United Kingdom · Ratified March 2026

A common language for UK hiring.

Nine independently ratified metrics that give every UK employer, recruiter, and ATS provider a shared basis for measuring recruitment performance. Soft launched at the House of Lords, 19 March 2026.

“Strategy without measurement is aspiration. If we are serious about improving hiring outcomes across the UK, we must underpin the National Hiring Strategy with standardised recruitment metrics that allow organisations to benchmark performance consistently and credibly.”

Adrian Thomas — House of Lords, 19 March 2026
9 Standard
Metrics

Built, validated, legislated.

The National Hiring Metrics were built in three stages. The data architecture, collection framework, and calculation methodology were developed by Talent Benchmarking, who gifted the metrics to the industry as a free and open standard. The definitions were validated and refined through the RL100 community of UK TA leaders, whose practitioner input shaped the final naming conventions and ensured the standard reflected real-world hiring practice. The metrics were then embedded within the National Hiring Strategy through the Better Hiring Institute, establishing the legislative pathway for national adoption.

The nine metrics

Each metric has a consensus definition and a formula agreed by the RL100 community. Use both together: the definition ensures you are measuring the right thing; the formula ensures you are calculating it consistently.

Metric 01

Vacancy Ratio (%)


Definition

Open positions as a percentage of total organisational headcount.

Formula
(Number of open vacancies ÷ Total permanent & FTC headcount, excluding contractors) × 100, as at the last day of the previous month. An open vacancy is any active vacancy where the candidate has not yet started.
Metric 02

Time to Offer Accepted (Days)


Definition

Number of calendar days between the date a vacancy is formally opened for recruitment by TA and the date a candidate formally accepts a valid offer of employment for that vacancy, regardless of process type or tools used.

Formula
Offer Acceptance Date minus Date vacancy formally opens for recruitment
Metric 03

Time to Start (Days)


Definition

Number of calendar days between the date a vacancy is formally opened for recruitment by TA and the date a candidate commences their first day of employment.

Formula
Actual Candidate Start Date minus Date vacancy formally opens for recruitment
Metric 04

Offer Acceptance Rate (%)


Definition

Percentage of job offers made that are accepted by candidates. Reported in total and by salary level.

Formula
(Accepted Offers ÷ Total Offers Made) × 100. Repeat by salary level. Only calculate accepted/declined offers relating to the same vacancy; a non-response is not included in either the total offers made or accepted offers totals.
Metric 05

Cost per Starter (Currency)


Definition

Total recruitment function costs divided by total hires in a period (usually a year). Includes all resourcing spend, technology costs, provider costs, TA headcount costs, and the TA-attributed proportion of wider HR team costs.

Formula
Total recruitment function costs ÷ Total hires (external permanent + internal moves). Note: total costs should encompass all recruitment-related spend — TA function spend, technology, provider fees, headcount, and any HR time attributed to TA.
Metric 06

First-Year Attrition Rate (%)


Definition

Percentage of new hires leaving voluntarily or involuntarily within 12 months of start date.

Formula
(New Hires Leaving ≤ 12 months ÷ Total New Hires) × 100
Metric 07

Sourcing Channel Effectiveness (%)


Definition

Percentage of offers accepted and starters generated from each defined sourcing channel.

Formula
(Offers Accepted from Source ÷ Total Hires) × 100 (Starters from Source ÷ Total Hires) × 100
Metric 08

Interview/Assessment-to-Offer Ratio


Definition

Total number of candidates interviewed at hiring manager stage divided by total offers made over a 12-month period. Screening calls handled solely by TA are excluded from the candidate count.

Formula
Total Candidates Interviewed (at hiring manager stage) ÷ Total Offers Made
Metric 09

Financial Impact of Making New Hires (Currency)


Definition

Total financial benefit of undertaking recruitment, expressed as revenue attributable to filled roles. Calculated as the daily revenue value of each hire multiplied by how long the role was vacant.

Formula
Revenue per employee per day × Average Time to Offer Accepted × Total hires. Revenue per employee per day = Annual revenue ÷ Employee headcount (permanent + FTC) ÷ 365. Note: employee headcount excludes contractors, aligning with the Companies Act 2006 definition of persons employed under contracts of service.

How to use the metrics

There are three ways to adopt the National Hiring Metrics, depending on where you are in your measurement maturity.

Use the standardised definitions

Adopt the nine metric definitions as-is in your internal reporting, job briefs, and ATS configuration. Consistent definitions are the foundation — everything else follows from getting these right.

↓ Download data collection guide

Benchmark your performance

Once you are measuring consistently, compare your results against independently verified sector and size-band benchmarks. Contact Talent Benchmarking to register your interest.

Use a compliant ATS

A growing number of ATS providers will offer National Hiring Metrics-native reporting, meaning the metrics are calculated and surfaced automatically from your existing hiring data. Further details will be published at hard launch, 2 July 2026.

Free calculator

Calculate your nine metrics in under five minutes

Enter your hiring data and see your results instantly — all nine National Hiring Metrics, calculated against the ratified definitions. No spreadsheet, no manual formula, no guesswork.

Free to use. No account required. Enter your data and see your results immediately — then share them with your leadership team, your board, or your hiring managers as a baseline for improvement.

Calculate your metrics now →
What you will need
01 ATS hired report — starters, dates, sourcing channels, and declined offers for the last 12 months
02 Employee headcount figure from your HRIS
03 Annual revenue for the benchmarked area from Finance
04 Total recruitment spend — TA, agency, technology, and provider costs combined
05 First-year leavers count from your HR termination report
↓ Download the data collection guide