Gambling Regulatory Deadlines to Watch in December 2025

Each month, we leverage data from our gambling regulatory updates to bring you a glimpse of the key response deadlines and legislation effective dates coming up, so you can plan and take action around some of the most important regulatory developments unfolding right now.

In December, there are 15 regulatory deadlines on the horizon — with 7 key consultation periods coming to an end and requiring a response, and 8 actionable deadlines to be aware of coming into effect.

What are the regulatory deadlines to watch in December?

Argentina

On November 3, 2025, Argentina's Ministry of Economy and Secretariat of Industry and Commerce, published new regulations imposing restrictions on the advertising of online gambling.

Resolution 446/2025, sets out new obligations for operators to follow when advertising their content through TV, social media, radio, or through social media influencers, the obligations are as follows:

• It is mandatory for advertisements to display  "Compulsive gambling is harmful to your health" and an "18+" age rating.
• These messages must occupy the bottom of the screen on digital formats, with a minimum font size of 4 millimeters.
• Advertisements must also only contain essential information, and not be oversaturated with content.
• For audiovisual advertisements, the messages must be on the screen for at least 5 seconds, and must be broadcast clearly without any background music when advertised through the radio.
• Social media influencers will also be under scrutiny. There is a reporting channel to be established that would collect reports on influencers who are not following these regulations, or promoting illegal gambling.

These regulations will enter into effect 30 days after its publication, thus on December 2, 2025.

Brazil

On November 10, 2025, Brazil's Secretariat of Prizes and Bets under the Ministry of Finance (SPA-MF) published regulations regarding the placement of bets by self-excluded persons. 

Normative Instruction No. 31 establishes systems that must be in place to prevent bets being placed by self-excluded people. Ordinance No. 2,579/2025 updates existent self-exclusion rules. Of note, under Normative Instruction No. 31: 

• Operators must consult the Betting Management Platform (SIGAP) when a person first logs in or first registers to their platform to determine if the patron is present on the self-exclusion list.
• This check must be conducted when the user logs in, and periodically every 15 days.
• To conduct SIGAP checks, operators must utilize the user's Brazilian taxation identification number (CPF). Two results will be displayed "Blocked - Centralized Self-Exclusion" or "Not Blocked".
• For users who already have accounts but register as "Blocked", operators must initiate closure of accounts within three days of notifying SIGAP and block the processing of any new bets.
• The operator must notify the user regarding the user's blocked status through email, or message within one day and notify the user that they have two days to withdraw all funds.
• If the user does not voluntarily withdraw their funds, the operator has two days to return all funds to the user under their registered bank account.
• All communication must contain dates, times, and content, and must be maintained for five years.

Furthermore, under Ordinance No. 2,579/2025:

• Operators must provide additional responsible gambling tools and collect additional data from users such as gender identification, full address, country of residence, telephone number, email, payment account details, betting limits, and scanned copy of a valid photo ID.
• Any funds not returned by the operator to the user will be used for social benefit programs.
• Operators are not permitted to advertise or send direct and targeted communications to users notifying them that they have been removed from the exclusion program.

Operators who do not comply with either of these regulations will be sanctioned, and both regulations come into effect immediately. However, operators have 90 days to make required changes to their systems, as outlined in Ordinance No. 2,579, and 30 days to make required changes outlined in Normative Instruction No. 31.

Michigan

On November 6, 2025, the Michigan Gaming Control Board (MGCB) announced it will hold a public hearing to receive public comments on proposed changes to casino gaming rules.

The proposed amendments revise definitions; increase monetary thresholds for reporting certain transactions by casino licensees; rescind rules that are duplicative; anticipate multi-multi-jurisdictional wide area progressives; remove executive director responsibility to issue a notice of denial when the MGCB has taken an action to deny or revoke a license; include a requirement that casino licensees remove disassociated person designation from the casino system once a person is removed from the disassociated persons list; and any other changes that might be necessary.

The proposed rules will take effect immediately after filing with the secretary of state. The hearing will be held on December 29, 2025 at 9:00 AM. Comments on the proposed rules may be made at the hearing, by mail, or by electronic mail at the following addresses until December 29, 2025 at 5:00 PM: John McKeown, Michigan Gaming Control Board, P.O. Box 30786, Lansing, MI 48909 MGCB-Rules@michigan.gov.

‍Slovakia

On October 9, 2025, the “Law amending certain laws for the consolidation of public finances”, which also amends the Gambling Law, was published in the Slovak official gazette. 

The law introduces the following changes:

• Starting from January 1, 2026, the procedure for website and payment blocking is simplified as internet service providers and payment processors will have to rely directly on the blacklist issued by the gambling regulator. The requirement of obtaining a previous court order for blocking illegal operators has been repealed.
• The enforcement powers of the gambling authority are amended, the procedure for inclusion in the blacklist organised by the gambling authority is detailed and forfeiture of property is introduced as a new sanction.
• Holders of a mixed licence for casinos and online casinos must pay a 30 percent tax on the fee received from online players if players play against each other and a 30 percent tax of the proceeds for online casino games.
• Holders of a mixed licence for slot machines, video game terminals, technical devices operated directly by players and other technical devices located in gambling rooms and online casinos must pay a 30 percent tax of the proceeds for online casino games and a 30 percent tax of the fee collected from players for online casino games played against each other.
• Holders of a licence for fixed-odds betting in gaming rooms, betting shop and in an online gaming room, as well as holders of a licence for fixed-odds betting in an online gambling house must pay 30 percent of the proceeds, while the proceeds for the purposes of the levy may not be less than 11 percent of the winnings paid to players in the same calendar month and 30 percent of the commission for operating a gambling game, if players play against each other.
• Holders of an online casino licence must pay 30 percent of the proceeds to the state budget and 30 percent of the fee collected from players who play against each other.
• Holders of a licence for casinos and online casino games must pay a tax for offering games on technical devices operated directly by players in a casino as stipulated in Article 71(1)(n) of the Gambling Act.
• Specific gambling taxes as detailed in the law are to be regulated by means of secondary legislation adopted by the Slovak government. 

The law enters into force on November 1, 2025, with the exception of the increase in gambling taxation that becomes effective on December 1, 2025.

Victoria

On November 20, 2025 the Victorian Gambling and Casino Control Commission (VGCCC) launched a consultation on Electronic Gaming Machine (EGM) application improvements.

Specifically, the VGCCC’s EGM application process for new premises approvals under section 3.3.6 and EGM increase applications under section 3.4.17 of the Gambling Regulation Act 2003 is undergoing a significant uplift to align it with modern expectations, recent legislative change, and the VGCCC's strengthened mandate to minimise gambling harm.

The VGCCC also says the process intends to reduce bureaucracy by ensuring applicants focus on priority factors that commonly determine the suitability of an application. The VGCCC has invited feedback from all stakeholders, including but not limited to industry participants, councils, experts, and community organisations. The consultation period will end on December 19, 2025 and more details and information on how to participate can be found on Engage Victoria’s website.

We’ve only shown you a snapshot of December’s deadlines.

Want to see them all? Book a demo with a member of our team, who can show you the full Regulatory Deadlines Calendar for this month.