COColorado
Colorado Lien Deadlines for Material Suppliers
Colorado requires a "Notice of Intent to Lien" to be served at least 10 full days before filing the lien.
Public date calculations cover Florida and Kansas. Colorado dates require qualified review.
Risk context
Colorado is High Risk for Suppliers
You must serve a "Notice of Intent to Lien" at least 10 full days before filing the lien. Filing without this notice invalidates the lien.
Deadline schedule
Colorado Mechanics Lien Deadlines (Updated 2026)
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| Deadline Type | Timing | Details |
|---|---|---|
| Preliminary/Notice | "Notice of Intent to Lien" — 10 days before filing lien | Serve at least 10 full days before filing the lien. |
| Lien Filing | 4 months after last providing materials | Must file lien by 4 months after last furnishing. |
| Special | See details | Shortened to 2 months if bona fide purchaser; "Notice to Owner to withhold funds"; retainage note (15% payable 35 days after final completion). |
| Enforcement | 6 months after completion or last furnishing | Suit to enforce must be filed within 6 months. |
| Statutes | C.R.S. §38-22-101; §38-22-102; §38-22-103; §38-22-105; §38-22-107; §38-22-108; §38-22-109; §38-22-110; §38-22-113 |
Supplier pitfalls
Common Supplier Mistakes in Colorado
Missing Preliminary Notice
Failing to send the required preliminary notice is the most common reason suppliers lose their lien rights in Colorado.
Late Lien Filing
The lien must be filed by the specific deadline. Even one day late invalidates the lien.
Missing Enforcement Deadline
Enforcement must occur within the statutory period after filing.
Deadline calculator
Not Sure Which Deadline Applies?
Use this Colorado guide and collect your project facts for qualified review.
Review Colorado project factsThe public calculator provides dates only for reviewed Florida and Kansas scenarios; it does not calculate a Colorado date.
Common questions
Frequently Asked Questions
What notices are required?
A "Notice of Intent to Lien" must be served at least 10 full days before filing the lien.
When must the lien be filed?
4 months after last providing materials (2 months if bona fide purchaser involved).
What is the enforcement period?
6 months after completion or last furnishing.
What statutes apply?
C.R.S. §38-22-101; §38-22-102; §38-22-103; §38-22-105; §38-22-107; §38-22-108; §38-22-109; §38-22-110; §38-22-113
Important note