Cost of a booked meeting, AI SDR vs human SDR

Cost per booked meeting equals the fully loaded monthly cost of your outbound motion divided by the number of meetings it books in that month. That is all. The hard part is not the division, it is being honest about the top line. Most teams divide salary by meetings and stop there, which makes outbound look cheaper than it is and makes every alternative look expensive by comparison.

Fully loaded means every cost that would disappear if you switched the motion off tomorrow. For a person that includes pay, payroll taxes and benefits, the tools they log into, the time a manager spends coaching them and the months they spend learning before they produce. For software it includes the subscription, the inboxes and domains it sends from, the data it needs and the human time that still goes into reviewing replies and taking the meetings.

Booked meetings also needs a definition before you start counting. A meeting that was booked and then never happened is not the same as a meeting that took place with the right person. Pick one definition and use it for both sides of the comparison, otherwise you are comparing a held meeting on one side with a calendar invite on the other.

• Cost per booked meeting = fully loaded monthly cost / meetings booked that month
• Cost per held meeting = cost per booked meeting / share of booked meetings that actually take place
• Cost per qualified opportunity = cost per held meeting / share of held meetings that turn into a real opportunity

Start with the visible line, base pay and variable pay. Then add what the visible line hides. In this guide we use round, clearly hypothetical numbers so the arithmetic is easy to follow. Replace every one of them with your own payroll figures before you draw a conclusion.

Say your SDR earns a base of 5 000 USD a month and an average variable of 1 500 USD a month. Say payroll taxes, insurance and benefits add 20 percent of base, so another 1 000 USD. Say the tool stack around one seat (a data provider, a sequencing tool, a dialer, a LinkedIn seat, a calendar tool and a slice of the CRM licence) comes to 400 USD a month. Say the sales manager spends ten hours a month on this person through one to ones, call reviews, list building help and pipeline meetings, and that an hour of the manager costs the company 80 USD. That is 800 USD a month of management time.

Now divide. If this fully ramped SDR books 10 meetings in a month, the cost per booked meeting is 870 USD. If they book 15, it is 580 USD. If they book 6, it is 1 450 USD. The number moves a lot with output, which is why you should run the division with your real average over several months, not with your best month.

The table above describes a fully productive rep. A new hire is not one. They learn the product, the market, the objections and the tools, and during that time they cost the full monthly amount while booking a fraction of the meetings. On top of that you paid to hire them: recruiter fees, job ads, the hours your team spent interviewing.

Say hiring costs 6 000 USD in total and the rep books 2 meetings in month one, 5 in month two and 8 in month three, then 10 a month from month four onward. Over the first three months they cost 26 100 USD plus the 6 000 USD hiring cost, which is 32 100 USD for 15 meetings. That is about 2 140 USD per booked meeting during ramp.

Over the full first year the same rep costs 12 times 8 700 USD plus 6 000 USD, which is 110 400 USD, and books 15 plus 90 meetings, which is 105. The first year cost per booked meeting is about 1 051 USD, not the 870 USD the steady state table suggested. If the rep leaves after a year and you start again, you pay the ramp a second time. Tenure is therefore part of the formula, even if it never appears on a payslip.

• Add the hiring cost to the first year, once per hire
• Count ramp months at full cost and real output
• If average tenure is short, spread the ramp over that tenure, not over an imaginary three years

Management time is the line most often left out because it is already paid for inside the manager's salary. It still has a cost: every hour the manager spends coaching one SDR is an hour not spent closing, hiring or fixing the process. If your manager runs a team of six SDRs, look at their calendar for a normal week and count how many hours go to the team. Divide by six and multiply by the manager's hourly cost. That number belongs in each SDR's fully loaded monthly cost.

An AI SDR is software that does the research and writing work of the role: finding accounts that match your ideal customer, reading their public website and signals, writing a first line and a reason to reply, sending the sequence, following up and sorting replies. If the term is new, our page on the AI SDR explains what the role covers and what stays with a person.

The fully loaded cost of an AI SDR has four parts. The subscription. The inboxes and domains it sends from, which you own and pay for with your email provider. Any data you buy on top of what the product finds. And the human time that remains: someone reads the interesting replies, does the LinkedIn tasks by hand, and takes the meetings.

Using OutreachAuto Growth as the subscription line, the price is 249 USD billed monthly or 124 USD a month billed yearly. Say you connect 10 inboxes on three secondary domains and your email provider charges about 7 USD per inbox per month, so 70 USD, plus a few dollars a month for the domains. Say a rep or founder spends 20 hours a month on replies, LinkedIn tasks and meeting prep, and that hour costs 50 USD, so 1 000 USD.

