TCPA
Is automated texting your customers legal?
Usually yes. The conditions are where businesses get caught, and they get caught in the same two places almost every time.
TCPA7 min read
Not legal advice
This is an orientation written by people who build messaging software, not lawyers. It describes how these rules shape a system's design. Your own facts, your state, and your channels decide what actually applies to you — talk to counsel before relying on any of it.
The short answer
Texting someone who just contacted you, to answer what they asked, is the safest message you can send. It is a response to an inquiry, not telemarketing, and it is what most service businesses actually want to do.
The exposure starts when a message promotes something, and it compounds when you message a list rather than a person. Those are two different failure modes and they need separating, because businesses tend to worry about the first and get sued over the second.
What the TCPA actually requires
The Telephone Consumer Protection Act governs calls and texts to mobile numbers made with an autodialer or a prerecorded voice. The standard it applies depends on what the message is for.
- Telemarketing or advertising needs prior express written consent — a clear written agreement to receive those messages at that number, including disclosure that agreeing is not a condition of purchase.
- Informational messages — an appointment confirmation, a technician on the way, an answer to a question the customer asked — sit under a lower bar.
The line between them is drawn by what the message says, not by what you meant. A reply that answers a pricing question and then mentions this month’s promotion is doing two jobs under two standards, and the promotional half is the one that gets examined.
The mistake that costs the most
What changed, and what guidance is now wrong
The FCC adopted a rule that would have required consent to be given one-to-one — to a single identified seller, for communications logically and topically related to the interaction that produced it. It was aimed at lead generators selling a single consent to dozens of buyers.
It never took effect. In January 2025 the Eleventh Circuit vacated it in Insurance Marketing Coalition v. FCC, holding that the FCC had altered the ordinary meaning of prior express written consent beyond its authority. The FCC then repealed the rule and reinstated the prior standard.
Practical consequence: if you are reading a compliance guide written in 2024 that describes one-to-one consent as the coming requirement, that guide is out of date, and it may be out of date in other places too. Check the publication date on anything you rely on here.
This is also why every post on this site carries the date each source was last checked. Nobody does that, and it is the single most useful thing on the page.
Where the real exposure sits
In our experience building this, three things account for nearly all of it.
- Scoped opt-outs. Honoring STOP for the campaign that was running, or on the channel the request arrived on, rather than for the contact permanently and everywhere.
- Consent you cannot evidence. Believing a contact opted in is not the same as being able to produce when, where, and to what. If it is not recorded, it did not happen.
- Inherited lists. Contacts imported from an old CRM, a bought list, or a previous vendor, whose consent history did not come with them.
Where this belongs in software
A practical checklist
- Separate informational replies from promotional sends, in your system, not just in your head.
- Record consent with a timestamp, a source, and the specific scope agreed to.
- Make STOP permanent, immediate, and global across channels and campaigns.
- Quarantine inherited contacts until their consent is evidenced or re-obtained.
- Register your traffic — see A2P 10DLC; it is a separate regime from the TCPA and being right on one does not cover the other.
- Have counsel read your actual message templates, not a description of them.
Questions people ask
Can I text a customer who called me first?
Replying to someone who just contacted you is generally treated as responding to their inquiry rather than as telemarketing, and that is the safest category of message you can send. The analysis changes as soon as the message promotes something — a reply that answers their question and then offers a discount is doing two different jobs under two different standards.
What consent do I need for marketing texts?
Prior express written consent, for telemarketing or advertising messages sent to a mobile number using an autodialer or prerecorded voice. That means a clear written agreement from the recipient to receive those messages at that number, with disclosure that consent is not a condition of purchase. Informational messages sit under a lower bar, but the line between informational and promotional is drawn by content, not by your intent.
Didn't the rules change recently?
The FCC's one-to-one consent rule, which would have required consent to be given to a single specific seller, was vacated by the Eleventh Circuit in January 2025 before it took effect, and the FCC then repealed it and reinstated the prior standard. If you are reading guidance written in 2024 that describes one-to-one consent as upcoming law, it is out of date.
What does a violation actually cost?
The TCPA provides statutory damages per violation, and violation means per message. That per-message structure is what turns one bad list into a number that ends a small business, and it is also why plaintiffs' firms find this area worth their time.
How should opt-outs work?
Immediately, permanently, and across everything. Honoring STOP only for the campaign that was running, or only on the channel the request arrived on, is the most common way an otherwise careful business creates exposure. An opt-out should be a property of the contact, enforced below the layer that composes messages, not a flag one workflow checks.
Sources
- Insurance Marketing Coalition v. FCC (11th Cir., January 2025) — vacating the FCC's one-to-one consent rule; FCC subsequently repealed it and reinstated the prior standard· checked 2026-09-24
- Twilio — A2P 10DLC compliance documentation (brand and campaign registration, throughput, trust score)· checked 2026-09-24
If you want to know how fast you currently answer inquiries — and what the gap costs — that is what the audit measures. Two weeks on your real channels, before anything is installed.
Book a $400 auditTwo weeks of measurement on your real inbox. If the numbers say you do not have this problem, we will tell you and stop there.