What Is Mega-Sena?
Mega-Sena launched on March 11, 1996, replacing the older Sena Federal lottery. It is operated by Caixa Econômica Federal, a government-owned financial institution that has administered Brazil's federal lotteries since 1961. The name comes from the Italian word "sena" (a set of six numbers), reflecting Brazil's large Italian immigrant population.
Caixa directs lottery revenue to several public programs:
- 43.35% goes to the Fundo de Financiamento ao Estudante do Ensino Superior (FIES) — student financial aid
- Portions fund the national sports program, public security, and health initiatives
- The prize pool receives approximately 46% of total revenue
Mega-Sena is the flagship game in a portfolio that includes Lotofácil, Quina, Lotomania, and several others. But Mega-Sena consistently generates the biggest jackpots and the most public attention in Brazil. Draw results are broadcast live on TV Caixa and Rede TV!, and major jackpots dominate national news coverage much like Powerball does in the US.
The game has produced over 600 jackpot winners since launch, with total prizes exceeding R$40 billion ($8 billion+ USD). It is, by any measure, one of the major lotteries in the world — just one that gets almost zero coverage in English-language media.
How to Play Mega-Sena
Mega-Sena's format is straightforward compared to games like Powerball or EuroMillions that use bonus balls.
Basic rules:
- Pick 6 numbers from a pool of 1 to 60
- Drawings pull 6 numbers from the same 1-60 pool
- No bonus ball, no Powerball-style secondary number
- Match all 6 to win the jackpot (Sena)
Three prize tiers:
- Sena (match 6) — the jackpot. Starts at R$3 million (~$600K USD) and rolls over until won
- Quina (match 5) — typically R$20,000-80,000 (~$4,000-16,000 USD)
- Quadra (match 4) — typically R$500-1,500 (~$100-300 USD)
Flexible number selection: Here is where Mega-Sena gets interesting. You are not limited to picking 6 numbers. You can select 7, 8, 9, or up to 20 numbers on a single ticket. This creates more combinations and dramatically improves your odds — but the ticket price increases accordingly:
- 6 numbers: R$5.00 (~$1 USD) — standard ticket
- 7 numbers: R$35.00 (~$7 USD) — 7x more combinations
- 8 numbers: R$140.00 (~$28 USD) — 28x more combinations
- 9 numbers: R$420.00 (~$84 USD)
- 15 numbers: R$25,025.00 (~$5,005 USD)
- 20 numbers: R$193,800.00 (~$38,760 USD)
Most players stick with the standard 6-number ticket at R$5. The multi-number option is popular with lottery pools (bolões) where groups of coworkers or friends split the cost and the potential prize.
Draw schedule: Mega-Sena draws are held twice weekly, on Wednesday and Saturday at 8:00 PM Brasília time (7:00 PM EST / 4:00 PM PST). Special draws (concursos especiais) occasionally add extra drawings throughout the year.
Mega da Virada: The Biggest Single Draw in the Americas
Every year on December 31st, Caixa holds the Mega da Virada ("Mega of the Turn" — referring to the turn of the year). This is Mega-Sena's equivalent of Spain's El Gordo, and it is the single largest lottery draw in the Americas by guaranteed prize pool.
What makes Mega da Virada different:
- The jackpot does not roll over — it must be won on New Year's Eve
- If nobody matches all 6, the prize rolls down to the Quina (match 5) tier, then Quadra if needed
- The prize pool accumulates from a percentage of every regular Mega-Sena drawing throughout the year
- Tickets are only available for a limited period before December 31st
Recent Mega da Virada jackpots:
- 2023: R$588.8 million (~$120 million USD) — won by a single ticket from Brasília
- 2022: R$541.9 million (~$105 million USD)
- 2021: R$378 million (~$67 million USD)
- 2020: R$325.2 million (~$63 million USD)
The Mega da Virada is a cultural event in Brazil. Families gather to watch the live drawing on New Year's Eve, and ticket lines at Caixa branches and lottery retailers stretch around the block in the days leading up to the draw. In 2023, an estimated 300 million tickets were sold for the single drawing.
