General contractors carry the mandate on the most volatile headcount in construction: project-based hiring, long receivable cycles, and a sub-versus-employee line that decides who counts. A 401(k) with hour-based eligibility absorbs the headcount swings, discretionary profit sharing tracks the years that close well, and — increasingly — a real benefits package is a prequalification and bonding asset: owners, GCs above you and sureties read a funded retirement plan as evidence of a stable, professionally run shop. The owner's own exit is the other half of the conversation, and the plan is only part of it.
Why this industry is different
The mandate treats every employer alike. The payroll realities underneath don't cooperate:
- Project-based revenue and headcount swings — carpenters and superintendents onboarded for a job and released at closeout make a static census assumption useless.
- Long receivable cycles — retention held for months makes any fixed monthly commitment feel dangerous, even when the year ends well.
- Subcontractor versus employee classification decides who the mandate and the plan must cover — and the ABC test does not care what the contract says.
- The business is the retirement plan — owner-operators assume a future sale will fund retirement, with no diversified asset and usually no succession or buy-sell funding either.
- Recruiting and prequalification pressure — experienced supers and PMs expect benefits, and prequal questionnaires increasingly ask about them.
What actually works
The design brief is flexibility without leakage: eligibility at one year and 1,000 hours so project-duration hires never enter the census; employee deferrals as the always-on core, which cost the company nothing; and profit sharing kept discretionary so contributions land in the years the jobs actually close. A safe harbor contribution is worth its fixed cost when the owner and key salaried staff want to defer fully — $24,500 each for 2026, plus catch-ups — without testing exposure against a small office census.
Separately from the plan: if the business itself is your retirement, that is a concentration decision, not a plan. A qualified plan is the one asset the jobsite, the surety and a bad year cannot touch — and building one alongside the business is usually the first real diversification an owner-operator ever does. Succession and buy-sell funding belong in the same conversation.
The SECURE 2.0 credits frequently cover most of the first three years' administration for employers under 50 staff — the formula, worked honestly — and if after the arithmetic CalSavers is still the right answer for your shop, we'll say so: the full comparison · run your own numbers.
On classification. The sub-versus-employee line decides every count on this page. California's ABC test, not the contract label, controls — and the retirement mandate simply inherits your true W-2 roster. When in doubt, employment counsel first, plan design second.
By county
This guide is statewide. The county pages go local — where the industry physically clusters, which cities it sits in, and the municipal rules that stack on top of the state mandate.
Where this industry clusters near us
General Building Contractors questions
My headcount is 30 during a project and 8 between them. What number does the state use?
CalSavers works from your average employee count on EDD DE9 filings, so the swings are averaged rather than cherry-picked — and with the mandate now reaching employers of one or more, the threshold question matters less than it used to. The practical question is administration: a private plan with a service requirement means the project-duration hires never enter your census at all.
Do my subcontractors count?
Genuine subcontractors — their own license, their own tools, their own business — do not. Workers you direct daily on your jobs frequently fail California's ABC test no matter what they are called, and misclassified workers count for the mandate, the plan, workers' comp and payroll tax all at once. This is the question to resolve first, with counsel.
Does offering a 401(k) actually help with bonding or prequalification?
Sureties and owners evaluating a GC look at continuity and management quality alongside the financials, and prequalification questionnaires commonly ask about benefits and key-person retention. A funded plan will not change your financial ratios, but it is concrete evidence of a professionally run company and it demonstrably helps keep the supers and PMs those questionnaires ask about. We would frame it as recruiting and credibility, not as a bonding trick.
I plan to sell the company and retire on the proceeds. Why bother with a plan now?
Because the sale is uncertain in timing and price, and a qualified plan is not. Annual contributions build a diversified asset the business cannot reabsorb, may reduce current taxable income, and — if a sale does come — a company with a clean benefits program is easier to diligence. Treat the plan as the floor under the exit, not a substitute for it.
A plan designed around general building contractors — not around the average employer
We design around the census you actually have — turnover, seasonality, pay structure and all. Fifteen minutes, no charge, and a straight answer.