How Much Does It Cost to Replace an SDR? A Cost Model, Not Just a Salary

How much does it cost to replace an SDR?

I don't do the hiring for clients, but I'm often the person left holding a half built pipeline the week a client's SDR hands in notice, so this is a cost I watch from the outside more often than most people who actually sign the offer letter. The honest answer is that the salary you pay a replacement is the smallest and most visible part of the real cost. The bigger pieces are recruiting time, the weeks the seat sits empty or under capacity, and the first few months a new hire spends ramping to full output rather than producing it from day one. Stacked together, those pieces usually land somewhere between 2,000 and 9,000 euros per departure for an in-house Baltic-market SDR, before you count the manager hours spent on the transition or the relationships a departing rep was partway through building.

How often does this actually happen?

More often than most hiring plans assume. The Bridge Group's 2025 SDR report (351 B2B companies, checked 3 November 2026) puts median annual SDR attrition at 40%, with the middle half of companies somewhere between 21% and 57%. Of that 40%, the report splits it as 13% involuntary, 11% voluntary, and 16% promoted out of the role. Average tenure in the seat sits at 1.9 years, the highest the report has recorded since the early 2010s, with 58% of companies reporting an average tenure of 12 to 23 months. A team that treats its SDR headcount as fixed is quietly budgeting for one departure roughly every two and a half years per seat, whether anyone plans for it or not.

The four layers of real cost

Most of the "it costs X to replace an SDR" numbers floating around online are a single recruiter's fee or a single salary multiple, which understates the real picture. I split it into four layers instead, and only the first one is optional:

• Recruiting cost. Sourcing, screening and interviewing time, whether you do it yourself or pay someone else to.
• The vacancy gap. The stretch between the old rep's last productive day and the new one's first productive day, during which the seat produces nothing.
• Ramp inefficiency. The months a new hire spends below full output while they learn the ICP, the message and the tools, during which you are paying full salary for partial results.
• Knowledge and relationship loss. Accounts mid-conversation, context the departing rep held in their head and never wrote down. This one is real but I won't put a number on it below, since it depends entirely on whether the process was ever documented in the first place.

Recruiting cost: doing it yourself versus paying an agency

SHRM's own benchmarking data (checked 3 November 2026) puts the average cost per hire across all non-executive roles at nearly $4,700, though that figure is not sales specific and the median across SHRM's sample sits far lower, so treat it as a rough upper anchor rather than a sales benchmark. For a Baltic-market SDR specifically, I use two assumptions: if you source and screen the hire yourself, assume 15 to 20 hours of a manager's time at an internal rate of around 40 euros an hour, roughly 600 to 800 euros. If you pay a recruiter instead, assume a fee of 15 to 20% of first year gross salary, which on the 2,000 to 2,800 euro monthly gross I use for a Lithuania-based SDR in my Baltics outbound budget breakdown works out to roughly 4,300 to 5,800 euros, in the same range as SHRM's general figure.

The vacancy gap: notice periods and how long the seat actually sits empty

In Lithuania, an employee resigning without cause owes the employer 20 calendar days' written notice under Article 55 of the Labour Code (checked 3 November 2026), and keeps getting paid through it. That notice period softens the gap compared with markets where two weeks is a courtesy rather than a legal minimum, but it rarely covers the whole hole. Assume 4 to 6 weeks from posting the role to a signed offer, a number you should replace with your own recent hiring timeline. Subtract the 20 days of overlap and you are left with roughly 2 to 4 weeks where the seat sits truly empty: no sends, no replies, no meetings from that territory. At the 9 meetings a month median SDR quota The Bridge Group's own data puts on a fully ramped rep, a 3 week empty seat is a real, if usually unbudgeted, gap in the pipeline a founder or sales manager was counting on.

