Lead response report: what the published studies say

Lead response time statistics show that the chance of reaching and qualifying an inquiry falls sharply within the first hour, and that a large share of businesses respond slowly or not at all. The core evidence comes from two pieces of research done more than a decade ago, plus newer industry audits that point the same way.

This report goes back to those original sources. Many articles repeat the numbers secondhand, and some blend different studies together or attach them to claims the researchers never made, such as a fixed percentage of sales going to whoever responds first. Below we separate what was measured from what was inferred, so your team can set a response standard on solid ground.

The Lead Response Management Study was presented in October 2007 by Dave Elkington of InsideSales.com and James Oldroyd, then at MIT's Sloan School of Management. It analyzed three years of data from six companies, covering more than 15,000 web leads and more than 100,000 call attempts.

Its headline finding is the one most often quoted: the odds of contacting a lead if called within 5 minutes versus 30 minutes drop 100 times, and the odds of qualifying that lead drop 21 times. Even the step from 5 to 10 minutes mattered, with contact odds falling about 5 times. Waiting a full hour cut contact odds by more than 10 times.

The study also looked at persistence. After about 20 hours, additional dials actually reduced the odds of making contact and qualifying the lead, and the authors said they did not know why. The practical reading is that the first hours carry most of the value, and that repeated calls a day later are a weak substitute for a fast first reply.

• Best days to make contact: Wednesday and Thursday. Thursday was 49.7% better than the worst day, Tuesday.
• Best time to make contact: late afternoon, 4 to 6 pm, which beat 11 am to noon by 114%.
• Best time to qualify: 8 to 9 am and 4 to 5 pm.
• What it did not measure: the authors state the study did not address close ratios.

In "The Short Life of Online Sales Leads," published in Harvard Business Review in March 2011, James Oldroyd, Kristina McElheran and David Elkington audited 2,241 U.S. companies by submitting a web inquiry and timing the reply. As quoted by SmartCompany, 37% responded within an hour, 16% within one to 24 hours, 24% took longer than 24 hours, and 23% never responded. Among companies that did respond within 30 days, the average response time was 42 hours.

The same article reported a second analysis of 1.25 million leads at 42 U.S. companies (29 consumer-facing and 13 business-to-business). Firms that contacted a lead within an hour were nearly seven times as likely to qualify it as firms that waited longer, and more than 60 times as likely as firms that waited 24 hours or more. Qualifying here meant a meaningful conversation with a decision maker, not a closed sale.

A 2008 study by InsideSales.com and the research firm Incoho, reported by destinationCRM, tested the top web companies by traffic. Of the companies contacted, 8% responded by phone, 47% responded by email and 45% never responded at all. The same researchers said that calling back within five minutes produced a 90% increase in contact rate.

This is an older and smaller data point, but it shows the pattern has been visible for years: a large share of inquiries simply go unanswered.

Industry audits suggest many service businesses still respond slowly. Clio's 2019 Legal Trends Report included a secret shopper study of 1,000 law firms. Only 40% responded to an emailed inquiry, 56% of calls were answered by a person and 39% went to voicemail, and more than half of firms did not return voicemails within 72 hours. Firms that did reply by email usually did so within 24 hours, which led Clio to note that firms typically respond within 24 hours or not at all.

Quality was a problem even when firms did respond. Clio rated 7 in 10 email responses and 6 in 10 phone responses as unsatisfactory, and nearly all voicemail responses fell short. A reply that arrives fast but does not answer the question or offer a next step still loses the client.

The client side of the same report shows the gap. In Clio's survey of 2,000 U.S. consumers, 82% said timeliness was important and 79% expected a response within 24 hours.

Event venues show a similar expectation. Tripleseat's 2025 Consumer Event Planning Insights survey, reported in July 2025, found 77% of consumers consider a venue's responsiveness highly important when booking, with 42% rating it very important and 35% extremely important. Tripleseat sells venue booking software and did not publish its sample size in that article, so treat it as a directional signal.

Several popular claims go further than the research. The most common problems are mixing up contact, qualification and sales, and presenting a single company's sample as a universal rule.

• "You are 100 times more likely to close a lead in 5 minutes." The 100x figure from the MIT study is about the odds of making contact, not closing a sale.
• "21 times more likely to convert." The 21x figure is about qualifying a lead, which the study defined as a qualifying conversation.
• "60 times more likely to win the deal." The HBR 60x figure compares qualification at under one hour with 24 hours or more, not sales.
• Precise numbers with no study attached. If an article cites a percentage of buyers who choose the first responder and links only to another blog, look for the original before you repeat it.
• Old samples. The core studies used data from 2004 to 2010 and mostly business-to-business and consumer web leads. Channels like texting and chat have changed since, though the industry audits above suggest slow response is still common.

The research supports a clear standard even if you discount the more dramatic figures: respond to every inquiry, respond within minutes during business hours, and make sure no inquiry falls through. The biggest losses in every audit came from businesses that never replied at all, and fixing that takes a defined process with clear ownership.

A dental practice, a family law firm and an event venue face the same problem in different forms. Inquiries arrive by form, call, text and chat, often while the team is with a client. The fix is to route every inquiry to one place, send an immediate acknowledgment that sets a clear expectation, and alert the right person to make a real reply.

• Measure your current response time on a sample of recent inquiries, by channel.
• Set a written target, such as a personal reply within 15 minutes during business hours and by the next morning after hours.
• Send an instant acknowledgment by text or email so the customer knows they were heard.
• Make sure missed calls trigger a text back and a task for someone on the team.
• Review unanswered inquiries weekly until the count reaches zero.

When you cite lead response research in your own planning or marketing, name the study and what it measured. Saying the odds of reaching a lead dropped about 100 times at 30 minutes in a 2007 study of 15,000 web leads is accurate. Saying fast responders close 100 times more deals is not.

The safest use of these figures is internal: they justify the time and tools it takes to answer quickly. Your own data matters more. Track first response time and the share of inquiries that become booked appointments, and compare the two over a quarter. Monvell's Communications and Automation work starts with exactly that measurement, then sets up acknowledgments, routing and missed-call follow-up so the target your team sets is one it can hit.