In-house SDR or outsourced outbound: what does each really cost in the UK?

On paper the choice looks simple. A sales development representative (SDR) costs a salary, and a UK SaaS SDR earns about £33,000 base and £49,000 on target, according to Sales Recruit UK's June 2026 salary guide. An outsourced outbound programme costs a monthly fee that, over a year, can look higher than that salary.

The salary is the smallest part of the picture. Add employer National Insurance, pension, recruitment, tools, data, management time and the months before a new SDR is fully productive, and UK estimates for the first year run from £65,000 to £85,000 (ORRJO, January 2026) and up to £97,000 (Supernova, 2026). Outsourced SDR work, meanwhile, runs from £2,000 a month for a freelancer to £12,000 or more for a fully managed programme (Air Marketing, June 2026).

This guide puts both sides in one place: the full cost of an in-house SDR, what outsourced outbound costs and covers, a worked example, and when each makes sense. It covers the market. Our own fees are on what it costs.

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

Two to three times the base salary in the first year, once everything is counted. The line items below come from UK sources published in 2026, with the rates set by government for National Insurance and pensions.

Sales Recruit UK also notes that London SDR base pay is about 19% higher than elsewhere, and that SDR packages are deliberately weighted towards base pay. If your firm has not already used its Employment Allowance, which lets eligible employers cut their National Insurance bill by up to £10,500 a year, a new hire may cost less in National Insurance than the figures here.

Example: take a UK SaaS SDR who earns the full £49,000 on target. Employer National Insurance adds about £6,600 and the minimum pension about £1,300. A recruitment fee at 20% of base adds £6,600, tools and data £6,000, and management time £8,000. That makes about £77,500 for the year, before equipment, training and the lower output of the first months. These are round, illustrative figures built from the sources above.

#What does outsourced outbound cost in the UK?

It depends on how much of the work you buy. Air Marketing's June 2026 guide gives four UK bands, and other UK providers publish similar figures.

A fully managed programme, in Air Marketing's description, covers "campaign strategy, target market definition, data management, SDR resource, performance management, coaching, reporting, continuous optimisation". A freelancer usually covers the prospecting itself and leaves strategy, data and reporting to you. Pay-per-meeting pricing works differently again, and our guide to what pay-per-meeting lead generation costs explains what counts as a meeting.

What outsourcing does not cover is your side of the work: taking the meetings, closing the deals, keeping your CRM up to date, and giving the agency feedback on which meetings were worth having.

#How do in-house and outsourced compare side by side?

On annual cost the ranges overlap. The differences are in how quickly meetings start, who carries the risk of a bad hire, and who keeps what is learned.

#Why is the in-house cost riskier than the salary suggests?

Because the salary is only paid in full if the hire works out, and the averages say many do not. Sales Recruit UK, citing RepVue data, found only about 66% of UK SDRs hit quota. ORRJO puts average SDR tenure at 14 months, and Clarify, updated in September 2025, gives a mean of 14.2 months and average SDR turnover of 39%. Virtual Sales puts junior sales turnover in the UK at 35%.

Put ramp and tenure together. Example: an SDR who takes four months to ramp and leaves at month fourteen gives you about ten months at full speed, then you pay to recruit and ramp again. The illustrative numbers are round, but the pattern is why outsourcing firms argue their case on risk as well as price.

That said, weigh who is making the argument. Air Marketing, ORRJO, Supernova, Virtual Sales and Clarify all sell outsourced SDR services, and Virtual Sales cites no outside sources for its figures. Sales Recruit UK is a recruiter. Their numbers are useful, but the in-house totals are best read as the higher end.

#Worked example: cost per qualified meeting over twelve months

The fairest comparison is cost per qualified meeting held, over the same twelve months.

Example: an in-house SDR costs about £77,500 in the first year, as above. After four months of ramp, they hold 10 qualified meetings a month for eight months: 80 meetings, or about £970 each. A managed programme at £6,000 a month costs £72,000 a year. If it starts holding meetings in the second month and reaches the same 10 a month, that is about 110 meetings, or about £650 each.

