Reference · Data standard

Data definitions for the nine metrics

Precise definitions for every data input that feeds the nine National Hiring Metrics. Each entry shows what the input means, where it is sourced, and which metrics it serves.

The nine metrics are calculated from defined data inputs. Consistent definitions are what make benchmarking valid — two organisations measuring the same input differently produce results that cannot be compared. Where your internal terminology differs from a definition below, map your data to these definitions before submission. Do not redefine the metric to match your internal terms. All time calculations use calendar days, not working days.

Metric 01

Vacancy Ratio (%)

HV5 ÷ FD1 × 100
HV5ATSCount
Number of Open Vacancies — Current Month

Total number of active permanent vacancies that remain open and have been authorised to recruit (signed off by the business) on the last day of the previous month. An open vacancy is any active vacancy where the candidate has not yet started.

Also feeds: no other metrics
FD1HRISCount
Permanent Headcount

The most up-to-date number of permanent and FTC individuals on the payroll. Excludes contractors and all non-permanent individuals. Covers only the area of the business being benchmarked, not total company headcount unless that is the agreed scope.

Also feeds: Metric 09 (Financial Impact of Making New Hires)
Metric 02

Time to Offer Accepted (Days)

HD10 − HD9 (calendar days)
Metrics 02 and 03 share the same start point (HD9). The open date is identical in both; only the endpoint differs.
HD9ATSDate
Requisition Open Date

The calendar date the requisition was formally signed off by the business and TA began the hiring process. This is not the date the role was advertised or posted — it is the date the vacancy was formally authorised for recruitment internally. Note: this date may differ from the requisition approval or system creation date depending on your ATS configuration.

Also feeds: Metric 03 (Time to Start), Metric 09 (Financial Impact of Making New Hires)
HD10ATSDate
Offer Acceptance Date

The calendar date the offer was formally accepted by the successful candidate. This is the date of written or verbal acceptance — not the date the offer was made, and not the date a contract was signed or returned.

Also feeds: Metric 09 (Financial Impact of Making New Hires)
Metric 03

Time to Start (Days)

HD11 − HD9 (calendar days)
HD9ATSDate
Requisition Open Date

See Metric 02. The same open date is used as the start point for both time-based metrics.

Also feeds: Metric 02 (Time to Offer Accepted), Metric 09 (Financial Impact of Making New Hires)
HD11ATSDate
Start Date

The calendar date the successful candidate started in role. This is the contracted start date as defined in the offer letter or contract — the first day of employment. All calculations use calendar days, not working days.

Also feeds: no other metrics
Metric 04

Offer Acceptance Rate (%)

(Total accepted offers ÷ Total offers made) × 100 — repeated by salary band Total accepted = HV2 + HV3 · Total declined = count of HD14 = Yes · Salary bands via HD4
HV2ATSCount
External Permanent & FTC Hires

Total number of external permanent and FTC hires made in the twelve months prior to data entry. A permanent employee is someone hired without a pre-determined end date. A FTC employee has a defined end date and is on the monthly payroll. Excludes contractors, temps, and early careers hires. Used as the accepted offers component of the acceptance rate denominator.

Also feeds: Metric 05 (Cost per Starter), Metric 06 (First-Year Attrition Rate), Metric 07 (Sourcing Channel Effectiveness), Metric 08 (Interview/Assessment-to-Offer Ratio), Metric 09 (Financial Impact of Making New Hires)
HV3ATSCount
Internal Moves

Total number of TA-facilitated internal moves made in the twelve months prior to data entry. An internal move is the selection of a candidate from the current workforce to fill a vacancy. Only include moves where TA resource was actively utilised — exclude informal transfers or manager-led moves with no TA involvement.

Also feeds: Metric 05 (Cost per Starter), Metric 06 (First-Year Attrition Rate), Metric 07 (Sourcing Channel Effectiveness), Metric 08 (Interview/Assessment-to-Offer Ratio), Metric 09 (Financial Impact of Making New Hires)
HD14ATSYes / No
Declined Offer

Whether an offer was made to a candidate who declined it during the hiring of this requisition, prior to the successful hire. Only accepted and declined offers relating to the same vacancy are counted. A non-response — where a candidate neither formally accepts nor formally declines — is excluded from both totals. The count of HD14 = Yes across all hires produces the total declined offers figure used in the acceptance rate calculation.

