Text Message Marketing for Small Businesses: What Works, What's Legal, What Annoys

Text message marketing works for small businesses when customers asked for the texts, can stop them in one word, and get messages that save them time. The legal basics are written consent before marketing texts, honoring opt-outs fast, sending between 8 a.m. and 9 p.m. local time, and registering your number with carriers.

Key takeaways

• Get clear, recorded opt-in consent before any promotional text. A phone number on an old invoice is not permission.
• Since April 11, 2025, people can opt out with any reasonable wording, and you have at most ten business days to honor it.
• Register your number for 10DLC through your texting provider, or many of your texts will never arrive.

Texting is the most personal channel most businesses can reach. That is why it works, and why it backfires so badly when it is misused. This guide covers what to send, what the law requires, and the habits that make customers hit STOP. It is a plain-language summary, not legal advice.

Why does text message marketing work for small businesses?

Texting works because it is fast, short and lands in a place people check all day. For service businesses, the best results usually come from messages tied to a job the customer already cares about: a confirmed time, a tech on the way, a quote ready to approve. Pure promotions work best when sent rarely.

The strongest use cases are the ones that remove a phone call or a worry:

• Appointment reminders that cut no-shows and let customers reschedule by reply.
• "On the way" alerts with the technician's name, so the customer knows who is at the door.
• Quote follow-up, a short nudge a few days after an estimate goes out.
• Review requests after a finished job, sent once, not three times.
• Seasonal reminders, such as a tune-up or inspection, for customers who opted in to marketing.

Texting also fits inside a bigger follow-up process. If quotes are going cold after you send them, read our guide on building a lead follow-up system that turns quotes into jobs. Texts are one step in that system, not the whole thing.

What does the law require before you send a marketing text?

Under the Telephone Consumer Protection Act (TCPA) and FCC rules, automated marketing texts need the recipient's prior express written consent. That means a signed agreement, which can be electronic, that names the phone number, says they agree to marketing messages, and makes clear that agreeing is not a condition of buying anything.

The FCC's rule at 47 CFR 64.1200 spells out what that written agreement must include. In plain terms, your opt-in should:

• Name your business as the sender.
• Say the person agrees to receive marketing texts at the number they provide.
• State that consent is not required to make a purchase.
• Capture a signature. A checked box plus a submitted web form usually serves as an e-signature, if it is valid under applicable law.

The stakes are real. The TCPA statute lets people sue for $500 per violation, and a court can triple that for willful or knowing violations. Each text can count as a separate violation, so a single bad send to a list adds up fast.

You may hear that the Supreme Court's 2021 ruling in Facebook v. Duguid narrowed what counts as an "autodialer." It did. But do not build a texting program on that argument. The FCC's do-not-call rules apply to marketing texts sent to cell phones, many states have their own texting laws, and carriers require consent no matter what the law says.

How are informational texts different from promotional texts?

The wireless industry sorts business texts into three types, and each needs a different level of permission. Replies to a customer who texted you first need little extra consent. Reminders and alerts need consent for that purpose. Sales and marketing texts need express written consent before you send them.

This framework comes from the CTIA Messaging Principles and Best Practices, the guidelines carriers use to judge business texting:

Watch the line between types. CTIA notes that adding a coupon code to an informational text can turn it into a promotional one. A reminder that says "Your appointment is Tuesday. Book a second service and save 15%" is now a marketing text and needs marketing consent.

What changed with opt-out rules in April 2025?

Since April 11, 2025, FCC rules let people revoke consent by any reasonable means, not just the word STOP. Replies like "quit," "end," "revoke," "opt out," "cancel" or "unsubscribe" count automatically. You must honor the request within a reasonable time, no later than ten business days, and you cannot force one opt-out method.

According to the FCC rule and a summary from Kelley Drye, the key points are:

• Plain-language opt-outs count. If a reasonable person would read a reply as "stop texting me," treat it that way, even if it is not a keyword.
• No exclusive method. You cannot say "opt out only by visiting our website." A text reply, a phone call or an email request all count.
• One confirmation text is allowed. You may send a single message confirming the opt-out. It is presumed fine if sent within five minutes, and it cannot include any marketing.
• Ten business days is a ceiling, not a target. Your software should stop marketing texts right away.

One related piece is still pending. The "revoke-all" rule, which would make an opt-out from one type of message stop all of your consent-based robocalls and robotexts to that person, was delayed. Per Burr & Forman, an FCC order dated January 6, 2026 moved its effective date to January 31, 2027. Plan for it now: if someone says stop, the simplest safe move is to stop everything except what they truly need, such as a reply to their own question.

What is 10DLC registration and do you need it?

10DLC stands for "10-digit long code," a regular local phone number used to send business texts from software. U.S. carriers require businesses texting this way to register their brand and each texting campaign. Unregistered messages are filtered or blocked, so registration decides whether your texts arrive at all.

Registration runs through The Campaign Registry, which describes itself as an independent reputation authority chosen by mobile carriers. You do not usually deal with it directly. Your texting provider files for you. According to Twilio’s 10DLC documentation, you will provide:

• Brand details: your legal business name and, for standard brands, your tax ID.
• Campaign details: what kind of messages you send (for example, marketing or customer care), how people opt in, and how they opt out and get help.

