The UK SDR Hiring Problem: Cost, Ramp, and Turnover
Hiring a UK-based SDR is a three-year economic commitment with high friction.
Salary and on-costs
UK SDR base salary: £28,000–£35,000. Commission structure: typically £500–£2,000 per qualified meeting booked (varies by industry and deal size). Total first-year cost: £35,000–£42,000 (salary + realistic commission + benefits). Many UK companies also add: training budget (£2,000–£3,000), laptop/equipment (£1,500), and desk/infrastructure (£200–£300 monthly).
Ramp time and productivity plateau
A new UK SDR is not productive until month 6–9. Here's the typical curve: Month 1–2: Onboarding, CRM training, product knowledge. Meetings booked/month: 0–3. Month 3–4: First outbound sequences, LinkedIn connections. Meetings booked: 3–8. Month 5–6: Productive ramp, consistent outreach cadence. Meetings booked: 15–20. Month 7–12: Full productivity plateau. Meetings booked: 25–35 per month.
This means: in year one, the average UK SDR delivers ~150 meetings. Cost per meeting: £280 (£42k ÷ 150). By year two, that drops to £120–£150 per meeting if retention holds.
Turnover and replacement cost
UK SDR turnover: 25–30% annually (CIPD data). That means 1 in 3–4 SDRs leave each year. Replacement cost: 2–3 months to hire, 1–2 weeks handover, 6 months ramp = 9–10 months lost productivity. By the time you stabilise your team, you're cycling through new hires constantly.
Comparison
| Role | Responsibility | Typical Cost (Kenya) |
|---|---|---|
| Metric | Year 1 SDR | Year 2 (Replacement) |
| Salary + on-costs | £37,500 | £37,500 |
| Ramp productivity loss | £20,000 (months 1–6) | £15,000 (months 1–4) |
| Commission (meetings booked) | £4,800 (150 meetings) | £7,200 (240 meetings) |
| Total cost | £62,300 | £59,700 |
| Meetings delivered | 150 | 240 |
| Cost per meeting | £415 | £248 |
What an Outsourced SDR Actually Does
An outsourced SDR is not a lower-tier alternative to a UK hire. They own the full top-of-funnel pipeline function. This is not data entry or list-building; it's strategic prospecting and relationship development.
Core responsibilities
Target identification: Build a prospect list (LinkedIn Sales Navigator, ZoomInfo, Apollo) based on your ICP (ideal customer profile). Identify decision-makers, validate email addresses, and score fit.
LinkedIn outreach: Send personalised connection requests and follow-up messages. A/B test messaging copy. Monitor accept rates and response rates daily.
Email sequencing: Build multi-touch email campaigns (typically 5–7 emails over 3–4 weeks). Track opens, clicks, replies. Adjust messaging based on engagement.
Phone and calendar management: Make outbound phone calls to qualified prospects (if appropriate for your industry). Propose meetings, coordinate diaries, and handle timezone logistics.
Meeting booking: Qualify inbound leads, confirm details, send calendar invites, and prep the AE (Account Executive) with prospect research.
Pipeline hygiene: Update CRM daily with interaction logs, objections noted, next steps, and follow-up dates. Maintain data integrity for forecasting.
Metrics and reporting: Weekly reporting on meetings booked, response rates, email open rates, and pipeline value. Identify trends and optimisation opportunities.
The Economics: UK SDR vs Outsourced Team
Comparison
| Line Item | UK (London) | Treba (Nairobi) | Saving |
|---|---|---|---|
| Line Item | UK SDR (Year 1) | Outsourced SDR (Year 1) | Saving |
| Base salary | £28,000 | £9,600 | £18,400 |
| Benefits (10% UK, 5% overseas) | £2,800 | £480 | £2,320 |
| Commission (avg 150 meetings @ £1,000) | £4,800 | £2,400 (shared KPI) | £2,400 |
| Training/ramp loss | £8,000 | £2,000 | £6,000 |
| Equipment and workspace | £2,000 | £500 | £1,500 |
| TOTAL | £45,600 | £14,980 | £30,620 |
Year 1 saving: 67% per SDR. A 3-person SDR team costs £136,800 in the UK (salary + ramp + commission + equipment), or £44,940 outsourced. Saving: £91,860 per annum.
Multi-year ROI model
- Year 1 (outsourced): 4 outsourced SDRs @ £15k each = £60k. Meetings delivered: 300 (75 meetings per SDR, ramp-dependent). Cost per meeting: £200.
- Year 2 (outsourced): Same cost (£60k). Meetings delivered: 600–700 (150–175 per SDR, full productivity). Cost per meeting: £85–£100.
- Year 3 (outsourced): Same cost (£60k). Meetings delivered: 800–900 (200–225 per SDR, optimisation). Cost per meeting: £65–£75.
- Compare to UK: 4 UK SDRs @ £35k + commission = ~£155k in year 1, £145k in year 2 (with turnover costs). Meetings: 200–250 in year 1. Cost per meeting: £620–£775.
Pipeline Metrics: What to Expect
Key metrics for outsourced SDRs
Measure an outsourced SDR team on these KPIs:
Meetings booked per SDR per month: 25–35 in month 3–4, 40–60 by month 6+. This varies by industry (B2B SaaS differs from B2B services).
