10DLC Carrier Surcharges in 2026: What They Mean for Your SMS Bill

Key Takeaways:

• Carrier pass-through fees on A2P 10DLC texts went up several times in 2026: T-Mobile on Jan 19, AT&T on Apr 1, Verizon on May 1 and again on Oct 1, plus a round of smaller regional carriers on Nov 1.
• Today a typical outbound SMS carries roughly $0.0035 to $0.005 in carrier fees, before your platform's own message price.
• At 10,000 messages a month, carrier surcharges add roughly $35 to $50. At 50,000 messages, roughly $175 to $250.
• Unregistered A2P traffic is no longer an option, so every business text now goes over a registered route: 10DLC, toll-free or short code. The surcharges apply on all three.
• Long messages and replies can change your bill, so the per-segment math matters as much as the per-message price.

If your texting invoice crept up this fall and nobody told you why, the cause is probably not your provider. It is the carriers.

Over the past year, the mobile networks that deliver business text messages have raised the pass-through fees they charge on every A2P (application-to-person) message. Most providers pass those fees straight through, so they show up as a separate line or are folded into your per-message cost. This guide breaks down what changed, what it means in dollars at 10,000 and 50,000 messages a month, and how to keep the surcharges from catching you off guard.

Fee amounts below come from public carrier surcharge schedules, including Bandwidth's carrier surcharges page and Tychron's carrier fee notices, and were checked in November 2026. Carriers can change them with short notice, so confirm current rates against your own invoice before you budget.

What changed in 2026

Carrier surcharges are charged per message segment and are separate from what your texting platform charges. A short text is one segment, but a long message, or one containing an emoji or other special character, is several. We explain how in SMS segments explained. Here is the timeline for the networks most senders reach:

Two things are worth noticing. First, the headline Nov 1 change mostly affects smaller regional networks, while the biggest increase for most senders was Verizon's move on Oct 1. Second, inbound replies are not free everywhere: T-Mobile and AT&T charge for inbound SMS, while Verizon does not. If your campaigns invite replies, you pay for those too.

There is no unregistered option anymore

Carriers have been blocking unregistered A2P traffic since early 2025, so the old "register or pay a premium" question no longer applies. Every business text has to go over a registered route, and the carrier surcharges follow the traffic whichever route you pick:

So switching routes will not get you out of the surcharges. What differs is setup effort, monthly fees and throughput. On TXTImpact, an additional local or toll-free number is $5 a month, 10DLC campaigns are $10 a month, and a dedicated short code is priced separately on the pricing page. For most small and mid-size senders, 10DLC is the lowest-cost route to start with. If you have not registered yet, start with our 10DLC registration guide, or read why campaigns get rejected in A2P 10DLC Campaign Rejected? Fix It with TXTImpact AI Wizard.

What a 10DLC budget looks like in practice

Your total monthly cost has three parts: the platform's message credits, the 10DLC registration fees, and the carrier surcharges. Here is how TXTImpact's published pricing works out at two common volumes. These are illustrative; check the pricing page for current plans.

TXTImpact 10DLC fees (USA): $10/month per registered campaign and $5/month per additional local number, plus one-time registration, brand and vetting fees listed on the 10DLC page. The pricing page also notes that additional carrier fees apply on top of message credits.

Example 1: 10,000 messages a month

Assumptions: 10,000 single-segment SMS, one registered campaign, one local number.

Carrier surcharges are about 10 to 14 percent of that bill. Sending the same volume over toll-free would carry the same surcharge range.

Example 2: 50,000 messages a month

Assumptions: 50,000 single-segment SMS at the best published platform rate of $0.0125 per credit, which is the lowest "as low as" rate on the pricing page. Actual volume pricing depends on your plan, so treat this as a best case and ask for a quote.

At this volume the surcharges alone are $175 to $250 a month, which is why trimming message length and cleaning your list is worth the effort.

