Staffing Terms Glossary: What Employers Actually Need to Know

The five staffing terms that cost employers money when misunderstood are bill rate (what you are invoiced), pay rate (what the worker earns), markup (the percentage applied to pay rate), burden (employer taxes and insurance), and gross margin (calculated on bill rate, not pay rate).

Most staffing glossaries are written for people working in staffing. This one is written for the person buying it, and it is ordered by how much money the term can cost you rather than alphabetically.

If you read only one entry, read the markup and gross margin pair. They are routinely confused, including by people selling you the service.

Term	What it means	Why it matters
Pay rate	What the worker is actually paid per hour	Drives candidate quality and retention
Bill rate	What you are invoiced per hour	The only number comparable between vendors
Markup	Percentage applied to the pay rate to get the bill rate	Not profit; most of it is real cost
Burden	Employer payroll taxes, workers' comp, unemployment insurance, benefits	Sits inside the markup
Gross margin	Agency profit as a percentage of the bill rate	Always lower than the markup figure
Spread	The dollar difference between bill rate and pay rate	The plain-English version of margin
Blended rate	A single rate across mixed roles or seniorities	Convenient, but hides what you pay for what
Rate card	A published list of rates by role	A starting point, not a quote

Bill rate = pay rate x (1 + markup). A worker paid $20 an hour at a 40% markup bills at $28.

Markup and gross margin are not the same number, and the gap is large. A worker paid $10 and billed at $15 carries a 50% markup but a 33.3% gross margin, because margin is calculated against the bill rate. An agency quoting "33% margin" and one quoting "50% markup" may be quoting the identical deal. Always ask which basis they are using.

Never compare markups between vendors. A firm quoting 35% while paying $24 bills $32.40. A firm quoting 50% while paying $20 bills $30.00. The higher markup is the cheaper invoice and pays the worker more. Ask every vendor for pay rate and bill rate together. The full worked examples are in how much do temp agencies charge.

Term	What it means
Contract / temporary staffing	The agency employs the worker and supplies them to you for a period. You pay an hourly bill rate
Contract-to-hire	A contract engagement you intend to convert to permanent, usually with a conversion fee
Direct hire / direct placement / permanent placement	The agency finds someone who goes onto your payroll. One-time fee
Contingency search	The agency is paid only if you hire their candidate. Low risk, shallower search
Retained search	You pay in stages regardless of outcome. The search actually happens
Temp-to-perm	Another name for contract-to-hire
Payrolling	You found the person; the agency employs them for you at a reduced markup
RPO	Recruitment process outsourcing. The agency runs some or all of your hiring function
Embedded recruiting	A recruiter works inside your process as dedicated capacity, usually a fixed monthly cost
MSP / VMS	Managed service provider and vendor management system, used by large enterprises to coordinate many staffing vendors

Payrolling is the one buyers most often miss. If you have already found someone and simply need them employed and paid by someone else, you should not be paying a full recruiting markup. Ask for a payrolling rate explicitly, because agencies rarely volunteer it.

The differences that actually change your cost are set out in staffing agency vs recruiting agency vs headhunter and contract-to-hire vs direct hire.

• Conversion fee (buyout). What you pay to move a contractor onto your payroll. Commonly 11-21% of annual salary, usually declining the longer they have been on assignment. Agree it before the engagement starts.
• Guarantee period. The window in which a departing permanent placement is replaced or refunded. Commonly 30-90 days. Replacement and refund are very different protections described with the same word, so check which you have, and read the exclusions.
• Candidate ownership. How long the agency can claim a fee for someone they introduced. Matters if you hire that person months later through another route.
• Exclusivity. Committing to one agency for a search, usually in exchange for a lower fee or more effort.
• Backfill. Replacing someone who left, as opposed to a newly created role.
• Req (requisition). One approved open role.
• Time to fill. Days from opening a role to an accepted offer.
• Submittal to interview ratio. How many candidates an agency sends per interview granted. A useful quality signal and one most buyers never ask for.
• Co-employment. The shared employer relationship created when a staffing agency supplies workers you direct. It carries real legal implications and is the reason agencies set rules about how you treat contract staff.

Co-employment is worth understanding properly rather than ignoring, because the rules your agency imposes around performance management, benefits and tenure exist to manage a risk that can land on you too.

A short list of phrases that should prompt a follow-up question rather than a nod.

• "Our standard rate." Reasonable as an opener. Unreasonable if the vendor cannot explain what drives it up or down.
• "We can't disclose the pay rate." Then they are asking you to compare a number that cannot be compared. This is the single most common way an unfavourable deal is hidden.
• "Total compensation" in a placement fee clause. A percentage of base is very different from a percentage of base plus bonus plus equity. Thousands of dollars different, and it is always in the contract.
• "We'll work with you" on a guarantee. Not a term. Get the replacement or refund schedule in writing.
• "1099 is cheaper." Classification is a legal question, not a pricing preference, and misclassification exposure lands on you. Ask for the rationale in writing.
• "Industry standard." Sometimes true. Ask what range they mean and for your specific sector, because the spread between administrative and clinical staffing is enormous. See markup rates by industry.

The Chum Effect is a staffing agency in Austin, Texas, so we are explaining terms we also charge under. That is worth saying plainly.

We publish this because almost every expensive staffing mistake we see comes from a buyer not knowing what a number meant, not from paying a few points too much. A buyer who knows the difference between markup and margin, and who asks for the pay rate alongside the bill rate, negotiates better with everyone including us.

We run contract staffing, contract-to-hire and direct placement, and Recruitment Squads for companies hiring continuously enough that per-placement pricing has stopped working. If you are hiring in Central Texas, our Austin staffing services page covers what we do locally.

If you want a second opinion on a quote or a contract you have in front of you, book a free hiring strategy call and bring it. Telling you your current vendor is priced fairly is a perfectly good outcome of that call.

Next: what staffing agencies charge by model and the questions to ask before you sign.