— Glossary

US hiring, in plain English.

The metrics, systems, and compliance terms that actually move the P&L. Bookmark it.

Cost per Hire (CPH)

Source: SHRM

Total internal + external cost to fill a role, divided by number of hires. US average ~$5,475 in 2025.

Time to Fill

Source: SHRM

Calendar days from job requisition open to accepted offer. US average ~44 days across sectors.

Time to Hire

Days from candidate first contact to accepted offer. A tighter operator metric than time-to-fill.

Turnover Rate

Separations in a period divided by average headcount, annualized. Reported monthly by BLS JOLTS.

Quits Rate

Source: BLS JOLTS

Voluntary separations as a % of employment. A leading indicator of labor-market heat.

Vacancy Bleed

Revenue and productivity lost per day an operating seat is empty. Commonly $200–$1,000/day for hourly roles.

Replacement Cost

Source: SHRM / Gallup

Total cost to replace a departing employee. Estimated at 50–200% of annual salary depending on role complexity.

Applicant Flow

Volume of applicants per open req per week. High flow is not the goal — qualified flow is.

Show-Up Rate

% of scheduled interviews that actually occur. Hourly-role show-up rates commonly sit at 40–60% without a follow-up cadence.

Offer Acceptance Rate

% of extended offers accepted. Below 70% is a signal of misaligned wage, benefits, or interview experience.

Quality of Hire

Composite score of new-hire performance, retention, and ramp time — the only KPI that actually matters.

Retention Rate

% of employees remaining after a defined period (90-day, 1-year). Retention economics dominate hiring economics.

90-Day Turnover

% of new hires who leave within 90 days. High 90-day turnover means the funnel is filtering the wrong people.

Employer Brand

The candidate-side perception of what it's like to work at your company. Ranks alongside wage as a decision driver.

Employee Value Proposition (EVP)

The bundled reasons a candidate should pick you over the employer down the street. Wage, schedule, growth, culture.

Sourced Candidate

A candidate who did not apply, but was proactively surfaced via ads, referrals, or outbound.

Passive Candidate

Currently employed and not actively job-hunting. The bulk of the qualified US labor pool.

Referral Hire

A hire sourced from an existing employee's network. Typically the highest-retention hire channel.

Requisition (Req)

A single approved, budgeted open role.

ATS (Applicant Tracking System)

Software that stores applicants and tracks them through hiring stages. Necessary but not sufficient — an ATS doesn't recruit.

Recruiting CRM

A candidate-relationship system that nurtures qualified people over time, including passive candidates. What TalentZilla ships to every client.

Programmatic Job Ads

Automated bidding across job aggregators to place your req in front of relevant candidates. Complementary to social.

BFOQ (Bona Fide Occupational Qualification)

A qualification that is job-related and necessary — legally defensible screening criteria under EEOC.

EEOC

US Equal Employment Opportunity Commission. Enforces federal anti-discrimination law in hiring.

I-9

US federal form to verify employment eligibility. Completed by every new US hire.

W-2 vs 1099

W-2 = employee (withholding, benefits). 1099 = independent contractor (self-managed). Misclassification is a top DOL enforcement area.

PEO (Professional Employer Organization)

Co-employer arrangement handling payroll, benefits, HR compliance. Not a recruiting solution.

Staffing Agency

Third party that supplies workers under their employ, marked up. Pay-per-placement or bill-rate model.

JOLTS

BLS Job Openings and Labor Turnover Survey — monthly US openings, hires, quits, and layoffs data.