Also feeds: no other metrics
HD4ATSValue
Salary

Annual basic salary awarded to the successful candidate, excluding bonus, sign-on fee, and benefits. Used to assign each hire — and any associated declined offer on the same requisition — to a salary band, enabling the acceptance rate to be reported by band. Provided in the local currency of the employment country.

Also feeds: Metric 05 (Cost per Starter)
Metric 05

Cost per Starter (Currency)

(FD6 + FD7 + FD8 + FD9 + FD10 + (HR3 × HR2) + (HR6 × HR5) + (HR9 × HR8)) ÷ (HV2 + HV3)
FD6FinanceValue
HR and Resourcing-held Resourcing Spend

Total actual spend held by the HR or Resourcing function. Includes agency fees, advertising costs, selection costs, and technology costs. Excludes headcount costs (captured separately in FD10). Only include spend within the agreed benchmarking scope.

Also feeds: no other metrics
FD7FinanceValue
Hiring Manager-held Resourcing Spend

Total actual recruitment spend held by the business or hiring managers outside the TA function, for the recruitment of permanent and FTC individuals. Includes agency fees and advertising costs held by the business rather than the TA team.

Also feeds: no other metrics
FD8FinanceValue
Resourcing Technology Spend

Spend held elsewhere in the business on resourcing systems or technology — for example, ATS or careers site costs held by IT rather than by the TA team.

Also feeds: no other metrics
FD9FinanceValue
Provider Cost (RPO / Hybrid)

Total amount spent on an Exclusive Outsource or Hybrid provider in the last 12 months (fixed and variable costs combined), taken from the month of data entry. Only applicable where an RPO has been actively engaged. Do not include the allocated budget — only actual spend.

Also feeds: no other metrics
FD10FinanceValue
TA Headcount Cost

Total salary and average bonus budget for the experienced hire dedicated TA team — permanent and contract employees who sit within the TA function. Excludes RPO and hybrid onsite provider employees and HR colleagues who deliver TA services as part of a broader remit. Part-time or split-responsibility roles should be represented proportionally.

Also feeds: no other metrics
HR3 × HR2HRValue
HR Adviser TA Cost (Salary × % Time)

HR3 is the total salary spend for HR Advisers who dedicate some or all of their time to TA activity. HR2 is the percentage of their collective time dedicated to TA. The product (HR3 × HR2) gives the TA-attributed cost of this group and is included in the total recruitment function cost.

Also feeds: no other metrics
HR6 × HR5HRValue
HR Business Partner TA Cost (Salary × % Time)

HR6 is the total salary spend for HR Business Partners who dedicate some or all of their time to TA. HR5 is the percentage of their collective time dedicated to TA. The product gives the TA-attributed cost of this group.

Also feeds: no other metrics
HR9 × HR8HRValue
HR Manager TA Cost (Salary × % Time)

HR9 is the total salary spend for HR Managers who dedicate some or all of their time to TA. HR8 is the percentage of their collective time dedicated to TA. The product gives the TA-attributed cost of this group.

Also feeds: no other metrics
HV2 + HV3ATSCount
Total Hires (External + Internal)

See Metric 04. HV2 (external hires) + HV3 (internal moves) = total hires. This is the denominator for Cost per Starter.

Also feeds: Metric 04, Metric 06, Metric 07, Metric 08, Metric 09
Metric 06

First-Year Attrition Rate (%)

AT2 ÷ (HV2 + HV3) × 100
AT2HRCount
Overall First-12-Month Attrition

Total number of hires who left within 12 months of joining the business, including those leaving for reasons of redundancy and performance management. Typically sourced from an HR headcount report containing start and termination dates. To confirm whether the leaver was a new hire, cross-reference against the filled requisition report from the ATS.

Also feeds: no other metrics
HV2 + HV3ATSCount
Total Hires (External + Internal)

See Metric 04. Total hires (HV2 + HV3) is the denominator for the attrition rate calculation.

Also feeds: Metric 04, Metric 05, Metric 07, Metric 08, Metric 09
Metric 07

Sourcing Channel Effectiveness (%)

(Count of HD12 = [channel] ÷ (HV2 + HV3)) × 100 — per channel
HD12ATSCategory
Source of Hire

The sourcing channel through which the successful candidate was identified. Where an exact match cannot be found, use the closest available standard category. Standard channels: Temp-to-Perm, Referral, LinkedIn, Job Board, Direct Source, Agency, Website, Alumni, Events, Unaccountable.