Response rate on outbound: 15–25% on email, 5–10% on cold calls, 20–30% on LinkedIn messages. A/B testing messaging improves this over time.
Meeting close rate (prospect agrees to meeting): 10–20% of qualified conversations = meeting booked. Depends on your ICP definition and deal complexity.
Lead quality: Measured by AE feedback and close rate. Poor quality = low-fit prospects. A good SDR team achieves 60–75% of meetings resulting in a sales-qualified lead (SQL) conversion.
Email open rate: 30–50% on subject line A/B testing. Click rate: 3–8%. These indicate audience fit and messaging quality.
Pipeline value: Meetings booked × average deal value = pipeline created. For £100k deal size, 40 meetings/month = £4M pipeline/month.
Benchmark data from Treba clients
Comparison
| Role | Responsibility | Typical Cost (Kenya) |
|---|---|---|
| Metric | B2B SaaS | B2B Services |
| Avg meetings/SDR/month (month 6+) | 45 | 35 |
| Email response rate | 22% | 18% |
| LinkedIn response rate | 28% | 24% |
| Meeting close rate (prospects → SQL) | 18% | 12% |
| Avg pipeline value/meeting (£) | £80,000 | £45,000 |
CRM Integration, Tools, and Deployment
Technology stack
Outsourced SDRs operate within your existing CRM and tech stack. Standard integrations: (1) HubSpot, Salesforce, or Pipedrive: SDRs log all outbound activity, meeting outcomes, and follow-up actions in real-time; (2) LinkedIn Sales Navigator: Connected to your CRM via ZoomInfo or Lemlist to sync prospect data; (3) Email tracking: Gmelius (Gmail), HubSpot email, or Outreach for open/click tracking; (4) Calendaring: Calendly or native CRM calendar for meeting booking; (5) Dialler: Aircall or Twilio for phone outreach (optional); (6) Data enrichment: Apollo.io or ZoomInfo to hydrate prospect lists with email addresses, phone numbers, and company data.
Your SDRs log in via VPN and web browser. They access your CRM directly (not via proxy). Data remains on your systems.
Ramp and onboarding timeline
- Week 1: SDR recruitment, background checks, NDA/contract signature, tech stack access provisioning.
- Week 2: Product training (your offering, value proposition, typical customer problems), ICP deep-dive (who you sell to, what problems you solve, decision-making criteria).
- Week 3: Outbound playbook training (email templates, call scripts, LinkedIn messaging, objection handling). First prospect list loaded into CRM.
- Week 4: Pilot outreach (100–200 touchpoints) under supervision. Daily feedback on messaging, list quality, and activity logging.
- Week 5: Ramp to 50% target activity. 10–15 meetings booked (depending on ICP complexity). Quality review of all activities.
- Week 6: Independence. SDRs own target metrics: 25–35 meetings/month. Daily activity logging, weekly reporting.
When Outsourced SDRs Work—and When They Don't
Outsourced SDRs are the right choice when
- You have a defined ICP and repeatable sales process. If you don't know who your ideal customer is, no SDR (in-house or offshore) will succeed.
- Your deal size is £20k–£1M+. At £5k–£10k deal sizes, the cost of SDR acquisition is often too high relative to deal economics. At £1M+, outsourced SDRs are highly cost-effective.
- You're scaling sales and need to increase pipeline volume quickly. Outsourcing eliminates the 6–9 month ramp of a UK hire.
- You have a sales manager or AE who can QA SDR output daily. Outsourced teams need more management oversight than in-house staff.
- You can commit to a minimum 12-month engagement. Outsourced teams have setup costs (onboarding, training), so short-term contracts don't work.
Outsourced SDRs are NOT the right choice when
- You have no defined ICP or repeatable process. Outsourcing amplifies chaos—if your sales team is chaotic, an offshore team will struggle.
- Your sales manager is hands-off. Outsourced teams need weekly 1:1s, daily activity review, and rapid feedback loops.
- You operate in a highly regulated or niche industry with steep domain learning (e.g., highly technical B2B, deep compliance requirements). The 4-week ramp may be too short.
- You have a deal size under £10k. The cost-to-acquisition ratio becomes unfavourable.
- You want 'set and forget' outsourcing. Outsourced SDRs require active management. If you're looking to delegate and ignore, this won't work.
Key takeaways
• UK SDR hiring costs £45,600+ in year one (salary + ramp + commission), with 25–30% annual turnover and 6–9 month ramp time. • Outsourced SDRs cost £15,000 per FTE in year one, ramp in 4 weeks, and eliminate replacement costs through lower turnover. • Economics favour outsourcing by 65–70% in year one and 55–65% by year three (amortised across replacement cycles). • Pipeline metrics: expect 25–35 meetings/month in ramp (month 4–5), 40–60/month at full productivity (month 6+).
Email response rates: 18–25%, LinkedIn response rates: 24–30%. • Outsourced SDRs work best for £20k–£1M+ deal sizes with a defined ICP, active sales manager oversight, and 12+ month commitment.
They don't work for 'set and forget' scenarios or under £10k deal sizes.
Written by
Treba Research
Treba editorial team — expert analysis on outsourcing, compliance, and building distributed UK–Kenya teams.
