September 15, 2025
Hiring your first employee in Colorado: the payroll and tax setup
Going from zero employees to one is a bigger leap than it looks — it opens a stack of federal and Colorado obligations. Here is what you actually have to set up.
Hiring your first employee is a milestone worth celebrating — and a moment that quietly turns your business into an employer, with all the obligations that come with it. It is a bigger administrative jump than going from one employee to ten. Here is the setup that has to happen so your first hire does not come with a compliance surprise.
Get your registrations in order
- An EIN (federal employer ID) if you do not already have one.
- Registration with the Colorado Department of Revenue for state income-tax withholding.
- A state unemployment (SUTA) account with the Colorado Department of Labor and Employment.
- Setup for FAMLI, Colorado’s paid-leave program, which is funded by payroll premiums.
- Any local registrations — for example, Denver’s OPT if the employee works in the city.
Classify and document the hire
Confirm first that this person is genuinely an employee and not a contractor — getting that wrong is expensive (we cover it in our 1099-vs-W-2 guide). Then collect the paperwork: a W-4 for withholding, an I-9 for work eligibility, and Colorado’s new-hire reporting. None of it is hard; all of it matters if anyone ever looks.
Set up real payroll
Now you need actual payroll — to calculate and withhold federal and state income tax, Social Security, and Medicare, pay the employer share, withhold and remit FAMLI, deposit those taxes on schedule, and file the quarterly returns. This is not a “pay them and sort it out later” situation; the deposits and filings have real deadlines. A proper payroll system (or a firm that runs it for you) is the right move from employee number one.
Don’t forget the protections
Colorado requires workers’ compensation insurance once you have employees — it is not optional. And you will want to understand the wage rules that apply to you, including any local minimum wage (Denver’s is higher than the state’s) and overtime. Getting these right up front is far cheaper than discovering them through a claim or a complaint.
The leap from zero to one employee is mostly invisible until something goes wrong — a missed deposit, no workers’ comp, a misclassified hire. Set the foundation correctly once and every hire after that is just a repeat.
The bottom line
Your first hire means EIN and state registrations, FAMLI and local taxes, proper onboarding paperwork, real payroll, and workers’ comp. It is a lot at once, and it is a one-time setup that pays off for every employee after. If you are about to make that first hire and want it done right from the start, that is exactly the kind of setup we handle for Front Range employers.
This is general information for Colorado employers, not legal or tax advice, and requirements change. Confirm the current rules with the relevant agencies or a professional.