Notice that the biggest line is still human time. That is correct and it is the point of an honest comparison. Software removes the research and the typing, it does not remove the conversation. If you leave the human line out, your AI cost per meeting will look unrealistically low and you will be disappointed later.

The AI side uses the same formula. We are not going to tell you how many meetings it will book for you, because that depends on your offer, your market, your list and your domains far more than on any tool. Instead, here is what the cost per booked meeting looks like at different outputs, so you can see where your own number would land.

The useful number here is the break even point. Divide the AI fully loaded cost by your human cost per meeting. With the hypothetical figures in this guide, 1 323 USD divided by 870 USD is about 1.5. In other words, if the AI setup books two or more meetings in a month that your team would otherwise have had to pay a fully ramped SDR to book, it is cheaper per meeting at these inputs. Put your own numbers in and see where your break even sits.

There is no ramp line on the AI side in the same sense, but there is setup. Secondary domains and new inboxes need a warmup period before they carry real volume, and your first sequences need a few rounds of editing before they sound like you. Count those weeks honestly: if month one books very little, include it in your first quarter average the same way you included the human ramp.

A cheap meeting that never happens costs more than an expensive one that turns into a deal. Before you trust any cost per booked meeting, run the next two divisions as well.

Say 80 percent of booked meetings actually take place and half of the held meetings become a real opportunity. Then the cost per held meeting is the cost per booked meeting divided by 0.8, and the cost per qualified opportunity is that result divided by 0.5. At 870 USD per booked meeting, that is about 1 088 USD per held meeting and about 2 175 USD per qualified opportunity. Run the same arithmetic for both motions with their own show and qualification rates, because they will not be equal.

This is where human SDRs often earn their cost back. A person on the phone can qualify before booking, handle a vague objection, and send the account executive a richer handover. Software can classify a reply as a meeting request and propose times, but it does not hear tone of voice. If your human team has a much higher show rate or qualification rate, that difference belongs in the comparison.

• Track show rate separately for each motion
• Track the share of held meetings that become opportunities
• Compare cost per qualified opportunity, not cost per calendar invite

There are motions where a person is simply the better tool, and the arithmetic should not hide that. If you sell to a short list of very large accounts, each account deserves weeks of multi threaded work across several people, calls, events and referrals. Volume is not the constraint there, judgement is.

Phone heavy markets are another case. If your buyers answer the phone and respond to a well run call, an SDR on the phone produces conversations that email does not. The same applies when the product is new to the market and the pitch itself is still being discovered: a person who hears objections live learns faster than any sequence report can show you.

Finally, relationships compound. A good SDR who stays for years builds a network of contacts, knows which champion moved to which company and becomes the obvious next account executive. That value does not appear in a monthly cost table, and it is a fair reason to keep people in the role.

• Few, very large accounts with many stakeholders
• Markets where buyers still pick up the phone
• A pitch that is still being discovered
• Teams that grow account executives from their SDR bench

Software wins where the work is repetitive and the market is wide. Researching hundreds of companies a month, writing a specific first line for each, following up on schedule, pausing when someone is out of office and stopping the moment someone replies are tasks a person can do but should not spend their week on. A wide mid market or small business segment with a clear ideal customer is the classic fit.

It also wins on consistency. Follow ups do not get skipped on a busy Friday, opt outs go straight to one suppression list, and every send respects the daily limit per inbox. For a founder who has no SDR at all, the comparison is not AI versus human, it is AI versus nobody, and the formula is still useful: divide what you spend by what it books.

For a side by side view of the two roles beyond cost, read our AI SDR vs human SDR comparison.

In practice many teams do not choose one or the other. They let software handle prospecting, research, first drafts, follow ups and reply sorting, and they keep one person for the conversations, the LinkedIn work and the meetings. In the formula, that means the human line shrinks from a full salary to the hours that genuinely need judgement, while the meeting count depends on how many accounts you can reach with real personalization. If you go this way, put the person's partial cost on the AI side of the table and compare that total against a full SDR.

Before you take a decision, fill in each line with numbers from your own payroll, your own tools and your own pipeline history.

• Base and variable pay, averaged over the last six months
• Taxes, insurance and benefits as a share of base
• Every tool seat attached to the role
• Manager hours per month, multiplied by the manager's hourly cost
• Hiring cost and ramp months, spread over real average tenure
• Subscription, inboxes, domains and data for the software option
• Human hours that remain on the software option, at a real hourly cost
• Meetings booked, show rate and qualification rate for each motion

If the result is close, choose the option that is easier to reverse. A software subscription can be stopped at the end of the paid period; a hire cannot be undone as cleanly. If the result is far apart, you have your answer.