Three things that move your bill

1. Message length (segments). Carriers bill per segment, as explained in our guide to SMS segments. A standard SMS holds 160 GSM-7 characters. Go over that, or include an emoji or other non-GSM character, and the message splits into multiple segments. If your average message is 1.4 segments, 10,000 messages become 14,000 segments, so at $0.0045 the carrier fee is about $63 instead of $45. Keeping promotional copy under one segment is the cheapest optimization you have.

2. Replies. Two-way conversations are good for engagement, but on networks that charge inbound fees, every reply adds cost. If 10 percent of 10,000 recipients reply and the carrier charges $0.0035 inbound, that is about $3.50 extra. Small, but it scales with volume.

3. MMS. Carrier MMS fees are higher than SMS: AT&T charges $0.009, Verizon $0.007 and T-Mobile $0.010 per message. TXTImpact counts an MMS as 2 credits, which many providers price at 3, but the carrier fee still applies.

A new fee to watch: RCS interactive sessions

If you are adding RCS business messaging, note that from Nov 1, 2026 carriers introduced a flat "interactive session" fee on top of per-message RCS charges: $0.009 at Verizon, $0.03 at AT&T and Clearsky, and $0.06 at T-Mobile. Because it works differently from SMS billing, ask your provider how RCS sessions will appear on your invoice. See our RCS messaging guide for background.

How to keep surcharges from surprising you

• Read your invoice, not just your plan. Ask your provider whether carrier fees are bundled or itemized, and how multi-segment messages consume credits.
• Trim copy to one segment where you can, and avoid unnecessary emojis.
• Clean your list. Texting numbers that never respond or that have churned costs you the carrier fee every time.
• Register properly the first time. Since every message must go over a registered route, a rejected campaign means a pause in sending, not just a delay. The AI Wizard validates your brand and campaign details before you submit.
• Compare total cost, not just per-message price. Our guide to the best SMS platforms that handle 10DLC registration compares the full picture, and the SMS compliance checklist covers the consent side.

Bottom line

Carrier fees are now a permanent line in the cost of business texting, and they have risen about a half cent per message across the big networks in under a year. They are still small relative to what a text can earn, but at 50,000 messages a month they add up to hundreds of dollars. Since all traffic now has to go over a registered route, the surcharges are a cost of sending, not something you can opt out of. What you can control is message length, reply volume, list quality and getting registered cleanly, and knowing your per-segment math lets you budget accurately.

Ready to see your own numbers? Compare plans on the pricing page, start a free 15-day trial, or book a demo. Developers can also review API pricing.

This article is general information, not legal or financial advice. Carrier fees and registration requirements change; confirm current figures with your provider and carriers.

Frequently Asked Questions

What is a carrier surcharge on 10DLC messages?

It is a per-message-segment fee that mobile carriers charge for delivering A2P traffic. A long text or one with special characters is several segments, and each one is charged. Your platform passes it through to you, either as a separate line or inside your per-message price.

Why did my SMS costs go up in 2026?

Several carriers raised pass-through fees: T-Mobile in January, AT&T in April, Verizon in May and again in October, and a group of regional carriers on November 1.

How much do carrier fees add at 10,000 messages a month?

Roughly $35 to $50 for single-segment SMS at current outbound rates of about $0.0035 to $0.005 per message. Longer messages and inbound replies add to that.

Can I still send business texts without registering?

No. Carriers block unregistered A2P traffic, so business messages need to go over a registered 10DLC number, a verified toll-free number or a short code.

Do carriers charge for inbound replies?

Some do. T-Mobile and AT&T charge for inbound SMS, while Verizon currently does not.

Do surcharges apply to short codes and toll-free numbers too?

Yes. Verizon's October increase, for example, applies to 10DLC, toll-free and short code traffic.

A Final Word from TXTImpact

At TXTImpact, we have spent more than 20 years watching the messaging industry change. SMS is still one of the most powerful ways for businesses to engage customers, users and employees. At the same time, it comes with a cost. Knowing how it works, from message segments to carrier surcharges, is the best way to avoid surprise bills and set your texting program up for success.