Twilio growth accelerates despite rising carrier fee taxes
- Q2 2026 organic revenue grew 17% year over year, accelerating from prior quarters.
- Management raised full-year organic growth guidance to 13% to 13.5%.
- Voice revenue growth accelerated above 20%, aided by early AI use cases.
- Carrier A2P text fees remain a drag, expected to lower 2026 non-GAAP gross margin by 210 basis points.
Faster growth meets a fee tax
Twilio delivered a strong quarter in Q2 2026, accelerating organic revenue growth to 17% year over year. Management confidently raised full-year organic growth guidance to a range of 13% to 13.5%. The positive results were broad, with Voice revenue growing more than 20% and Messaging growing 28%.
The bull case is that Twilio is proving it can sell higher-value tools on top of its large communications base. A redesigned console is lifting product adoption rates. If Voice AI, Verify, and the new Conversations layer keep growing, Twilio can expand its margins through software.
The bear case remains tied to carrier costs. U.S. carriers keep raising A2P fees, which are fees on app-to-person text messages like alerts. Twilio passes those fees through to customers. Management now expects about $250 million of incremental pass-through revenue from U.S. carrier fees in 2026, leading to a 210 basis point hit to non-GAAP gross margin.
The next year is a test of execution. Twilio needs to deliver on its new 13% to 13.5% organic growth target. Investors will watch to see if higher-margin products can offset the persistent carrier fee pressure.
Pay as customers use it
Twilio makes money when businesses use its platform to contact their own customers. A bank might send a fraud alert, a ride-share app might mask a phone call, or an online store might send a delivery text. Twilio charges mainly by usage, such as each message sent or each voice minute used.
Around 75% of revenue comes from usage-based fees and 25% comes from subscriptions. That mix is powerful when customer activity rises. It can also hurt quickly if the economy slows, if customers cut message volume, or if a large app changes providers.
The model depends on scale. Twilio buys access from network providers and cloud vendors, then sells easy-to-use tools to developers. The more developers build on Twilio, the harder it can be to replace. But the company does not fully control carrier costs, which is why A2P fees matter so much.
Segment adds a data layer. It helps companies collect and use first-party customer data, meaning data a company gets directly from its own users. Twilio wants that data to make communications smarter, especially with AI, but Segment's separate growth has been hard to track since reporting changed.
APIs, data, and AI add-ons
Messaging APIs
Messaging lets companies send SMS, MMS, WhatsApp, and RCS messages. It is core to Twilio, but it is also where A2P carrier fees create the most visible margin pressure.
Voice APIs
Voice lets apps add calling, call routing, and voice workflows. Voice revenue grew over 20% year over year in Q2 2026, helped by AI use cases.
Segment
Segment is Twilio's customer data platform. It helps businesses collect, clean, and activate their own customer data for more personal messages and campaigns.
Verify and identity
Verify helps businesses confirm users through codes and other login checks. The Stytch acquisition adds developer-focused identity tools for AI agents and modern apps.
Flex
Flex is Twilio's cloud contact center product. It gives companies a way to build customer service workflows on top of Twilio communications.
Conversations layer
New tools like Conversation Memory and Agent Connect form an AI layer across Twilio products. These are early growth bets designed to make interactions smarter.
Usage still dominates
The mix below reflects typical recent usage. Twilio reports roughly 75% usage-based revenue and 25% non-usage-based revenue across its business.
What could break the thesis
Carrier fee squeeze
High impact · High oddsMajor U.S. carriers have raised A2P SMS fees. Twilio passes these fees through at cost, so reported revenue can rise while gross margin falls. Management now expects about a 210 basis point headwind to 2026 non-GAAP gross margin from these fees, totaling roughly $250 million.
Usage slows with the economy
High impact · Medium oddsMost Twilio revenue is usage-based. If customers send fewer texts, make fewer calls, or cut digital campaigns, revenue can slow fast. This makes Twilio more exposed to customer activity than a pure subscription software company.
AI boost fades
Medium impact · Medium oddsAI helped Voice growth, but the durability of the AI tailwind is still early. If voice AI projects stay small or move to rivals, the recent growth acceleration may not last. The risk is that investors pay for an AI curve before it shows up in revenue at scale.
Segment stays hidden and slow
Medium impact · Medium oddsSegment is important to Twilio's platform story because it connects customer data to communications. But prior disclosures showed Segment growth was weak, and Twilio has reduced separate visibility. If Segment does not improve, the platform story depends more on communications alone.
Rules and trust costs rise
High impact · Medium oddsTwilio handles messages, calls, identity checks, and customer data across many countries. Telecom rules, spam controls, privacy laws, and security duties can raise costs or limit product use. A trust failure could also make large customers reduce usage.
In one breath
What does Twilio actually do?
Twilio gives developers building blocks for customer communication. Apps use Twilio to send texts, make calls, verify logins, send emails, and connect those actions to customer data.
Why are A2P fees such a big deal for Twilio?
A2P means app-to-person messages, like login codes or delivery alerts. Carriers charge Twilio fees for these messages, and recent fee increases add revenue and cost at the same time, which hurts gross margin.
Is Twilio an AI stock?
AI is becoming a real growth angle, especially in Voice and products like ConversationRelay. But it is still early, and management has said AI is not yet a massive contributor to total company results.
What should investors watch next?
The key items are organic revenue growth, non-GAAP gross margin, Voice growth, multi-product customer growth, and free cash flow. Together, those show whether Twilio can grow through the carrier fee headwind.