The guaranteed-win structure makes Mega da Virada one of the highest expected-value lottery drawings in the world on any given day. Because the full jackpot must be awarded, there is no scenario where the prize pool goes unclaimed.
Mega-Sena Odds: 6x Better Than Powerball
Mega-Sena's odds compare favorably to most major international lotteries.
Jackpot (Sena — match 6 of 6): 1 in 50,063,860
How this compares:
- US Powerball: 1 in 292,201,338 — Mega-Sena is 5.8x better
- US Mega Millions: 1 in 302,575,350 — Mega-Sena is 6x better
- EuroMillions: 1 in 139,838,160 — Mega-Sena is 2.8x better
- Italy SuperEnalotto: 1 in 622,614,630 — Mega-Sena is 12.4x better
- Japan Loto 6: 1 in 6,096,454 — Loto 6 is 8.2x better than Mega-Sena
Secondary prize odds:
- Quina (match 5): 1 in 154,518 — roughly $4,000-16,000 USD
- Quadra (match 4): 1 in 2,332 — roughly $100-300 USD
The Quadra odds are particularly notable. At 1 in 2,332, a regular Mega-Sena player matching 4 numbers is a realistic event over a year of play (about 104 tickets). The Quadra prize typically covers the cost of 100-300 tickets, making it an effective loss-mitigation tier.
Overall probability of winning any prize: approximately 1 in 2,298. That means roughly 1 in every 2,300 tickets wins something. Not great in absolute terms, but the 3-tier simplicity (compared to Powerball's 9 prize tiers with Power Play) makes the prize distribution more concentrated at the top.
Ticket Cost and Tax on Winnings
Mega-Sena is one of the most affordable major lotteries in the world.
Ticket price: R$5.00 for a standard 6-number ticket, which is approximately $1.00 USD at current exchange rates. This is cheaper than Powerball ($2), EuroMillions (€2.50), and comparable to Japan Loto 6 (¥200 / ~$1.35).
Tax on winnings: Brazil applies a flat 13.8% federal tax on all lottery prizes. This is deducted at the source — you receive your prize with the tax already paid. There is no additional state or municipal tax on lottery winnings in Brazil.
Here is what that means in practice:
- R$10 million jackpot → R$8,620,000 after tax (~$1.72 million USD)
- R$100 million jackpot → R$86,200,000 after tax (~$17.24 million USD)
- R$500 million Mega da Virada → R$431,000,000 after tax (~$86.2 million USD)
How 13.8% compares globally:
- United States: 24-37% federal + 0-13% state = effectively 24-50%
- Spain: 20% above €40,000
- Italy: 20% above €500
- Japan: 0%
- Canada: 0%
- UK: 0%
- Brazil: 13.8% flat
Brazil's flat 13.8% rate is among the most favorable in the world for a country that taxes lottery winnings at all. There are no progressive brackets, no state-level additions, and no complicated withholding calculations. The simplicity is refreshing compared to the US system where your effective tax rate depends on your state, your other income, and whether you take the lump sum.
How to Play Mega-Sena from Outside Brazil
If you are not physically in Brazil, you have two options for playing Mega-Sena.
Option 1: International lottery courier service theLotter offers Mega-Sena tickets to players in most countries worldwide. Here is how the process works:
- You select your 6 numbers (or use Quick Pick) on theLotter's website or app
- theLotter's local agent in Brazil purchases an official Mega-Sena ticket from a Caixa-authorized retailer
- You receive a scanned copy of your physical ticket as proof of purchase
- If you win, theLotter collects the prize (after Brazil's 13.8% tax) and transfers it to your account
- For jackpot wins, you may need to travel to Brazil to claim in person — theLotter coordinates logistics
Courier fees typically add a markup to the base ticket price. Expect to pay $3-5 USD per Mega-Sena ticket through a courier versus the ~$1 USD face value. For the Mega da Virada special drawing, demand is high and tickets may sell out early on the platform.
Option 2: If you are visiting Brazil You can buy tickets in person at any Caixa lottery retailer (lotérica). There are approximately 13,000 lotéricas across Brazil. No Brazilian ID is required to purchase — only to claim prizes above a certain threshold.
