SMS Response Rates: What's Realistic on Cold Lists
Updated June 17, 2026
On well-targeted cold SMS, response rates commonly run 5–15% — far below the ~90% open rate, and that gap is the whole story. The reply rate is driven by list quality, message relevance, and how fast you work the conversation, not by the open rate. Compliant lists you have consent to text outperform scraped blasts, which get reported instead of answered.
Everyone quotes the SMS open rate because it's flattering. The response rate is the number that actually predicts revenue, and it's a much harder, much more honest figure to hit. The distance between 90% seen and single-digit answered is where every real conversation lives.
Knowing what reply rates are genuinely achievable — and what pulls them up or down — keeps you from either chasing a fantasy or quitting a channel that's working fine. Here's a grounded read on what to expect and what moves the needle.
What a realistic response rate looks like
On a tight, well-targeted cold list with relevant copy, reply rates commonly land between 5% and 15%. Anything north of that usually means a warm or opted-in audience, not true cold. Anything below 2% on a clean list usually points at weak targeting or copy that reads like a blast — not a problem with SMS itself.
The reason the number is so much lower than the open rate is simple: being seen costs the recipient nothing, but replying costs attention and a small commitment. A text that's read in three minutes and ignored isn't a delivery failure — it's a relevance failure, and that's the lever you actually control.
| List type | Consent basis | Typical reply rate | Main risk |
|---|---|---|---|
| Opted-in / inbound | Express written consent | 20–40%+ | Low — list fatigue if over-messaged |
| Warm follow-up | Prior relationship | 15–30% | Stale data, wrong number |
| Tight cold list | Relationship/exemption basis | 5–15% | Targeting and copy quality |
| Scraped blast | None established | Under 2% | Complaints, carrier filtering, legal exposure |
What response rate to expect by list type
What actually moves the response rate
Three things, in order. First, the list — texting people for whom your offer is plausibly relevant beats volume every time. Second, the message — a short, specific, human note that reads like one person wrote it to one person outperforms anything that smells like a campaign. Third, timing and follow-up — a reply that gets worked in minutes converts far better than one that sits overnight.
What does not move it: longer messages, more emoji, or sending more often to the same people. Over-messaging a list drives opt-outs and complaints, which raises your carrier risk and lowers future deliverability. On SMS, restraint is a performance feature, not a courtesy.
Reading the gap between open and reply
If your opens are near 90% and your replies are near zero, the message was seen and rejected — that's a copy or targeting problem, not a deliverability one. If your opens are low too, that's a delivery or registration problem and belongs upstream with your A2P 10DLC setup. The two failures look the same from a spreadsheet and have completely different fixes.
This is why running SMS on a system that logs the full funnel matters. In BILT, you can see delivery, reads, and replies on the same record, so a flat reply rate is diagnosed instead of guessed at — and a reply that does come in gets worked by AI in minutes rather than aging into a cold lead.
Frequently asked
What's a good SMS response rate for cold outreach?
On a tight, well-targeted cold list with relevant copy, 5–15% is a healthy reply rate. Opted-in and warm audiences run much higher — 20% and up — because the consent and relationship are already there. Below 2% on a clean list usually signals a targeting or copy problem rather than a channel problem.
Why is my SMS response rate so much lower than my open rate?
Because being seen costs the recipient nothing while replying costs attention and a small commitment. A near-90% open with a single-digit reply rate is normal and expected. The gap is closed by relevance, tight targeting, and fast follow-up — not by trying to push the open rate any higher.
Does sending more texts raise my response rate?
No — over-messaging the same list drives opt-outs and complaints, which raise carrier risk and lower future deliverability. More volume to a wider, looser list also dilutes relevance. Response rate climbs with better targeting and copy, and falls with frequency. Restraint is a performance lever on SMS.
Can buying a phone list improve my response rate?
Almost never. Scraped or purchased lists with no consent basis typically reply under 2% and generate complaints that get you filtered or worse. You also inherit legal exposure under the TCPA. A smaller list you can text on a sound legal basis beats a large one you can't every time.
The takeaway
The SMS response rate, not the open rate, is the number that pays — and 5–15% on a tight cold list is a realistic, healthy target. It moves on list quality, message relevance, and follow-up speed, and it falls when you over-message or text people with no consent basis. Read the gap between opens and replies honestly: it tells you whether your problem is delivery or relevance, and those need different fixes.