Lower-volume options exist for very small senders, with daily caps. Do not skip this step. Twilio began fully blocking U.S. texts from unregistered 10-digit numbers on September 1, 2023. If your reminders seem to vanish, check registration first.

A common trap: the opt-in you describe to carriers must match what is on your website and forms. If your campaign says customers opt in through a web form, that form needs visible consent language.

What makes customers hit STOP?

Customers opt out when texts feel frequent, irrelevant, poorly timed or suspicious. A text from an unknown number with a short link looks like a scam. Daily promos from a plumber feel like spam. The fix is to identify yourself, send less, and make each message useful to the person reading it.

Trust matters more than ever because scam texts are everywhere. The FTC reported that consumers lost $470 million to scams that started with a text in 2024, about five times the 2020 figure. The agency tells people not to click links in unexpected texts. Your messages compete with that warning.

Habits that annoy customers, and what to do instead:

How do you set up a compliant texting program step by step?

Start with consent and records, then register, then write messages. Most problems come from texting an old customer list nobody opted in to, or from software that does not log consent. Build the foundation first, and the marketing part becomes the easy part.

1. Pick a provider that handles 10DLC registration, logs opt-ins and opt-outs, and supports quiet-hour scheduling by time zone.
2. Write your opt-in language. CTIA expects the sign-up to show the program description, your business name, how often you text, any fees such as message and data rates, how to opt out, how to get help, and a link to your privacy policy. Do not bury this in your terms.
3. Add opt-in points: your website forms, booking flow, and a keyword customers can text to join.
4. Send a confirmation message after someone joins a recurring program, with your name, frequency, help and opt-out instructions.
5. Keep records. CTIA lists the data to keep: timestamp, how consent was given, which program, and the phone number.
6. Never buy, rent or share lists. CTIA says consent applies only to the sender and campaign it was given for.
7. Remove numbers that opt out or are disconnected, and test your STOP handling before every big send.

If you run a home service business, a good first program is often reminders and quote follow-up only. Add promotions later for customers who opt in to them.

How do you measure whether texting is paying off?

Track the outcomes the texts are meant to change: no-show rate for reminders, quote close rate for follow-ups, and booked jobs or revenue for promotions. Watch your opt-out rate after each send too. A spike tells you a message was too frequent, too salesy or sent to the wrong group.

Simple numbers to track each month:

• Opt-ins gained and where they came from.
• Opt-outs per campaign, as a share of people texted.
• Replies and calls generated by each message.
• Jobs booked from texts that you can trace to a link, code or reply.

Tie these back to the cost of each lead and job so you can compare texting with your other channels.

Frequently asked questions

Do I need permission to send marketing texts to my customers?

Yes. Federal rules require prior express written consent before automated marketing texts, and carriers expect it for any promotional message. Having someone's number from an invoice or a past job is not the same as permission to market to them. Ask clearly, record the opt-in with a date and source, and keep that record for as long as you text them.

How fast do I have to stop texting someone who opts out?

Federal rules allow a reasonable time, but no more than ten business days. In practice, your software should stop marketing texts the moment someone replies STOP or a similar word. You may send one confirmation text within five minutes that confirms the opt-out. It cannot include any offer, coupon or sales pitch.

What hours can a business send marketing texts?

Federal telemarketing rules bar solicitations before 8 a.m. or after 9 p.m., based on the recipient's local time. Some states set tighter windows, so check where your customers live. Many businesses use a narrower house rule, such as weekdays from late morning to early evening, because a sales text at 8:05 a.m. is legal but rarely welcome.

Do I have to register for 10DLC if I only send a few texts?

If you send texts from software over a regular 10-digit business number, yes. U.S. carriers require the brand and campaign to be registered, and providers such as Twilio block unregistered traffic. Very small senders can often use a lower-volume or sole proprietor option. Your texting provider handles the filing, but you supply the business details and opt-in description.

Is this article legal advice?

No. It is a plain-language summary of federal rules and carrier guidelines as of October 2026. State laws, court rulings and FCC orders change, and penalties can add up fast. Before you launch a texting program, have a lawyer who knows the Telephone Consumer Protection Act review your opt-in form, message types and records.

The bottom line

Texting is a privilege your customers grant, and they can take it back with one word. Get written consent, register your number, send fewer and better messages, and stop the moment someone asks. Do that and texting earns its place in your follow-up. For help with the forms and flow behind it, Book a free call with Mike or run the free 60-second check to see how customers find you today.

Sources

• eCFR: 47 CFR 64.1200, Delivery restrictions (FCC)
• 47 U.S.C. 227, Telephone Consumer Protection Act (Cornell Legal Information Institute)
• Kelley Drye: FCC sets effective date for TCPA consent revocation rules
• Burr & Forman: FCC delays TCPA revoke-all rule until January 31, 2027
• CTIA Messaging Principles and Best Practices (May 2023)
• The Campaign Registry: introduction
• Twilio: A2P 10DLC documentation
• Twilio: full blocking of unregistered 10DLC traffic
• Facebook, Inc. v. Duguid (2021), Cornell Legal Information Institute
• FTC: top text message scams of 2024

Keep reading

• How to build a lead follow-up system that turns quotes into jobs
• Speed to lead: how fast you need to respond
• Email deliverability and the new sender rules