SDR vs BDR: What Each Role Actually Does All Day
By Jimmy Smith, Co-founder of STAOS · · 6 min read
An SDR (sales development representative) usually works inbound leads: people who already raised a hand. A BDR (business development representative) usually works outbound: cold accounts that have never heard of you. Both book meetings for closers rather than closing themselves. Plenty of companies use the two titles interchangeably, so always ask whether the role is inbound or outbound before you take it.
I have made more than 80,000 cold calls and hired for both seats. The titles matter less than most people think and the direction of the work matters more than almost anything, because inbound and outbound are genuinely different jobs that happen to share a job description.
What is the difference between an SDR and a BDR?
Direction of the work. SDRs respond to inbound interest, qualify it, and book meetings. BDRs go find accounts that have not raised a hand, prospect them cold, and create interest that did not exist. The skills only partly overlap.
| SDR (inbound) | BDR (outbound) | |
|---|---|---|
| Where leads come from | Marketing, demo requests, content | Lists the rep builds and works |
| First contact | Person already knows the company | Complete cold start |
| Core skill | Fast qualification, speed to lead | Research, persistence, opening |
| Daily volume | Lower touch count, higher connect rate | Much higher touch count, lower connect rate |
| Main metric | Speed to lead, qualified meetings | Meetings booked, connect rate |
| Rejection load | Moderate | Heavy, and this is the real difference |
| Ramp | Faster | Slower, roughly 3.2 months on average |
The rejection load is the part nobody puts in the job posting. An inbound rep talks to people who asked to be talked to. An outbound rep talks to people who did not, all day, and most of them say no. Those jobs feel completely different by week three even though they look identical on a résumé.
Do the titles actually mean this everywhere?
No. Roughly half of companies use SDR and BDR the other way around, and plenty use one title for both jobs. Ask what the role does rather than what it is called.
If you are interviewing, the three questions that resolve it in about thirty seconds: where do my leads come from, how many are inbound versus outbound, and what is the daily activity expectation. The answers tell you the actual job. The title tells you almost nothing.
What do SDRs and BDRs get paid?
Both are typically base plus variable, with the variable tied to qualified meetings booked or meetings held. Outbound roles usually carry a slightly higher base to compensate for the harder work and the higher rejection load.
The structure worth checking before you accept anything: is the commission paid on meetings booked or meetings held? Booked is easier and encourages booking anyone with a pulse. Held is harder and encourages booking people who show up, which is what the company actually wants and what makes you better at the job.
If you want to model what a comp plan actually pays at different attainment levels before you sign it, the commission and OTE calculator will do it in a minute. Current benchmarks put SDR and BDR quota attainment at 45% to 60%, which is higher than AEs manage, because activity-linked quotas are more controllable than revenue ones.
Which role should you hire first?
If marketing is producing more leads than your closers can work, hire an SDR. If nothing is coming in and you need pipeline created from nothing, hire a BDR. Hiring the wrong one is the most common sales-development mistake at agencies.
- Leads arriving faster than they get worked? SDR. The problem is speed to lead and qualification.
- No inbound to speak of? BDR. And be honest that this is a harder hire with a longer ramp.
- Under 3 closers? Probably neither yet. A setter without enough closers to feed just creates a queue of meetings nobody runs well.
- Founder still closing everything? Fix that first. Feeding more meetings into a founder bottleneck makes the bottleneck worse, not better. That is a structure problem, covered in fractional sales manager for agencies.
How long until a new setter is productive?
About 3.2 months on average, and six to eight weeks with a structured onboarding program. Most teams have no written ramp plan, which is why their new setters take twice as long as they need to.
Bridge Group data puts average SDR ramp at roughly 3.2 months, and companies with structured onboarding get reps productive substantially faster. Average tenure in the seat runs about 1.8 to 2.2 years, so a slow ramp eats a real fraction of the total productive time you get from the hire.
That arithmetic is worth doing before you skip building a ramp plan. Two extra months of ramp against roughly 22 months of productive tenure is close to 10% of the value of the hire, given away for want of a written first-30-days.
If you are starting in one of these seats
The honest advice, from someone who did the volume.
- Learn the product well enough to have an opinion. Reading a script is obvious in the first ten seconds of a call.
- Get your opener right and then stop changing it. Most people change the opener every week and never learn whether any version works. Run one for 200 calls, then judge it.
- Track connects, not dials. Dials measure effort. Connects measure whether you are calling at the right time, with the right list.
- Book meetings that show up. A booked meeting that no-shows helped nobody, including you. Confirm the value, confirm the time, send the invite while they are on the phone.
- Ask to listen to closer calls. The fastest way out of the setter seat is understanding what happens after the handoff.
Free tools that help: the cold call script generator builds an opener, a reason for the call, two qualifying questions, and a rebuttal. The remote cell dialer is a free CSV power dialer with dispositions built in. The cold email generator writes sequences and checks them for spam words. All of them are in the tools for sales reps collection, and the prompt library has a full outbound set at prompts for sales reps.
Frequently asked questions
What is the difference between an SDR and a BDR?
SDRs typically work inbound leads from people who already raised a hand. BDRs typically work outbound, prospecting cold accounts that have never heard of you. Both book meetings for closers rather than closing themselves.
Do SDR and BDR mean the same thing?
Often, yes. Many companies use the titles interchangeably or reverse them. Ask where the leads come from and what the daily activity expectation is rather than relying on the title.
Which pays more, SDR or BDR?
Outbound roles usually carry a slightly higher base because the work is harder and the rejection load is heavier. What matters more is whether commission is paid on meetings booked or meetings held.
How long does it take an SDR to ramp?
About 3.2 months on average according to Bridge Group data, and six to eight weeks for teams with a structured onboarding program.
Should I hire an SDR or a BDR first?
Hire an SDR if marketing produces more leads than your closers can work. Hire a BDR if there is no inbound and pipeline has to be created from nothing. If you have fewer than three closers, you probably need neither yet.
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