Terminating an employee is the highest-risk routine action a small business takes. Done properly, it is a difficult conversation with a clean file behind it. Done casually, it is how a $0 problem becomes a five-figure one, because most employment lawsuits are not about whether the firing was allowed, they are about how it was done.

This article covers how to fire an employee properly: the groundwork, the Colorado-specific rules that surprise out-of-state owners, the conversation itself, and the week after.

At-will employment, and what it does not cover

Colorado is an at-will state: absent a contract, you can end employment for any lawful reason or no stated reason. The word doing the work in that sentence is lawful. You cannot terminate because of a protected characteristic, and the Colorado Anti-Discrimination Act applies to employers of every size, not just the 15-plus threshold federal law uses.

You cannot terminate in retaliation for a complaint, a FAMLI leave request, a workers' comp claim, or wage discussions, which the Equal Pay for Equal Work Act protects. At-will means you do not need a reason. It does not mean a jury will not go looking for one, which is why the file matters more than the doctrine.

The groundwork that makes a termination defensible

A termination should be the last entry in a paper trail, not the first. For performance cases, that means the issues were put in writing as they happened, expectations were set, and the employee had a real chance to correct course, whether or not you formalized it as a performance plan. For conduct cases, it means the incident was documented and, where facts were disputed, investigated before the decision.

The test an outside lawyer will apply later is simple: would a stranger reading this file reach the same decision you did? If the file is empty, the answer is whatever the ex-employee's attorney says it is.

Timing gets scrutinized too. A termination that lands two weeks after a harassment complaint or a leave request will be read as retaliation regardless of your actual reasons, and you will be litigating the calendar. When a termination is justified but the timing looks bad, slow down and document harder, or get an outside opinion before acting.

Colorado's same-day paycheck rule

This is the one that catches employers who moved here from somewhere else. Under Colorado wage law, when you terminate an employee, final wages are due immediately at the time of termination, or within six hours of the next business day's start if the payroll unit is offsite (twenty-four hours where payroll is processed off-site). That includes earned, vested vacation time, which Colorado treats as wages that cannot be forfeited.

Practically: order the final check before the meeting, and know your PTO balance math beforehand. Missing this creates penalties that stack.

The termination meeting itself

Short, private, and witnessed. Two people from the company in the room, the decision delivered in the first minute, and no relitigating the history, the meeting is a notification, not a negotiation. Have the final paycheck, the benefits information, and the logistics (equipment return, access, personal items) ready.

If you offer severance in exchange for a release of claims, that is a written agreement with legal requirements, including specific ones for workers over 40, and it should be drafted, not improvised. End the day by cutting system access and notifying payroll and benefits, COBRA notice obligations start running at termination for companies of 20 or more.

Common mistakes owners make

Firing angry, same day as the triggering incident, with no file, is the classic. Softening the record is its quieter cousin: years of "meets expectations" reviews followed by a termination for performance reads as pretext, because the paper says the opposite of the decision. Missing the same-day paycheck rule is the most common pure-Colorado error.

Discussing the termination with the remaining team in any detail creates defamation exposure, keep the announcement to logistics. And promising a neutral reference, then giving an unneutral one, converts goodwill into a claim.

What this means for your business

The uncomfortable truth is that a proper termination is built weeks or months before the meeting, in the documentation habit. If you are contemplating one now with an empty file, the right move is usually four to six weeks of honest, written performance management first, both because people occasionally turn around, and because if they do not, you will finish with a decision that defends itself.

When the facts are disputed, run the process in how a workplace investigation actually works before deciding. And when the case is tangled, a senior person, a bad-timing problem, a file that is thinner than the frustration, that is when an outside employee relations consultant earns their fee, because the cheapest termination is the one that never becomes a case.