Critical warning for US residents: Federal US law (18 U.S.C. § 1301-1307) prohibits importing or transporting foreign lottery tickets into the United States. US-based players cannot legally purchase Mega-Sena tickets online through international courier services. theLotter and similar services explicitly restrict US residents from buying non-US lottery tickets. If you are in the US and want to play the lottery online, your legal options are domestic: Powerball, Mega Millions, and state lotteries via authorized couriers. See our lottery services hub for details.
Biggest Mega-Sena Winners in History
Mega-Sena has produced some enormous jackpots, particularly through the Mega da Virada special drawing.
Top 10 largest Mega-Sena prizes (all drawings):
- R$588.8 million — Mega da Virada 2023. Single winner from the Federal District (Brasília).
- R$541.9 million — Mega da Virada 2022. Split between two winners.
- R$378.1 million — Mega da Virada 2021. Split between two winners from São Paulo and Minas Gerais.
- R$325.2 million — Mega da Virada 2020. Split between six winners.
- R$317.8 million — Mega da Virada 2019. Split between two winners.
- R$306.7 million — Mega da Virada 2017. Split between 17 winners — the most ever for a Virada drawing.
- R$289.4 million — Regular drawing, May 2023. Single winner from São Paulo.
- R$244.7 million — Regular drawing, November 2022. Single winner from Minas Gerais.
- R$211.6 million — Mega da Virada 2018. Single winner from Rio de Janeiro.
- R$205.3 million — Regular drawing, February 2024. Single winner from Bahia.
A few patterns stand out. The Mega da Virada dominates the top of this list because its guaranteed-payout structure ensures massive prize pools every year. Regular drawings occasionally break into the top 10 when rollovers extend for many weeks.
Brazil does not publicize winner identities by default. Winners can choose to remain anonymous, and most do. Caixa only releases the state and city where the winning ticket was purchased. This is a significant privacy advantage over the United States, where many states require public disclosure of lottery winners.
Unclaimed prizes: Winners have 90 days from the drawing date to claim their prize. After 90 days, unclaimed prizes are transferred to FIES (the student financial aid program). In 2023, approximately R$380 million in lottery prizes went unclaimed across all Caixa lottery games — a reminder to check your numbers.
Mega-Sena vs. Other Major Lotteries: Quick Comparison
How does Mega-Sena stack up against the lotteries most players are familiar with?
Mega-Sena vs. US Powerball:
- Odds: Mega-Sena 6x better (1 in 50M vs 1 in 292M)
- Max jackpots: Powerball far larger ($2B+ vs ~$120M USD)
- Tax: Mega-Sena far lower (13.8% vs 37%+ in US)
- Ticket cost: Mega-Sena cheaper ($1 vs $2)
- Verdict: Mega-Sena wins on pure expected value per dollar; Powerball wins on maximum possible prize
Mega-Sena vs. EuroMillions:
- Odds: Mega-Sena 2.8x better (1 in 50M vs 1 in 139M)
- Max jackpots: EuroMillions larger (€250M cap vs ~R$600M / ~$120M USD)
- Tax: EuroMillions can be 0% (UK, France residents) vs 13.8%
- Verdict: Depends on your tax residency. EuroMillions in a tax-free country beats Mega-Sena on after-tax value for large prizes
Mega-Sena vs. Japan Loto 6:
- Odds: Loto 6 is 8x better (1 in 6M vs 1 in 50M)
- Max jackpots: Mega-Sena much larger ($120M+ vs ~$2.7M)
- Tax: Loto 6 wins (0% vs 13.8%)
- Verdict: Loto 6 is better for odds-optimized play; Mega-Sena is better if you want a shot at a genuinely large prize
Mega-Sena occupies a strong middle ground — better odds than the mega-lotteries (Powerball, EuroMillions), bigger prizes than the high-odds games (Loto 6, Canada 6/49), and a moderate tax rate that does not gut your winnings. It deserves a place in any serious lottery player's rotation.
For more analysis, visit our Mega-Sena country page, browse the full international lottery hub, or run your own numbers with the EV calculator. And check out our Brazil lottery overview for details on Lotofácil, Quina, and other Caixa games.