The assumption that matters most is the meeting rate, and it is the one to test. A good in-house SDR in their second year, with a playbook and no recruitment fee, can beat either figure. A weak agency that books meetings with the wrong people can cost far more per meeting that matters. These are round, illustrative figures, not quotes.

#When does an in-house SDR make more sense?

When outbound is a permanent part of how you sell, and you have someone to manage it. Hiring works best when:

• You already have a written pitch, a defined buyer and a sales leader or founder with time to coach.
• The product or service takes months to learn, so knowledge built in the team compounds.
• You plan to build a team, not a single role. Clarify argues that SDR teams of fewer than ten are "unlikely to be cost-effective in-house".

If the pitch still lives in the founder's head, read how to move beyond founder-led sales before hiring.

#When does outsourcing make more sense?

When you need meetings soon, want to prove a channel before committing to a salary, or have no one to manage an SDR. It also suits firms selling into a defined market of a few thousand firms, where each approach needs research and a poor one costs you a prospect. Our comparison with a lead generation agency explains the difference between volume outreach and researched outreach.

#Can we combine the two?

Yes. ORRJO describes a hybrid in which "outsourced SDRs" handle top-of-funnel prospecting while "your in-house team then handles the more complex accounts." Another version is sequential: outsource for six to twelve months to prove the channel and write the playbook, then hire an SDR who inherits working messages, a defined buyer and data you own.

#How do we decide between them?

Run the same four steps for both options, using your own numbers rather than anyone's averages.

#Step 1: Put a value on a qualified meeting

Work out what a new client is worth and how many qualified meetings it takes to win one. That gives you the most you should pay per meeting.

#Step 2: Cost the in-house option fully

Use the table above with your own salary, location and tools, and include recruitment, management time and a realistic ramp.

#Step 3: Get outsourced quotes against the same definition

Give every agency your definition of a qualified meeting and ask for the monthly fee, the expected meetings held and the first term.

#Step 4: Compare cost per qualified meeting held over twelve months

Include ramp for the hire and the first month for the agency. Then check who owns the data and the conversations under each option.

#What to do this month

1. Write down what a new client is worth to you and how many qualified meetings it usually takes to win one.
2. Cost an in-house SDR in full, using your own salary level and the on-costs in this guide.
3. Ask two or three outsourced providers to quote against your definition of a qualified meeting.
4. Compare cost per qualified meeting held over twelve months, with ramp included.
5. Decide who in your firm would manage an SDR, and how many hours a week that would take.

#Frequently asked questions

#How much does an SDR cost in the UK?

Sales Recruit UK puts a UK SaaS SDR at about £33,000 base and £49,000 on target in June 2026. With employer National Insurance, pension, recruitment, tools and management, UK estimates of the first-year cost run from £65,000 to £97,000.

#How much does an outsourced SDR cost per month in the UK?

Air Marketing's June 2026 guide gives £2,000 to £4,000 a month for a freelancer, £4,000 to £7,000 for a small agency and £6,000 to £12,000 or more for a fully managed programme. ORRJO puts most reputable agencies at £3,000 to £8,000 a month.

#Is outsourcing cheaper than hiring an SDR?

Over a year the costs overlap. Outsourcing usually produces meetings sooner and removes recruitment and turnover risk; hiring builds knowledge inside the firm. Compare the two on cost per qualified meeting held, not on salary against fee.

#How long does a new SDR take to become productive?

Three to six months to full productivity, according to ORRJO and Supernova. Virtual Sales gives an average of 3.2 months. Add the time it takes to recruit before that.

#Who owns the leads and data with an outsourced SDR?

Whoever the contract says. Make sure the prospect list, replies, notes and any sending domains bought for your campaign pass to you when it ends.

#Can an outsourced SDR sell as well as an in-house one?

For opening conversations, often yes, if the agency researches each firm and writes each approach, and if you brief it well. For closing, keep the work in-house: buyers want to meet the people who will do the work.

If you would rather prove outbound before you hire, Pipeline That Fills sets out how we research and write outreach for founder-led firms, with the list and the conversations yours to keep, and what it costs lists our fees.

#Sources