Can an Ontario online casino legally change its terms and conditions after I have already deposited money?

Yes — operators registered in Ontario's regulated market can update their terms and conditions after you've deposited. But they can't do it quietly, and the changes can't override the rules the AGCO has already set. Here's how it actually works.

What the AGCO's standards require when terms change

Under the Registrar's Standards for Internet Gaming, players must acknowledge and accept any subsequent material changes to the contract governing their account when logging in — and at all times, the terms of that contract must comply with the Standards and Requirements and applicable Ontario law. That's the key phrase: they can change terms, but only within the ceiling the regulator has set.

So the process looks like this: the operator updates its terms, and the next time you log in, you'll be prompted to review and accept the changes before you can play. You cannot simply be bound by new terms that were slipped in without your acknowledgment. If you don't accept, you can't access your account to play — though your funds remain yours to withdraw.

What operators cannot change, regardless of what their terms say

This is the part that matters most. Certain player protections are baked into the AGCO's standards and sit above any individual operator's contract. A terms update cannot strip these away:

• A gaming limit you've set cannot be relaxed by an operator acting unilaterally, without instructions from you.
• If you ask to relax or remove a limit you previously set yourself, that change only takes effect after a mandatory cooling-off period of at least 24 hours.
• Rules of play cannot be changed during a game session unless you are made aware of the change and no bets have been placed.
• Player complaints and disputes must be addressed in a timely, fair, and transparent manner — and disputes must be resolved under Ontario and Canadian law.
• Players must be informed clearly and specifically of all rules and restrictions regarding deposits, withdrawals, and access to funds.

In short, an operator can adjust how their product works, but they cannot use a terms update to, say, quietly change withdrawal rules in a way that contradicts the AGCO's standards, or unilaterally loosen a spending limit you've set for yourself.

Practical steps if you're unhappy with a change

Read the updated terms before clicking accept — you're entitled to that time. If a change seems to conflict with what you originally agreed to, or you think it violates the AGCO's standards, you have a formal path: operators are required to have a mechanism for players to contact them with complaints, and the AGCO Registrar must be notified of such issues in accordance with the notification matrix. You can also escalate directly to the AGCO if you believe a registered operator isn't complying with its obligations.

To confirm you're dealing with a registered operator in the first place, look for both the iGaming Ontario and BetGuard logos on the site — their presence signals the site is managed by iGaming Ontario and regulated by the AGCO. The full list of registered operators is on the iGaming Ontario registry at igamingontario.ca.

One last thing: if gambling ever starts to feel less like a choice, ConnexOntario (1-866-531-2600) is available 24/7, and anyone 19+ in Ontario can self-exclude from every regulated site at once through BetGuard at betguard.ca.