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Text Message Marketing for Small Businesses: What's Allowed and What Works
Texting reaches almost every customer a service business has, which is exactly why federal rules put a price on every promotional message sent without written permission, and why the texts that do the most good are usually the plain ones about appointments.
At a glance
- Text message marketing is sending promotional texts, such as openings, offers and announcements, to customers who have agreed in writing to receive them; it is a different thing, legally and practically, from answering a customer's text or confirming an appointment.
- Nearly every customer can be reached this way, since 98% of U.S. adults owned a cellphone in Pew Research Center's 2025 survey, and the federal law that governs these messages lets a recipient sue for $500 for each one sent in violation, up to three times that when the violation is willful.
- The strongest evidence for texting concerns appointment reminders; in a Cochrane review of eight randomized trials covering 6,615 people, text reminders raised attendance at appointments from 678 to 773 per 1,000.
- The safe setup has four steps: sort every text into conversational, informational or promotional; collect written consent for promotional texts; register the business number for business texting; and honor STOP replies quickly.
- For an illustrative list of 300 customers, one promotional send without proper consent carries $150,000 in potential statutory damages, against about $5,760 a year in bookings from doing it correctly.
Part 1 | Three kinds of texts carry three levels of permission
The carriers' trade association sorts business texts into three groups, and the sorting is the most useful idea an owner can borrow. In its Messaging Principles and Best Practices, CTIA describes conversational texts, which a customer starts and the business answers; informational texts, such as appointment reminders, which the customer has agreed to receive for a specific purpose; and promotional texts, which sell something and call for the customer's written agreement.
| Kind of text | Salon or trade example | Permission expected |
|---|---|---|
| Conversational | A customer texts "Do you have anything Saturday?" and the front desk replies | None beyond the customer starting the conversation |
| Informational | "Reminder: your appointment is Thursday at 2 p.m. Reply C to confirm." | Agreement to receive texts for that specific purpose |
| Promotional | "Two openings this Friday, 15% off color services" | Written agreement to receive promotional texts |
Most owners start from the promotional end, with a thought like We should be texting our customers about specials, when the quieter work of replying fast and sending reliable reminders is both lower risk and better proven. The order matters because consent collected for reminders does not stretch to cover promotions, and a customer who has found your reminders useful has a reason to say yes when you ask about offers.
Part 2 | The federal rules attach a dollar figure to every promotional text
The Telephone Consumer Protection Act and the FCC rules under it set the floor for marketing texts in the United States. The core requirement is prior express written consent, which the rules define as a written agreement, signed by the customer (an electronic signature counts), that clearly authorizes the business to send advertising or telemarketing messages to a specific phone number, and which tells the customer that signing is not a condition of buying anything.
$500 per message is what the statute lets a recipient recover for each violating text, and a court may raise that to as much as three times the amount when the violation was willful or knowing. Because the damages are counted per message, a single send to a list built without proper consent multiplies quickly, which is why the consent record matters more than the wording of the offer.
Several other rules come with the territory, and each one can be built into a simple habit:
- Opt-outs. Since April 2025, FCC rules let a customer revoke consent by any reasonable means, treat replies such as "stop," "quit," "end," "revoke," "opt out," "cancel" and "unsubscribe" as revocation, and require the business to honor the request within ten business days. One confirmation text is allowed if it goes out within five minutes and contains no marketing.
- Hours. FCC rules bar telephone solicitations before 8 a.m. or after 9 p.m. in the recipient's local time, so promotional texts belong inside that window.
- Registration. Texting customers from an ordinary ten-digit business number at volume requires registering the business (the "brand") and the purpose of its messages (the "campaign") through the carriers' registry, known as 10DLC registration. A major carrier network provider reports that unregistered outbound business traffic in the U.S. has been blocked since February 1, 2025, so a texting tool will ask for this information during setup.
- State laws. Some states add their own rules; Florida's telephone solicitation law, for example, requires written consent for automated sales texts and provides $500 in damages per violation.
The CTIA guidelines add the disclosures carriers expect at sign-up: the program name, how often messages will come, any fees, how to get help, how to opt out using the word STOP, and links to terms and a privacy policy.
General information, not legal/tax/financial advice; talk to a licensed professional about your situation.
