Lead response time statistics: how fast is fast enough?

“Respond within five minutes” is one of the most repeated rules in sales. It’s also one of the least examined. Most articles quote the same handful of numbers without saying where they came from, how old they are or who paid for the research.

This page collects the lead response time data we could trace to an original source, explains what each study measured, and flags the popular figures we couldn’t verify. Then it turns the research into targets a small team can actually hit.

Methodology: We only include figures we could trace to the original source; each links to it. Where research comes from a company that sells software or services, we say so. Last checked October 2026.

The classic studies

Almost every speed-to-lead claim goes back to two pieces of research by the same lead author, James Oldroyd.

• 100x: the odds of contacting a web lead dropped 100-fold when the first call came at 30 minutes instead of 5 minutes — InsideSales.com/MIT Lead Response Management Study (2007, 3 years of data from 6 companies, 15,000+ leads, 100,000+ call attempts)
• 21x: over the same 5-to-30-minute window, the odds of qualifying the lead dropped 21-fold — same study (2007)
• 5x: contact odds fell five-fold between the 5-minute and 10-minute marks — same study (2007)
• 10x: the odds of contacting a lead fell more than 10 times within the first hour, and the odds of qualifying it more than 6 times — same study (2007)
• 37% of 2,241 US companies audited responded to a web-generated test lead within an hour; 16% responded within 1–24 hours, 24% took longer than 24 hours and 23% never responded — Harvard Business Review (2011)
• 42 hours: the average response time among companies that responded within 30 days — same article (2011)
• Nearly 7x: firms that tried to contact a lead within an hour were nearly seven times as likely to qualify it as firms that tried even an hour later, and more than 60 times as likely as firms that waited 24 hours or longer — same article (2011, 1.25 million leads at 29 B2C and 13 B2B US companies)

Know the limits before you quote these. The MIT study is now 19 years old. It used call data from InsideSales.com, a vendor of lead-response software, and was presented at a MarketingSherpa summit in October 2007 rather than published in a journal. It measured contact and qualification, and says plainly that it “did not address close ratios.” Each company also defined a “qualified” lead its own way.

The HBR article is 15 years old, and one of its three authors was the chief executive of InsideSales.com. It defines a qualified lead as “having a meaningful conversation with a key decision maker,” and like the MIT study it measures reaching and qualifying leads, not closed sales.

What this means for your team: The direction of the finding is consistent and believable: people are easiest to reach right after they raise their hand. The exact multipliers are not a forecast for your business. Treat “minutes, not hours” as the lesson, then measure your own contact rate by response time.

How fast companies respond today

Newer audits show that most businesses still don’t respond quickly, even with better tools.

• 0.1% of inbound leads were engaged in under five minutes — InsideSales Lead Response Study (2021, 5.7 million inbound leads at 400+ companies; vendor research)
• 57.1% of first call attempts happened more than a week after the lead came in — InsideSales (2021, same dataset)
• 8x: conversion was eight times higher for leads worked in the first five minutes than for those worked between five minutes and 24 hours — InsideSales (2021, same dataset)
• 1 day, 5 hours and 17 minutes was the average response time across 1,000 B2B companies tested — RevenueHero (undated report; vendor of scheduling and routing software)
• 63.5% of those companies didn’t respond to demo requests at all — RevenueHero (same report)
• 13 minutes was the median response to a website form across US law firms — Hennessey Digital (Q1 2025, 1,333 firms; research by a law-firm marketing agency)
• 25% of those firms replied in under five minutes, up from 13% in 2021, and 56% replied within the hour — Hennessey Digital (2025)
• 26% of law firms never responded to the online lead within seven days — Hennessey Digital (2025)
• 87%: the phone was the top way firms responded to online leads, used by 87%, while 67% used email — Hennessey Digital (2025)

The law firm data is useful because it uses a clear method: test inquiries submitted between 10 a.m. and noon local time, timed from submission to the first personal outreach. It’s also a reminder that improvement is possible. The median dropped from 25 minutes in 2021 to 13 minutes in 2024 and 2025.

What this means for your team: Being merely “same day” doesn’t put you in the slow pack, but it doesn’t put you first either. A five-minute reply is still rare enough to stand out. The easiest gains come from closing the gap between “lead arrives” and “someone notices.” That means one inbox, instant alerts and automatic assignment (see our guide to lead routing).

Why speed matters to buyers

Speed matters partly because of how buyers behave before they ever contact you.