Also feeds: no other metrics
HV2 + HV3ATSCount
Total Hires (External + Internal)

See Metric 04. Total hires is the denominator for each channel's percentage calculation.

Also feeds: Metric 04, Metric 05, Metric 06, Metric 08, Metric 09
Metric 08

Interview/Assessment-to-Offer Ratio

Sum(HD16) ÷ ((HV2 + HV3) + HV4) = Total Candidates Interviewed ÷ Total Offers Made
HD16 is a pending addition to the data standard. The current spec (V19) does not yet include a data point for total candidates interviewed per requisition. This is being added as HD16 in the next spec version. Until then, this metric cannot be fully calculated from submitted data.
HD16ATSCount · Pending
Total Candidates Interviewed at Hiring Manager Stage

The total number of candidates who completed at least one interview or assessment stage conducted by or involving the hiring manager for this requisition, regardless of outcome. Includes candidates who were interviewed but not offered the role. Excludes candidates screened solely by TA who did not progress to hiring manager stage. Each unique candidate counts once per requisition, regardless of how many stages they completed.

Also feeds: no other metrics
HV2 + HV3ATSCount
Total Starters (External + Internal)

See Metric 04. Accepted offers (total starters) form part of the Total Offers Made denominator alongside declined offers (HV4).

Also feeds: Metric 04, Metric 05, Metric 06, Metric 07, Metric 09
HV4ATSCount
Number of Declined Offers

Actual number of verbal and written offers declined by candidates in the last 12 months. Combined with total starters (HV2 + HV3) to produce Total Offers Made, which is the denominator for this metric. A non-response is not counted as a declined offer.

Also feeds: no other metrics
HD13ATSCount · V19
Number of Interview Stages (current V19 proxy)

Total number of interview or assessment stages the successfully hired candidate completed. This is the data point currently collected in V19 and measures average interview stages per hire — a related but different calculation to the National Hiring Metrics metric. It will remain in the spec alongside HD16 once HD16 is added.

Also feeds: no other metrics
Metric 09

Financial Impact of Making New Hires (Currency)

CAL4 × CAL1 × (HV2 + HV3) where CAL4 = FD3 ÷ (FD1 + FD2) ÷ FD4 (revenue per employee per day) and CAL1 = average of (HD10 − HD9) (average Time to Offer Accepted)
FD3FinanceValue
Revenue

The most up-to-date revenue figure as used by the Finance department, covering only the area of the business under review. Revenue is the total amount received for goods sold or services provided — including net sales, asset exchanges, and interest — calculated before expenses are subtracted.

Also feeds: no other metrics
FD1HRISCount
Permanent Headcount

See Metric 01. Used alongside FD2 to calculate total headcount for the revenue-per-employee-per-day figure.

Also feeds: Metric 01 (Vacancy Ratio)
FD2HRISCount
Non-Permanent Headcount

The most up-to-date number of non-permanent individuals (contractors etc.) on the books. Combined with FD1 to form total headcount for the revenue-per-employee calculation. Total headcount = FD1 + FD2.

Also feeds: no other metrics
FD4Finance365
Calendar Days

Number of calendar days in the year (365). Used to convert the annual revenue-per-employee figure to a daily rate: FD3 ÷ (FD1 + FD2) ÷ FD4 = revenue per employee per day. Calendar days are used throughout all National Hiring Metrics calculations to ensure comparability across regions with different public holiday arrangements.

Also feeds: no other metrics
HD9ATSDate
Requisition Open Date

See Metric 02. Used alongside HD10 to calculate Time to Offer Accepted per hire, which is averaged across all hires to produce the time variable in the financial impact calculation.

Also feeds: Metric 02 (Time to Offer Accepted), Metric 03 (Time to Start)
HD10ATSDate
Offer Acceptance Date

See Metric 02. The financial impact calculation uses Time to Offer Accepted (HD10 − HD9) as the vacancy duration — the period during which the role was generating no revenue. This is distinct from Time to Start (HD11 − HD9), which includes the notice period after offer acceptance.

Also feeds: Metric 02 (Time to Offer Accepted)
HV2 + HV3ATSCount
Total Hires (External + Internal)

See Metric 04. Total hires is the volume multiplier in the financial impact calculation.

Also feeds: Metric 04, Metric 05, Metric 06, Metric 07, Metric 08