The Short Answer: Unsolicited Sales Texts Are Illegal

You spent years building a customer list. One well-meaning text to the wrong person could cost you $500 — and the same text sent to a thousand customers could cost you $500,000. That is the reality of texting sales messages in the United States, and most service business owners don't realize how strict the rules are until the complaint arrives.

The short answer: yes, unsolicited sales texts are illegal. Under the Telephone Consumer Protection Act (TCPA), as interpreted by the FCC's rules on robocalls and robotexts, businesses cannot send promotional text messages without prior express written consent. The FCC has stated this plainly: text messages sent to a mobile phone using an autodialer are banned unless the recipient previously gave consent or the message is for emergency purposes.

Here is where most owners get tripped up. They assume a past relationship means permission. It does not. According to the FCC's own consumer guidance, an established business relationship does not exempt you from consent requirements, and the Do Not Call Registry is not the operative rule for texts — consent rules apply even if the number is not on the registry. A customer who paid you for an HVAC repair last spring, a patient who visited your clinic twice, a client whose quote never closed: none of them can legally receive a promotional text from you without documented written consent first.

The stakes are not theoretical. Legal analysis of TCPA SMS compliance puts the penalty at $500 per violating text, rising to $1,500 for willful violations. And because a text campaign may reach thousands of numbers, these cases are perfectly suited for class action certification — one improper campaign can snowball into multimillion-dollar liability. A consumer does not even need to prove actual damages; receiving a single noncompliant text is enough to establish standing and win a judgment.

Three misconceptions cause the most trouble:

• "They're my customer, so I can text them." A past purchase is not consent — and consent cannot be made a condition of buying.
• "Their number isn't on the Do Not Call Registry." Registry status is irrelevant for texts; FCC consent rules apply regardless.
• "I got their number from a job quote." How you obtained the number matters far less than whether they agreed in writing to receive marketing texts.

This is exactly why a permission-based approach matters for reactivation outreach. Services like CallMyCustomers operate on the principle that every campaign message is approved and grounded in real customer relationships with documented consent and immediate opt-out handling — because the only safe foundation for a sales text is consent you can prove. As compliance experts put it, when it comes to commercial text messages, there are no shortcuts: prior express written consent is the only way to go.

What the Law Actually Requires: Consent, Disclosure, and Penalties

One unsolicited sales text can cost you up to $1,500 — and a single campaign to thousands of numbers multiplies that liability fast. Here is what federal law actually demands before you hit send on any promotional message.

Under the TCPA, commercial texts require prior express written consent (PEWC) before sending, with no exceptions for established business relationships or Do Not Call Registry status, according to FCC consumer guidance. Consent can be collected on paper or electronically, including website forms or telephone keypress — but informational texts may be consented orally while sales texts cannot.

Valid opt-in is not just a checkbox. As legal analysis from Purdue Global Law School explains, the opt-in must clearly disclose what the recipient is signing up for. Failing to tell users what they are enrolling in invalidates consent entirely. A compliant opt-in includes:

• The program or business name the messages come from
• The expected message frequency
• A warning that "message and data rates may apply"
• Direct links to Terms of Service and Privacy Policy

Consent also cannot be a condition of purchase. You cannot require customers to agree to marketing texts in order to buy from you — the agreement must be genuinely voluntary. This is why permission-based reactivation services like CallMyCustomers treat documented opt-in as the foundation of every campaign, not an afterthought.

The financial stakes are steep. The TCPA carries a $500 penalty per text, rising to $1,500 for willful violations — and continuing to text after someone replies STOP counts as willful. A recipient does not need to prove actual damages; receiving one noncompliant text is enough to establish standing. Because campaigns go to thousands of numbers, these cases are, per compliance experts, "perfectly suited for class action certification."

State laws stack on top of federal exposure. The TCPA does not supersede state statutes, so plaintiffs can sue under both simultaneously. Florida, Maryland, and Oklahoma mini-TCPAs impose immediate statutory liability per text without a signed opt-in, Connecticut allows penalties up to $20,000 per infraction, and Texas adds up to $5,000 per noncompliant text under its Deceptive Trade Practices Act.