Part 3 | Reminders and quick replies earn their place before promotions do
The best evidence on texting comes from health care, where appointments, like a salon's or a dental practice's, are booked days ahead and sometimes missed. A Cochrane review of eight randomized trials with 6,615 participants found that text reminders raised attendance from 678 to 773 per 1,000 appointments compared with no reminder, about 95 more kept appointments per thousand, and that texts and phone-call reminders produced about the same attendance (795 versus 803 per 1,000), with two studies suggesting texts cost less per attended visit.
Those trials took place in health clinics, where about 68% of patients attended without a reminder, so the size of the gain will differ in a salon or a plumbing company. The direction is still useful, because it means a front desk that spends an hour a day on reminder calls can usually hand that job to a text without losing attendance, and spend the hour on the calls that need a person.
Promotional texts can still pay, as long as they go to people who asked for them and the math is written down before the first send.
| Customers on the promotional list (Assumption) | 300 |
|---|---|
| Share who book from a monthly text (Assumption) | 2% |
| Bookings per send (Calculated (300 × 2%)) | 6 |
| Average ticket (Assumption) | $80 |
| Revenue per send (Calculated (6 × $80)) | $480 |
| Revenue per year, 12 sends (Calculated ($480 × 12)) | $5,760 |
| Texting tool cost per year (Assumption ($30 a month)) | $360 |
| Statutory damages if one send lacked consent (Calculated (300 × $500 under the TCPA)) | $150,000 |
| Upper bound if found willful (Calculated (300 × $500 × 3)) | $450,000 |
Illustrative example; replace every assumption with your own numbers.
A careful consent form removes most of that risk for almost no cost; a paper or tablet sign-up at the front desk, or a checkbox on the online booking page that is unchecked by default and names the program, the frequency and the STOP instruction, takes a minute per customer and keeps every number on the list backed by a dated record.
How you compare
- Reach: with 98% of adults carrying a cellphone, nearly every customer in your book can receive a text, so the size of a promotional list depends on how many customers agree to join it.
- Reminders: in the trials, text reminders matched phone calls on attendance. If your front desk still calls every appointment, compare its hours on the phone with the cost of an automated reminder.
- Opt-outs: the FCC allows up to ten business days to honor a STOP request. Most texting tools do it instantly, and any manual list should be updated the same day.
- Your own baseline: for each promotional send, write down the list size, the bookings that followed within a week and the number of opt-outs. After three sends you will know your own booking rate and whether the program is worth continuing.
Questions to ask this week
Can we show written consent for every number on our promotional list? If the list was built from old invoices or booking records, those customers agreed to service texts at most, and should be asked again before any offer goes out.
Which of our texts are actually promotional? A "we have openings Friday" message reads as friendly, but it sells something, so it belongs in the promotional group.
Is our business number registered for business texting? Ask your texting or phone provider whether brand and campaign registration is complete, and what happens to messages if it is not.
How fast do we honor STOP? Send STOP to your own number from a test phone and see how long it takes to come off the list.
The first step this week is a short audit: export your texting list, mark how each number was collected and set aside every number without a written promotional consent before the next offer goes out.
About this research: This article draws on the FCC's TCPA rules (47 CFR 64.1200) and the statute's private right of action (47 U.S.C. 227), CTIA's 2023 Messaging Principles and Best Practices, a carrier network provider's 10DLC guidance, Florida's telephone solicitation statute, Pew Research Center's 2025 mobile fact sheet and a Cochrane systematic review of text-message reminders. The worked example is illustrative. Rules change, and nothing here is legal advice.
Sources
- Federal Communications Commission. 47 CFR 64.1200, Delivery restrictions. Electronic Code of Federal Regulations, current as of October 2026.
- U.S. Congress. 47 U.S.C. 227, Restrictions on use of telephone equipment. Telephone Consumer Protection Act.
- CTIA. Messaging Principles and Best Practices. May 2023.
- Bandwidth. 10DLC frequently asked questions. Support documentation, accessed October 2026.
- Florida Legislature. Section 501.059, Telephone solicitation. Florida Statutes.
- Pew Research Center. Mobile Fact Sheet. 2025. 5,022 U.S. adults.
- Gurol-Urganci, I., de Jongh, T., Vodopivec-Jamsek, V., Atun, R. and Car, J. Mobile phone messaging reminders for attendance at healthcare appointments. Cochrane Database of Systematic Reviews, 2013 (summary 2016). 8 trials, 6,615 participants.
Related reading: What to Do When You Can't Answer the Phone: Missed-Call Text-Back for Service Businesses · The Review Request Text to Send After Every Visit · How to Cut No-Shows Without Losing Good Customers · Email List or Social Followers: Which One Brings Customers Back?
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