yas or whichever wallet you use pushes a prompt to your handset asking for your wallet PIN to approve the payment. In the second, you leave the app, open your wallet menu and send money to the bookmaker's pay number, sometimes with a reference. The first is faster and leaves less room for a typo; the second still exists, and is what you fall back on when the prompt does not arrive. The security rule is the same for both, and it is absolute: a PIN prompt you did not trigger yourself is not yours to approve.
When the Money Leaves and the Balance Does Not
Deposits sit between two systems, and either can be slow. If your wallet is debited and the betting balance does not move, do not send a second deposit — that is how people end up chasing two transactions instead of one. Keep the confirmation SMS: it carries the transaction identifier the operator's support will ask for, and it is the only thing that lets them trace the payment rather than guess.
Withdrawing to the Wallet You Deposited From
Many operators require a withdrawal to return to the same method and number the deposit came from, and to a wallet in the account holder's own name. This is a standard anti-money-laundering control rather than an obstacle aimed at you, but it does mean a mismatch between your registration name and your wallet name will surface at the worst possible moment. Fix that before you win, not after.
Where a Complaint Actually Goes
Start with the operator's own complaints process and keep records: the slip, the settlement, the SMS receipts and the dates. If that goes nowhere and the brand is on the Board's list, the Board is the body that licensed it and publishes contact details for enquiries, including a toll-free number and an enquiries email address, on its own site. If the brand is not on the list, there is no Tanzanian licence behind it and no Tanzanian regulator with a hook into it, which is the whole practical point of the check at the top of this page.
Problem Gambling Is Also in the Rules
Rule 14 of The Sports Betting Rules, 2016 puts a duty on the licensee, not just on you. A licensed operator has to maintain a register of players identified as, or reasonably suspected of being, problem or compulsive gamblers; advise and refer those players to the Board; and report the referrals to the Board every month. If betting has stopped being a leisure activity, that route exists by law and you can ask an operator to use it. Our own responsible gambling page lists the practical limits worth setting first.