Ramp inefficiency: paying full salary for partial output

The same Bridge Group report puts average SDR ramp time at 3.0 months, the lowest the report has recorded since 2010, down from a 2014 peak of 3.8 months. A new SDR's mailbox doesn't even clear the 20 to 30 emails a day I run for clients until it is through 3 to 4 weeks of warmup, which lines up almost exactly with the first third of that ramp: a meaningful chunk of a new hire's early output is capped by infrastructure, not by skill or effort. Assume a simple ramp curve of 30% output in month one, 60% in month two and 90% in month three against a fully ramped rep. Summed against three months at 100%, that is roughly 1.2 months of salary paid for output you didn't get, on top of whatever the vacancy gap already cost.

A worked example, with every assumption labeled

Take a Lithuania-based SDR on 2,400 euros gross a month, the midpoint of the range above, with a 1.77% employer social cost on top per my Baltics breakdown, so roughly 2,442 euros a month in full employer cost. Sourcing the replacement yourself costs 600 to 800 euros in manager time. The vacancy gap, after the 20 day statutory notice overlaps with the search, runs 2 to 3 weeks with no sends from that seat, costing roughly 5 to 9 meetings against the 9 a month median quota, a real pipeline gap rather than a cash one. Ramp inefficiency over the following 3 months adds the equivalent of 1.2 months of employer cost, about 2,900 euros, paid for partial output. Add it up and a single DIY-recruited replacement costs roughly 3,500 to 3,700 euros in cash terms plus a 5 to 9 meeting pipeline hole, before counting any manager hours spent on the transition itself. Swap in your own salary, notice period and hiring timeline once you have them; the structure of the model matters more than my specific numbers.

What this costs a 5 person team over a year

At the Bridge Group's 40% median attrition, a 5 person SDR team loses an average of 2 reps a year. At the cash-cost range above, that is roughly 7,000 to 17,400 euros a year in pure replacement overhead, on top of whatever pipeline those 2 vacant and ramping seats failed to produce, and this is before counting a bad year that lands closer to the 57% upper end of Bridge Group's reported range rather than the 40% median. Teams that have never run this maths tend to treat each departure as a one-off surprise rather than a recurring, budgetable line item.

Four ways to actually reduce this cost

Most of the levers here are cheaper than they look, because none of them require paying someone more to stay:

• Set ramp expectations that match reality. Judging a new SDR against a fully ramped quota in month one manufactures the exact frustration, on both sides, that speeds up the 11% voluntary-departure slice of Bridge Group's attrition split.
• Document the system, not just the hire. If the ICP, the message and the sequence only live in the departing rep's head, the next hire re-derives all of it from scratch, which is most of what makes the 3 month ramp take 3 months rather than 1.
• Size accounts and quota to the tier of personalization you actually run, not a flat number copied from a job posting; I go through that math in how many accounts an SDR should carry at once.
• Check whether the role itself is structured to last. A role with no visible next step tends to see its best performers leave through the 16% promoted-out slice faster than the comp plan can keep up, which is a different problem than the 11% voluntary slice and needs a different fix.

When turnover is a comp problem, not a people problem

Before assuming a team is just unlucky with hires, check the comp plan and the quota against market reality. A rep who cannot hit a reasonable path to the 9 meetings a month Bridge Group reports as the current median quota, through no fault of their own, is being set up to either quit or get managed out, both of which land inside the cost model above. I cover how to set that ratio and quota realistically in SDR to AE ratio, and the account-load math that usually sits underneath a missed quota in the accounts-per-SDR article linked above. Fixing the structural problem is almost always cheaper than absorbing another round of the replacement cost this article models.

Does this change the build versus outsource decision?

It should factor in, though it rarely changes the decision on its own. An outsourced arrangement trades the turnover cost modeled here for a different set of trade-offs entirely, control over the message, visibility into the day to day work, and what happens to the relationships and data once the contract ends. I weigh both sides in fractional SDR versus agency. What this article should change is the comparison itself: if you are pricing an in-house hire against an agency retainer using only the headline salary, you are comparing the agency's real number against an understated one.

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