The short answer
The sticker price of a business text is only part of the story. Real SMS costs include A2P 10DLC registration and campaign fees, per-segment carrier surcharges that rise every year, and the hidden cost of filtered messages you still pay for but that never arrive. iMessage sidesteps the carrier fees entirely because it doesn’t ride the carrier network. The number that actually matters isn’t cost per message sent, it’s cost per message delivered and read.
Ask what business texting costs and you’ll get a per-message price that sounds tiny. Then the real bill shows up: registration fees, carrier surcharges, and the messages you paid to send that quietly got filtered. Here’s the honest breakdown of what you actually pay to text customers, and why the delivered-message math changes the picture.
The line items
What are the real costs of business SMS?
Sending business texts over the carrier network (A2P) comes with layers most owners never see up front:
SOURCE: TWILIO A2P 10DLC PRICING & FILTERING DOCS
- Registration. Before you can send, you register your brand and each campaign, with one-time and ongoing fees.
- Carrier surcharges. On top of the base rate, carriers add a per-segment surcharge, and those fees have been climbing. A longer message counts as multiple segments, so your real per-message cost is often higher than the number you were quoted.
- The filtering tax. Carriers filter a share of business texts as suspected spam. Here’s the painful part: an attempt that gets filtered can still be billed. You pay to send a message that never lands.
The hidden cost
The most expensive message is the one that never arrives
Focus on cost per message sent and SMS looks cheap. Focus on cost per message delivered and read and the math flips. If a chunk of your registered messages get silently filtered, the ones that do land have to carry the cost of the ones that didn’t. And a delivered message that gets ignored as a green text from an unknown number is barely better than one that was filtered.
The metric that matters
Don’t optimize cost per message sent. Optimize cost per conversation. A channel that reliably lands and gets read is cheaper per real outcome, even if its headline price looks the same.
Where iMessage fits
Why iMessage changes the cost equation
Because iMessage travels over Apple’s internet infrastructure instead of the carrier SMS network, the carrier-specific costs simply don’t apply to it. There’s no A2P 10DLC registration, no per-segment carrier surcharge, and no carrier spam filter taking a cut of your delivered messages. For the roughly 58% of U.S. leads on iPhones, that means more of your messages land, as trusted blue bubbles, without the carrier toll. The deliverability mechanics behind that are in why iMessage skips the spam filter.
None of this makes SMS useless. It’s the universal fallback for Android and it has to be done right, registered and clean. But when you’re pricing out how to reach customers, the honest comparison is per delivered, read message, and that’s where leading with iMessage pays off.
See a message with no carrier toll
Fill out the form and watch your phone. A real iMessage lands in about 60 seconds, no A2P fees, no carrier surcharge, no filtering tax.
Frequently asked questions
How much does business texting really cost?
Do I pay for texts that get filtered?
Is iMessage cheaper than SMS?
Why do carrier surcharges keep rising?
Sources
- Twilio, A2P 10DLC pricing and carrier fees: help.twilio.com/articles/1260803965530
- Twilio, SMS carrier filtering and billing behavior: help.twilio.com/articles/360022449893
- Telgorithm, 2024 A2P 10DLC carrier fee increases: telgorithm.com/news
- Apple, iMessage overview (no carrier network): support.apple.com/en-us/104972