Fractional HR for California businesses
Fractional HR or a full-time HR manager?
For most California businesses between ten and forty employees, fractional HR costs roughly a quarter of a full-time HR manager and starts without a recruiting cycle. A full-time hire becomes the better answer once there is enough recurring HR work to fill a real job, which for most employers arrives somewhere past forty people.
Side by side
What the two options actually cost you
Salary figures are for a Human Resources Manager in California and are base pay, before payroll taxes and benefits. Fractional pricing is published on this site and set by team size.
| Fractional HR | Full-time HR manager | |
|---|---|---|
| Annual cost | $22,740 to $45,540, published by team size | $135,934 average base salary, before payroll taxes and benefits |
| Time to start | No search, no notice period, no ramp | Two to four months to recruit, plus onboarding |
| Seniority | A credentialed senior practitioner from day one | Whatever the budget attracts at that salary band |
| Cover when away | Built in. The retainer does not take PTO | The role stops. Nobody backs up a department of one |
| Employment costs | None. No payroll taxes, benefits, equipment or PTO | On top of salary, every month |
| If it stops working | Three-month minimum, then month to month. No severance | A termination, with everything that involves |
| Capacity | Sized to demand, which is bursty rather than constant | Forty hours a week, whether the work is there or not |
| Best fit | Roughly ten to forty employees, no in-house HR | Enough recurring HR work to fill the role |
Salary source: Salary.com, employer-reported market data. Checked August 2026. Fractional range is $1,895 to $3,795 a month at 10–15 and 26–40 employees.
The middle band
The gap fractional HR exists to fill
The obligations start at the first hire and never stop growing. Below about ten employees the volume is not yet enough for a standing retainer, so Advisory or a custom-quoted plan fits. Past about forty there is enough work to hire in-house, though that person still leans on Maven to carry the full load. Between those points sits the band the fractional retainer is built for: the exposure is already real and the headcount cannot yet carry a salary.
The obligations start at the first hire. Usually the owner is carrying them without the time or the training to be sure they are right.
Advisory
Too much to absorb between other work. Not enough to justify a salary, benefits, and cover.
Fractional HR lives here
Enough work to hire an HR person of your own, who still leans on Maven to carry the full compliance load.
Staffed
Hire full time when
A full-time HR manager is the right call
- Headcount is past forty and still climbing, so the HR work has become continuous rather than episodic
- Hiring volume alone would fill a role: recruiting, interviewing and onboarding as a standing weekly load
- The business runs multiple sites or shifts, where presence on the floor is part of the job
- HR administration is being done badly by someone whose actual job is something else, and the fix is a person rather than advice
- An in-house team already exists and what is missing is a manager to run it
Even then, that hire absorbs every HR function alone. Many keep Maven on for advisory, so the person has senior backup rather than carrying California compliance single-handed.
Go fractional when
Fractional HR is the right call
- There are ten to forty employees and no HR function, so the work is real but not yet forty hours a week
- The need is bursty (a termination, a leave request, an investigation) and nothing in between
- The judgement calls are senior but the volume is not, so a full-time hire at that seniority is unaffordable and one at that budget is underqualified
- Something has already gone wrong and the answer is needed this week, not after a two-month search
- Growth is fast enough that the right answer this year is not the right answer next year
The limits
What fractional HR does not cover
Naming the limits is what makes the rest of this page worth believing. If any of these is the actual need, a retainer is the wrong purchase.
- Payroll processing and benefits administration. You keep your payroll provider, broker and carrier
- Full-cycle recruiting as a standing function, though hiring decisions and offers get advised on
- Daily on-site presence, or anything that needs somebody physically in the building
- Legal representation. Fractional HR is not a law firm, and litigation goes to employment counsel
Common questions
Fractional HR, answered
- Is fractional HR cheaper than hiring a full-time HR manager?
- For a business between ten and forty employees, yes, by a wide margin. Fractional HR from Maven Works HR runs $1,895 to $3,795 a month, or $22,740 to $45,540 a year. The average base salary for a Human Resources Manager in California is $135,934 according to Salary.com, before payroll taxes, benefits, PTO and equipment are added on top. The comparison changes once headcount and HR volume grow enough to keep a full-time person genuinely busy.
- When should a California business hire a full-time HR manager?
- When the HR work has become continuous rather than episodic. In practice that usually means headcount past forty, hiring volume high enough to be a standing weekly load, multiple sites or shifts that need someone present, or an existing in-house team that needs a manager. Below that, the honest answer for most employers is that there is not yet a full-time job to fill.
- What does a fractional HR consultant actually do?
- A fractional HR consultant is a senior HR practitioner working with several businesses at once, on a monthly retainer rather than as an employee. The same arrangement gets called a part-time HR manager or an outsourced human resources consultant, and the difference is scope rather than name: this is senior judgement on call, not administration. At Maven Works HR that covers employee relations, manager training, leave management, risk assessment, employee handbook and policy work, and onboarding. These are the judgement calls a business owner would otherwise make alone or escalate to an employment lawyer.
- Is fractional HR the same as outsourced HR or a PEO?
- No. A PEO becomes a co-employer and takes payroll, benefits and workers’ compensation onto its own platform. Outsourced HR usually means administrative processing handled off-site. Fractional HR is advisory: you keep your payroll provider, your broker and your carrier, and nothing changes about how you employ people. What you gain is the person you call before making a decision, not the system that processes it afterwards.
- How many employees do you need before you need HR support?
- Maven Works HR works with California employers of any size. The ongoing fractional retainer is built for teams of roughly ten to forty, because that is where the questions stop being answerable by intuition and the volume justifies a standing arrangement. Below that, Advisory is usually the right size, and it is available from your first employee. The obligations themselves start early, so what changes with headcount is not whether HR matters but how much ongoing help is worth paying for.
- Can a fractional HR consultant work with a small business?
- Yes. Small businesses are the entire buyer for this service. A company of five to thirty has the same employment law exposure as a much larger one and none of the internal infrastructure, which is the gap fractional HR exists to fill. Maven Works HR works with California employers statewide and takes on a deliberately small number of retainer clients.
Where this fits
How Maven Works HR fits your size
Maven Works HR is a California-only practice run by Lindsey Duenat, PHR. The fractional retainer is built for teams of roughly ten to forty, but the practice serves the full range: Advisory from your first employee below that, and advisory support for the in-house hire above it. Pricing is published and set by team size, so working out whether this is affordable does not require a sales call.
It is advisory rather than administrative. You keep your payroll provider, your benefits broker and your workers’ compensation carrier, and nothing about how you employ people changes. What you get is a senior HR consultant on call for the decisions that carry risk.
Not sure which side of the line you are on?
Twenty minutes with your headcount and what has been landing on your desk, and you will get a straight answer, including that you do not need this yet, if that is the answer.
Lindsey Duenat, PHR
Founder, Maven Works HR
Or reach Lindsey directly
Every enquiry gets a reply within one business day, from Lindsey rather than an autoresponder.