What a UK in-house SDR actually costs, built from HMRC's 2026/27 employer rates and published salary data rather than a rule of thumb.
Hiring in a different market? Compare all four side by side.
A UK SDR at the RepVue median (£41,527 base / £63,320 OTE) carries about £10,000 a year in employer on-costs — roughly 16% on top of OTE. Employer National Insurance is almost all of it: 15% of everything above £5,000, with no upper limit. Auto-enrolment pension adds 3% of the £6,240–£50,270 band.
That is a materially lighter load than the US, where the employer share of health premiums alone runs $7,885 and total on-costs reach 22%. The gap narrows once you count ramp: three months to productivity and 40% annual attrition apply wherever the seat sits.
Everything below the salary line is statutory and sourced. The salary is yours.
Excludes tooling, data, management overhead and recruitment. Those are real and they only push the number up. Converted at £1 = $1.345, the mid-market rate on 2026-08-04. GBP floats — treat USD figures as indicative and re-check on the day.
Sources disagree sharply. RepVue's UK median base is £41,527; Glassdoor's London average is £42,486; Coburg Banks puts the UK median nearer £30,000 on a £24k–£38k range. The spread is mostly London versus the rest of the country. Enter your own number — that is what the field is for.
$3,500–$5,500/mo depending on market; $5,500/mo ($16,500/quarter) for a US-market dedicated SDR. At the same 12–15 meetings a month, that is $233–$458 per meeting. Your in-house number above works out at $783 per meeting once ramp is counted.
Pricing depends on the market your SDR sells into. $5,500/month is the US-market dedicated SDR; rates start at $3,500/month for other regions. The comparisons on this page use the US rate, because everything they are compared against is US cost.
No recruiting, ramp, tooling spend, or attrition risk on the buyer's side. That risk sits with us.
Talk to us about this marketEmployer National Insurance. 15% of earnings above the £5,000 secondary threshold for 2026/27, per HMRC's published rates and thresholds for employers. Unlike the employee side there is no upper earnings limit, so the charge keeps scaling with OTE. The threshold fell and the rate rose, which is why employer NIC now starts biting almost immediately on a junior seat.
Auto-enrolment pension. The employer minimum is 3% of qualifying earnings — the band between £6,240 and £50,270, confirmed for 2026/27 by the DWP review — not 3% of total pay. Modelling it as a flat percentage overstates the cost on high salaries and understates it on low ones, so this calculator uses the band.
Employment Allowance is deliberately not netted off. Eligible employers can reduce their annual employer NIC bill by up to £10,500, but it applies once per business rather than per employee, and single-director companies cannot claim it at all. If you already employ people it is almost certainly spent, so subtracting it from one hire's cost would flatter the in-house number.
Salary. RepVue's UK medians are used because they come from verified submissions and match the methodology behind the US page. They are not uncontested — Glassdoor's London average is close, but Coburg Banks puts the national median nearer £30,000. That spread is mostly London against everywhere else, which is why the field is editable and the disagreement is shown rather than averaged away.
At the starting figures above, employer on-costs come to £10,066 a year — about 15.9% on top of pay. Statutory rates move; this dataset was verified on 5 August 2026 and is re-verified quarterly. The full cross-market write-up is in What an SDR actually costs in 2026. This calculator runs entirely in your browser and stores nothing you type.