Step-by-step guide to forming a S-Corp in Colorado. Filing fee ($50), requirements, timeline, taxes, and what international founders need to know.
Tech Hub + Low Flat Tax
Step-by-step process for international founders.
Form a C-Corp or LLC first
File Form 2553 (S-Corp election) with IRS
Meet all eligibility requirements
Set up payroll for owner salary
File annual Form 1120-S
File annual report / pay annual fees in Colorado
Annual fee: $10. Due: Annually
| Cost Item | Amount | Notes |
|---|---|---|
| State filing fee | $50 | One-time, paid to Colorado SOS |
| Registered agent (Year 1) | $50–$150/yr | Required in Colorado |
| Annual report / renewal | $10/yr | Due: Annually |
| EIN (Federal Tax ID) | Free | Apply via IRS Form SS-4 |
| Operating Agreement / Bylaws | $0–$500 | DIY or attorney-drafted |
| Business bank account | $0 | Mercury or Relay recommended |
| Total Year 1 (estimated) | $160–$710 | Varies with registered agent choice |
Pass-through (but owners pay salary + save on SE tax)
IRS Form: Form 1120-S + Schedule K-1
Yes (4.4% flat)
Franchise tax: None
Yes. Colorado allows non-US residents to form a S-Corp entirely remotely. You need a registered agent with a Colorado address, and you'll apply for an EIN from the IRS using Form SS-4.
No. You can form a Colorado S-Corp from anywhere in the world. However, you must maintain a registered agent with a physical Colorado address.
Standard processing: 1–5 days. Expedited processing is available for an additional fee through the Colorado Secretary of State.
Mercury and Relay are the top choices for international founders. Both open accounts fully online, require no US visit, and work well with Colorado entities.