SMS Marketing Laws and Regulations in the USA: Complete Compliance Guide for 2026

SMS marketing is heavily regulated in the United States. Understanding and following these laws isn't optional — violations can result in fines of $500 to $1,500 per message. Here's your complete compliance guide for 2026.

TCPA (Telephone Consumer Protection Act)

The TCPA is the primary federal law governing SMS marketing. Key requirements:

Consent Requirements

• Express written consent is required before sending marketing texts
• Consent must be clear, unambiguous, and documented
• Pre-checked boxes do NOT constitute valid consent
• Consent cannot be a condition of purchase

What Counts as Valid Consent

• Web form with clear disclosure and checkbox
• Text-to-join keyword with automatic confirmation
• Paper form with signature
• Verbal consent (recorded)

10DLC Requirements

10DLC (10-Digit Long Code) is now required for business SMS in the US. This involves:

Brand Registration

• Register your business with The Campaign Registry
• Provide business details (EIN, address, website)
• Receive a trust score based on verification

Campaign Registration

• Register each SMS use case separately
• Describe message content and frequency
• Provide sample messages
• Show opt-in/opt-out flows

Required Message Elements

Every SMS campaign must include:

• Business identification: Who is sending the message
• Opt-out instructions: "Reply STOP to unsubscribe"
• Help instructions: "Reply HELP for help" (recommended)

Quiet Hours

While not federally mandated, best practice is to only send messages between:

• 8:00 AM and 9:00 PM recipient local time
• Some states have stricter requirements

State-Specific Laws

Several states have additional SMS marketing regulations:

California (CCPA)

• Consumers can request to know what data you have
• Right to deletion of personal information
• Right to opt-out of data sales

Florida

• Written consent required
• 24-hour opt-out processing requirement

Penalties for Non-Compliance

• $500 per unsolicited message
• $1,500 per willful violation
• Class action lawsuits are common
• Carrier blocking and filtering

Best Practices for Compliance

1. Always get explicit opt-in before texting
2. Keep records of all consent
3. Honor opt-outs immediately
4. Include business name and opt-out in every message
5. Register for 10DLC before sending
6. Use a compliant platform like Messaro

Messaro handles 10DLC registration and compliance automatically, so you can focus on your campaigns without worrying about legal requirements.