• 79% of the time, the buyer, not the seller, initiated first contact — 6sense Buyer Experience Report (2025, nearly 4,000 B2B buyers in North America, EMEA and APAC; vendor research)
• 77% of deals were won by the vendor the buyer contacted first — 6sense (2025, n=3,744)
• 61%: on average, buyers were 61% of the way through their buying process before first contact with a seller, down from about 69% — 6sense (2025)
• 95% of buyers chose a vendor from the shortlist they had on day one — 6sense (2025)
• 47% of home buyers hired the first agent they spoke with, and so did 59% of sellers — Zillow Consumer Housing Trends Report (2025; sample size not stated in the release)
• 61% of B2B buyers prefer an overall rep-free buying experience — Gartner (published 2025, 632 B2B buyers surveyed Aug–Sep 2024)

Read the 6sense numbers carefully. A buyer who contacts you first may simply have preferred you already, so “first contact wins” doesn’t prove that speed alone wins deals. But it does mean an inbound lead is often a buyer who has done their homework and picked you as a favorite. Leaving that person waiting a day is an expensive way to lose a head start.

What this means for your team: When a lead reaches out, they’re usually close to a decision and comparing a short list. For a realtor, the Zillow data suggests the hiring decision often happens on the first conversation. For a contractor or lawn care company, the same logic applies to quote requests: answer while they’re still on your website, not after they’ve called two other companies.

Why teams respond slowly

Slow response is rarely laziness. It’s capacity and attention.

• Every 2 minutes: during the 9-to-5 workday, employees are interrupted about every two minutes — Microsoft Work Trend Index (2025, survey of 31,000 workers in 31 markets)
• 80% of the global workforce says they lack the time or energy to do their work — Microsoft Work Trend Index (2025)

A closer on back-to-back appointments, a contractor on a roof or a realtor at a showing can’t watch a form inbox. That’s why speed is a system problem rather than a willpower problem.

What this means for your team: Don’t rely on someone checking email. Send new leads where people already look (a phone notification, a shared inbox), assign them automatically, and put an automatic holding reply in place for the moments nobody can pick up.

How fast is fast enough?

No study gives one perfect number for every business. Based on the research above, these are reasonable targets for a small team. They are our recommendations, not findings from a study.

Lead type	First touch	First human conversation	After hours
Web form or quote request	Instant automated text or email	Within 5 minutes in business hours	Holding reply, call first thing next morning
Inbound phone call	Answer live, or an AI receptionist answers	Immediately	AI receptionist or voicemail callback within the first hour of the next business day
Missed call	Automated text back	Within 15 minutes	Text back, call next morning
Inbound text or WhatsApp	Reply in the same thread	Within 5 minutes in business hours	Holding reply that says when you’ll respond
Purchased or referral lead	Personal call or text	Same day	Next business morning

Then measure. Track time from lead creation to first outbound contact by rep and by source, and compare conversion for leads answered in five minutes against those answered later. Your own numbers will tell you more than any 2007 multiplier.

In Exa, a ready-made speed-to-lead automation can text a new lead and create a call task for the assigned rep, while consent and quiet hours are respected. The AI receptionist can answer calls you’d otherwise miss and book appointments. Our speed-to-lead playbook walks through the setup.

Myths we couldn’t verify

These figures appear on hundreds of pages. We tried to trace each one and couldn’t confirm it in an original source, so we haven’t used it above.

• “78% of customers buy from the company that responds first.” This is usually credited to a “Lead Connect” survey that nobody seems able to link to. The closest traceable figure is 6sense’s finding that the vendor contacted first won 77% of deals, which measures something different: the buyer chose whom to contact.
• “Responding in five minutes makes you 100 times more likely to connect” credited to Harvard. The 100x figure comes from the 2007 MIT/InsideSales study, not from HBR, and it describes contact odds, not sales.

If you see a precise multiplier with no link, no year and no sample, treat it as marketing.

Final thoughts

The evidence for responding fast is real but thinner than its reputation. It rests on a 2007 vendor dataset, a 2011 article co-written by a vendor and a few recent audits run by companies that sell speed-related services. Even so, every source points the same way: buyers reach out when they’re ready, they often pick from a short list they’ve already made, and many businesses still take hours or days to reply.

You don’t need a perfect statistic to act on that. Set a target, automate the first touch, route leads to someone who can call, and measure your own conversion by response time. For what to say once you reach them, see our guide to texting vs calling new leads.