The Guide to SMS Marketing for Small Business - Klaviyo UK
2026-03-10 21:46 Diff

In order to send SMS messages as a business, you must meet certain compliance standards.

Here are some of the most important compliance regulations to keep in mind:

Telephone Consumer Protection Act (TCPA):This US law restricts telemarketing calls and auto-dialing systems or pre-recorded voice messages, and enforces company-specific do-not-call lists.

Telecommunications and Internet Association (CTIA): The CTIA has developed a set of best practices for consumer and non-consumer messages via wireless providers protecting US consumers from unwanted messages.

General Data Protection Regulation (GDPR): The GDPR applies to anyone processing the data of EU citizens or residents, or offering goods and services to those in the EU, and it outlines how companies can process, collect, and use personal data. It stipulates that those handling personal data must collect and process only the data absolutely necessary, keep it accurate and up to date, and maintain confidentiality, along with more regulations.

Privacy and Electronic Communications Regulations (PECR): Like GDPR, the PECR is another set of guidelines from the UK that protect individuals with rules on marketing calls, texts, emails, and faxes. To comply with PECR, brands need to send only solicited marketing messages, get consent via opt-in, and maintain confidentiality with collected data. 

Canada’s Anti-Spam Legislation (CASL):CASL is a law that protects consumers against spam and cyber threats, and prevents businesses from sending false or misleading information, harvesting electronic addresses without permission, and illegally collecting personal information.

The Spam Act: Australia’s Spam Act similarly prohibits unsolicited electronic messages, requires consumers to opt-in to marketing messages, and requires unsubscribe links in commercial electronic messages.

Unsolicited Electronic Messages Act (UEMA): New Zealand’s UEMA protects consumers from spam messages, and applies to commercial electronic messages—those messages promoting goods, services, or a business. It requires that companies obtain consent, provide identification information, and offer an opt-out or unsubscribe.

Check out our complete guide to SMS compliance to learn how to comply with the 3 main areas of SMS: collecting and removing consent, creating content, and sending messages. With Klaviyo B2C CRM, which has built-in SMS compliance features, you can confidently send messages to 19 countries—ideal for small businesses with global ambitions.