An employee handbook should get a full professional review once a year and targeted updates whenever the law or your business changes in a way that touches a policy, which in Colorado means updates arrive on the legislature's schedule, not yours.

The honest answer to "how often" is therefore two answers: an annual deep pass, plus event-driven amendments in between, and the second category is where Colorado employers fall behind, because the state has passed significant employment legislation nearly every session since 2019. A handbook that was current in 2022 has missed FAMLI's launch, the POWR Act, amendments to pay transparency, and several minimum wage and threshold adjustments. Here is a cadence that keeps up without becoming a part-time job.

The annual pass (pick a month and defend it)

Once a year, review the whole document against current law and current practice. January works well in Colorado because minimum wage, the COMPS Order, exempt-salary thresholds, and FAMLI premium rates all adjust January 1, so a January pass catches the numbers while they are fresh.

The annual review has two halves: the legal half (do policies match current statutes and dollar figures?) and the drift half (do policies match what you actually do?). The drift half matters more than most owners think, a handbook that promises a review process you quietly stopped following is worse than silence, because it becomes evidence of the standard you set and failed to meet.

Event triggers that cannot wait for January

Update within 30 to 60 days when any of these happen. New legislation touching your policies, in Colorado, watch each session's employment bills; effective dates cluster on January 1 and August. Headcount thresholds: crossing 10 employees changes your FAMLI employer share, and crossing 50 changes nearly everything.

Expansion into a new state: every remote hire in a new jurisdiction imports that state's rules. A lost dispute or near-miss: if a termination or complaint exposed a policy gap, fix the policy while the lesson is expensive and fresh. And operational changes, new schedules, remote work, a new bonus structure, that make an existing policy inaccurate.

What a Colorado update has looked like lately

The recent run, HFWA sick leave (2021), FAMLI premiums (2023) and benefits (2024), the POWR Act's harassment standard and nondisparagement limits (2023), pay transparency amendments (2024), the Job Application Fairness Act's age-information ban, is why the Colorado requirements baseline moves faster than national templates.

If your handbook has not had a professional pass since before 2023, skip the update conversation, it needs the rewrite conversation.

Process: version, distribute, acknowledge

Every update, however small, follows the same three steps: version the document (a footer date is enough), distribute it in a way you can prove, and collect fresh acknowledgments for material changes.

An updated policy nobody was told about is unenforceable in practice, and courts notice when the version an employee signed differs from the version the employer cites. Keep prior versions on file, disputes are litigated under the handbook in force at the time of the events, not the current one.

What this means for your business

The realistic budget: an annual review runs $500 to $1,500 when the handbook is fundamentally sound, targeted mid-year amendments a few hundred dollars each, and a full rebuild $1,500 to $4,000 when it has been years.

The cheapest path is boring consistency, a January pass plus event triggers, because handbooks decay quietly: no alarm sounds when a clause goes void, you find out during a separation. If you cannot remember the last update, that is the answer, and an handbook review will tell you in an hour whether you need a touch-up or a rebuild.