In-House SDR vs Outsourced Outbound: The Real Cost

I have been the bad hire. More than once. Hired, handed a target, and left to figure it out. No process. No onboarding. No real plan for how I was supposed to win. Same person, different system, completely different results.

So when a founder asks me whether to hire an in-house SDR or buy outsourced outbound, I do not start with the monthly number. I start with the honest cost of each, and what you are actually left holding when it ends. Here is the real in-house SDR vs outsourced outbound comparison, in UK terms, with every figure sourced.

What does an in-house SDR cost in the UK?

A single in-house SDR realistically costs about £55,000 to £60,000 in year one. The base salary is only the start. Add commission, employer's National Insurance, recruitment fees and the tooling stack, and the loaded cost climbs well past the headline number on the job advert.

According to Glassdoor UK, a Sales Development Representative base salary sits at roughly £30,000 to £35,000. That is the figure most founders budget for. It is also the smallest part of the real bill. The loaded cost looks more like this:

• Base salary: £30,000 to £35,000, per Glassdoor UK.
• Commission or bonus on booked meetings, on top of the base when they hit target.
• Employer's National Insurance on the whole salary.
• A recruitment fee to find and hire them in the first place.
• Tooling: CRM, data and enrichment, a dialler, email and sequencing software.

This is not just my maths. According to UK agency Flowd, a single in-house SDR's true cost lands at £60,000 to £67,000 a year on a £30,000 to £38,000 base, once commission, National Insurance, tools and recruitment fees are counted. Whichever end you land on, the salary line hides roughly half the real cost.

What does outsourced outbound cost?

Outsourced outbound is bought as a monthly fee, not a salary. In the UK it typically runs from around £3,000 a month at the entry end to £10,000 a month for a dedicated programme. There is no National Insurance, no recruitment fee, and no tooling stack to buy separately. The fee bundles all of it.

The published numbers back this up. According to Sopro's own pricing page, fully managed B2B outbound starts at around £3,000 a month with no minimum contract. According to ORRJO's 2026 UK-versus-US comparison, a dedicated outsourced SDR programme in the UK runs £3,500 to £10,000 a month. According to Flowd, outsourced SDR retainers start around £4,000 a month and cover data, copy, deliverability, outreach and the tech.

For context, the US market sits higher. According to memoryBlue's published rates, a dedicated outsourced SDR starts at around $11,000 a month (US), and according to Leadium's 2026 pricing guide, outsourced SDR programmes run roughly $3,000 to $14,000 a month (US). Keep the UK sources as your spine and treat the dollar figures as global context.

One honest caveat. That monthly fee buys wildly different things. At the low end it can mean volume and spray-and-pray. At the high end it can mean a genuinely built system. Price alone tells you almost nothing. The questions that follow do.

In-house SDR vs outsourced outbound: the full comparison

On paper, outsourced outbound is cheaper and faster: a fixed monthly fee against a loaded £55,000-plus salary, and meetings in weeks not months. In-house wins on control and long-term ownership. The real decision is not the monthly number. It is what you are left holding when the engagement ends.

How long until each starts booking meetings?

A new SDR needs months to ramp: learning the product, the market and the message before they book consistently. Even once they are up to speed, most of their week is not spent selling. An outsourced team is already ramped, so meetings usually land in weeks, not quarters.

That figure matters both ways. According to Salesforce's State of Sales, around 72% of a rep's week goes on non-selling work, with only about 28% on actual selling. In a new SDR's first weeks, the pure-selling share is even smaller: they are building lists, learning the tools and finding their feet. An outsourced team has already built that muscle.

But speed is not the whole story. A fast agency booking junk meetings is worse than no meetings. It burns your calendar, your reputation and the prospects it touches. Cut corners in outbound and it shows. Fast only wins when the meetings are real.

What are the hidden costs of an in-house hire?

The salary is visible. The hidden costs are not: the management hours you pour in, the ramp you pay for before any results, and the churn risk. Around 30% of new hires leave within their first 90 days. Hire before your system is ready, and you are set up to repeat the cycle.

That 30% figure comes from Jobvite (general data, largely US, so treat it as a risk signal rather than a UK-specific fact). But the pattern is one I have lived. The biggest problem I have seen in sales? Reps get hired, handed a target, and left to figure it out. No process. No support. No real plan for how they are supposed to win. And when they miss the number, it is filed as a "bad hire".

It is rarely a talent problem. It is a system problem. Every failed hire costs you the recruitment fee, the ramp months, your own management time, and then the whole restart. That is the real hidden cost, and it does not show up on the job advert.

When is in-house right, and when is outsourced?

In-house is right when outbound is core to your business for the long term, your product is complex enough to need deep in-house knowledge, and you have the process and management time to make a hire succeed. Outsourced is right when you need speed, want to de-risk, or are not ready to hire yet.

Hire in-house when a rep genuinely needs to live and breathe your product: long sales cycles, technical buyers, nuance that takes months to learn. Hire in-house when you are building permanent capacity and already have a proven playbook to hand a new starter. In those cases, ownership and depth are worth the ramp and the risk.

Outsourcing has a failure mode too, and it is worth naming honestly. The black box. Standard agencies rent you a pipeline and keep the engine: proprietary data, tools you never see, sequences written in their voice not yours. When you stop paying, the pipeline goes to zero and you own nothing. So the one question that cuts through the pricing: do you own the system when it ends?

Can you get the best of both?

There is a third path. A partner runs your outbound now, but builds the whole system inside your own CRM and domains: the targeting, the messaging, the sequences, the dashboards. You get meetings early. Then, when you are ready to hire, you own the engine and hand it to your first in-house rep.

This is exactly why Chris May and I built JumpLead the way we did. We run your outbound and fix the sales engine underneath it: the process, the messaging, the playbooks. So your next hire walks into a working system, not a blank page. You are never renting a pipeline you cannot keep.

The point is not that outsourcing always wins. It does not. The point is this: do not gamble on a hire before you are ready, and do not rent a pipeline you never get to own. Build the foundation first. Then decide who runs it.