The compliance takeaway is simple: get clear, documented, unconditioned written consent first — then build your outreach on top of it.

The Compliance Traps That Catch Service Businesses

Even businesses that intend to follow the rules get caught in compliance traps that turn a well-meaning campaign into a class-action target. The difference between a compliant program and a lawsuit often comes down to operational discipline, not intent.

Texting after a STOP request is the single most dangerous mistake. The FCC treats continued messaging after opt-out as a willful violation, triggering penalties up to $1,500 per text under TCPA guidelines. Missing opt-out keywords — STOP, END, CANCEL, UNSUBSCRIBE, QUIT — in the initial message or failing to process them immediately creates the same exposure. One confirmation text is allowed within five minutes, but it must contain zero promotional content per current opt-out rules.

State overlay rules add another layer of risk. Florida and Oklahoma cap marketing texts at three on the same subject within a rolling 24-hour period under their mini-TCPAs. Connecticut imposes penalties up to $20,000 per infraction, while Texas levies up to $5,000 per noncompliant text under its Deceptive Trade Practices Act and requires a $200 registration fee plus a $10,000 bond unless you only text consumers with documented consent per Texas telemarketing statutes. California mandates that every commercial text include the business name and a clear advertisement indicator. Virginia requires opt-out numbers to remain on a suppression list for 10 years under Virginia's retention law.

The regulatory landscape is shifting. The FCC has proposed rule changes that would:

• Shorten the opt-out honor window from the current 10 business days
• Mandate two-way texting capabilities so recipients can reply directly
• Require a "revoke all" option covering affiliates and separate business lines
• Clarify how revocation requests apply across business divisions

per the FCC's NPRM.

These traps are why CallMyCustomers builds consent verification and opt-out processing into every campaign before the first message sends. The owner approves every script and offer, and replies route directly into the client's booking process — so compliance isn't a checklist, it's the operating model.

How to Text Customers Legally — and Book Repeat Work Doing It

The good news is that texting customers legally isn't complicated — it just requires building consent into the way you already do business. For service companies that thrive on repeat work, the same rules that protect you from TCPA liability also happen to make your messages better received.

Start with explicit written consent at the point of booking. Under the TCPA, commercial texts require prior express written consent, and that consent cannot be a condition of making a purchase. At opt-in, you must clearly disclose the program name, expected message frequency, a note that message and data rates may apply, and links to your Terms of Service and Privacy Policy — failing to tell users what they are signing up for invalidates consent entirely.

Once consent is collected, treat recordkeeping as part of the system. Maintain a record of how, when, and with what exact language each customer opted in, and keep a suppression list so opted-out numbers never get contacted again. This matters more than ever: continued texting after a STOP request is viewed as a willful violation, and some states go further — Virginia requires opt-out numbers to stay on a suppression list for 10 years.

Timing matters too. Send marketing texts only between 8 a.m. and 9 p.m. in the recipient's local time, and check for stricter state windows if you operate across state lines. California, for example, requires all commercial texts to include your business name and a clear indication that the message is an advertisement.

Then comes the part that turns compliance into revenue: give customers a genuine reason to hear from you. A 2025 survey found that 84% of consumers have opted in to business texts — people want these messages when they're useful. That's why the strongest reactivation texts lead with value:

• Seasonal and service reminders timed to the customer's maintenance cycle
• Follow-ups on old quotes and estimates that never became jobs
• Renewal and membership nudges sent before a lapse, not after
• Post-service thank-yous that open the door to reviews and referrals

This is exactly how CallMyCustomers runs reactivation campaigns: the owner approves every script, offer, and message before anything is sent, opt-outs are honored immediately, and replies route directly into your booking process so a warm response becomes a scheduled appointment. The booking flow itself collects explicit consent, so the list you build is compliant from day one.

Done this way, texting past customers isn't a legal risk to manage — it's a permission-based second revenue engine, built on customers who already know and trust your business.