The short answer
Every commercial email or text needs your business name, a mailing address, a working phone number, email or web address, and an unsubscribe. The unsubscribe has to be free and easy, keep working for 60 days, and take effect within 10 business days.
Consent gets you permission to send. These rules decide what the message must contain once you do. They are the easy part of CASL, which is exactly why getting them wrong is so annoying. It is the legal equivalent of locking yourself out of the car with the engine running.
Identification: who sent this, and how to reach them
Section 6(2) of the Act and section 2 of the CRTC regulations (SOR/2012-36) require:
- The name you carry on business under, or your own name if you do not use a business name.
- If you send on behalf of someone else, their name too, and a statement of who is sending for whom.
- A mailing address. Always.
- One of: a phone number that reaches a person or a voicemail, an email address, or a web address.
The contact details must stay valid for at least 60 days after the message is sent (section 6(3)), and all of it has to be set out clearly and prominently (SOR/2012-36, section 3). Grey six-point text under a gif of a dancing taco is a bold interpretation of "prominently".
Agencies and freelancers sending for a client: the "on behalf of" rule is yours. Name both businesses.
The unsubscribe rules
Section 11 of the Act says the unsubscribe mechanism must:
- Let the person opt out at no cost.
- Use the same electronic means the message came by, or another electronic means if that is not practicable.
- Give an email address or a web link where the request can be sent.
- Stay valid for at least 60 days after the message is sent.
- Be honoured without delay, and no later than 10 business days, with no further action from the person.
The regulations add that it must be readily performed. A login screen, a survey about why they are leaving, or a page that asks them to type their email address and solve a puzzle about traffic lights all make it harder than it needs to be.
This is the part regulators have actually cited. When Gap agreed to pay $200,000 in 2021, the CRTC said its messages did not consistently include an unsubscribe mechanism, or one that could easily be performed. More in the fines guide.
Swap the brackets for your details. The first line is not required, but it saves you a lot of "who are you" replies.
You are receiving this because [you signed up at our website / you are a customer of ours]. [Business name] · [Street address, City, Province, Postal code] [Phone that reaches a person or voicemail] · [hello@yourbusiness.ca] · [yourbusiness.ca] Unsubscribe: [link]. We process every request within 10 business days.
Text messages: same law, less room
CASL defines an electronic message to include text messages, and a telephone account counts as an electronic address. So promotional texts need consent, identification and an unsubscribe, just like email.
The space problem has an official answer. When it is not practicable to include the identification details and the unsubscribe in the message itself, section 2(2) of SOR/2012-36 lets you put them on a web page, as long as the message has a clear and prominent link to it and the page is free to reach.
[Business name]: [your message]. Info & opt out: [short link to a page with your name, address, contact and unsubscribe]. Reply STOP to unsubscribe.
Phishing texts are the CRTC's business too. In 2023 it issued a $40,000 penalty to an individual for more than 30,000 of them.
Automations and AI follow-ups
Automated sequences are where CASL problems hide, because nobody reads the 14th email in a sequence they set up two years ago. A few things to check:
- A reply to someone's own inquiry is exempt. The third follow-up a week later that pitches a package is a commercial message, and it needs consent. An inquiry gives you six months of implied consent, not forever.
- Unsubscribes have to reach every system that sends. Someone who opts out of the newsletter should not keep getting promotional texts from the booking tool.
- Messages written or sent by an AI tool are still your messages. The Act also makes businesses liable for what their employees and agents send.
- A live phone conversation, including one with your receptionist, sits outside these message rules. A follow-up text after the call does not.
Messages that do not need consent, but still need the details
Under section 6(6) of the Act, consent is not needed when the message consists solely of:
- A quote or estimate the person asked for.
- Facilitating, completing or confirming a transaction they agreed to.
- Warranty, product recall, safety or security information.
- Factual information about their subscription, membership, account or loan.
- Information about an employment relationship or benefit plan they are part of.
- Delivering a product, update or upgrade they are entitled to.
The identification and unsubscribe rules still apply to these. And "solely" means solely. Add a promotion and the message becomes commercial in the ordinary way.
Questions about CASL email and text rules
What must be in a CASL compliant email?
Your business name, the name of anyone you are sending on behalf of, a mailing address, and one of a phone number that reaches a person or voicemail, an email address or a web address. Plus a working unsubscribe link or address. All of it has to be clear and prominent.
How long do I have to process an unsubscribe under CASL?
Without delay, and no later than 10 business days after the person sends the request. They should not have to do anything else to make it stick.
How long must an unsubscribe link keep working?
At least 60 days after the message is sent. The contact information in the message must also stay valid for at least 60 days.
Do order confirmations and receipts need consent under CASL?
No consent is needed for a message that only confirms or completes a transaction the person already agreed to, gives a quote they asked for, or delivers warranty, recall or safety information. The identification and unsubscribe rules still apply to those messages.
How do I fit the CASL details into a text message?
The regulations allow the identification details and unsubscribe mechanism to sit on a web page when it is not practicable to include them in the message, as long as the message has a clear, prominent link to that page and the page is free to reach.
Official sources
Checked on November 11, 2026: CASL sections 1, 6, 11, 53, and SOR/2012-36 sections 2 and 3.
Justice Laws Website (Government of Canada)
- Canada's Anti-Spam Legislation, S.C. 2010, c. 23 (full text) (opens in a new tab)
- Electronic Commerce Protection Regulations (CRTC), SOR/2012-36 (opens in a new tab)
- Electronic Commerce Protection Regulations, SOR/2013-221 (opens in a new tab)
- CASL amendment history and previous versions (opens in a new tab)
CRTC enforcement news (canada.ca)
- Gap Inc. agrees to pay $200,000 (December 8, 2021) (opens in a new tab)
- OneClass agrees to pay $100,000 (September 30, 2020) (opens in a new tab)
- Largest ever penalty to an individual, $75,000 (March 29, 2021) (opens in a new tab)
- Penalty after phishing text investigation, $40,000 (October 30, 2023) (opens in a new tab)
- Spam news and enforcement actions (ISED) (opens in a new tab)
Follow-ups that stop when people ask them to
We connect your forms, booking tool, email and texts so one unsubscribe reaches all of them, and so your automated follow-ups match what people agreed to.
See AI and workflow automationContinue the CASL Guide
CASL Consent Checker and Compliance Checklist
Answer two questions to see whether you can email or text someone, and until when. Plus a 13-point checklist tied to the law.
CASL Consent: Express vs Implied, and When It Expires
The two kinds of consent, the two-year and six-month clocks, business cards, referrals, pre-checked boxes and wording you can copy.
CASL Fines and Penalties: What the Law Says and What Has Happened
Penalties up to $1 million for individuals and $10 million for businesses, how amounts are set, real CRTC cases and director liability.