Statute of Limitations Medical Debt Colorado

Overview

In Colorado, the statute of limitations (SOL) for most medical debt collections is commonly 6 years under C.R.S. § 13-80-103(1)(a). In practical terms, this means a creditor generally must file a lawsuit within 6 years of the relevant “start date”—and that start date can vary depending on how the debt arose and whether there was qualifying activity (like certain payments or acknowledgments).

Medical debt often shows up in court as a claim brought on an account/contract-type theory (for example, a hospital or billing entity suing to recover charges). In those common scenarios, Colorado courts typically apply the 6-year period tied to contract-type obligations.

Because “medical debt” can refer to different things—unpaid hospital balances, balances after insurance adjustments, accounts handled by a collections agency, or debts assigned to another party—the exact claim type and trigger date matter. That’s where DocketMath can help: its statute-of-limitations tool lets you test the timing based on the dates you have on hand.

Limitation period

Colorado’s baseline rule for many contract-like collection claims is 6 years.

Common medical debt timing pattern (how SOL is usually measured)

For many lawsuits connected to unpaid medical charges, the SOL period often begins on the date of breach—which in debt-collection settings is frequently treated as the date the payment became due under the billing terms or the date the account effectively entered default.

In real-world terms, the “start date” is often one of these:

• the date the medical charges became due under the provider’s billing terms
• the date the account went into default (depending on how the creditor pleads the claim)
• the date of the last transaction/payment that is treated as legally relevant

How the 6-year SOL can play out in real life

If the legally relevant start date is March 1, 2020, then a lawsuit based on that start date generally must be filed by about March 1, 2026 (using whole-day or anniversary-style counting).

Here’s a simple illustration:

Important nuance: SOL is not “credit reporting”

Even if an amount may be time-barred as a lawsuit, that does not automatically mean:

• it won’t appear on your credit report, or
• a collector won’t try to contact you, or
• the creditor won’t pursue collection through non-lawsuit channels

SOL is specifically about whether a lawsuit can be filed within the statutory time window. DocketMath helps you estimate that timing, but it can’t guarantee how a particular case will be argued in court.

Key exceptions

Colorado law includes timing rules that can change the SOL analysis, especially around when the clock starts and whether it can be paused or restarted.

1) When “start dates” shift

The most common reason outcomes differ is that parties disagree about what date should trigger the limitations period. Possible “start” candidates can include:

• the date the debt first went into default
• the date of the last payment
• the date of the last account activity/transaction tied to the claim
• the date of another legally relevant act the creditor argues starts the clock

Because creditors may attempt to use a later trigger date to bring the claim within the limitations window, you’ll get more useful results from DocketMath when you test more than one plausible date.

2) Partial payment or acknowledgment may extend timing

In some debt contexts, certain actions by the debtor—such as a partial payment or a clear acknowledgment that could be treated as resetting or extending the timing—may affect how limitation timing is calculated. The Colorado treatment can depend heavily on the facts and how the claim is pleaded.

Practical approach: Run DocketMath using competing start dates (for example, “date of default” vs. “last payment date”) and compare the estimated expiration results.

3) Different claim types can have different periods

Not every lawsuit is governed by the exact same limitation category. While C.R.S. § 13-80-103(1)(a) is frequently associated with contract-like actions, a creditor’s theory of the case can sometimes affect which SOL category applies.

So even in “medical debt” cases, the legal framing matters. If the creditor pleads the claim differently, the limitations analysis may not be identical to a straightforward contract scenario.

Statute citation

Colorado’s key SOL provision for many contract-type collection lawsuits is:

• C.R.S. § 13-80-103(1)(a) — 6 years for actions on written contracts and certain contract-related claims within the statute’s scope

This provision is one of the most commonly applied sources for the 6-year limitation period used in many debt-collection cases that sound in contract or similar account-based obligations.

If you’re reviewing a court filing, the “claims for relief” or counts section can help identify what type of claim the creditor is pursuing, so you can align that with the logic used in the DocketMath tool and the C.R.S. § 13-80-103(1)(a) rule.

Use the calculator

DocketMath’s statute-of-limitations tool estimates the latest date a lawsuit could be filed based on the SOL period and trigger date(s) relevant to your scenario.

What to enter (and why it changes the output)

When you use /tools/statute-of-limitations, you generally provide:

• the clock-start date (the key “trigger” date)
• the jurisdiction (Colorado)
• the relevant claim timing logic the tool applies

For medical debt cases, since the start date is often disputed, consider running the tool with more than one date you can support, such as:

• Last payment date (if you made any payments)
• Date of default (if you know it)
• Date the bill became due (from billing terms)
• Date of last billing/statement (if that’s the date being argued)

What the output means

The calculator’s result is an estimated SOL expiration date (a “latest plausible filing date” under the tested assumptions):

• If a lawsuit was filed before the expiration date, the claim is likely not time-barred under that specific SOL theory.
• If a lawsuit was filed after the expiration date, the claim may be time-barred for SOL purposes—depending on exceptions and the actual trigger date used.

Quick test example

Suppose your known Colorado medical bill default date is:

• June 12, 2019

If the applicable period is 6 years, the estimated SOL expiration is around:

• June 12, 2025

Then, if a lawsuit was filed on July 20, 2025, the timing would appear outside the window. If the complaint alleges a different trigger date (such as a later acknowledgment or payment), re-run the calculator with that alternative start date to see how the expiration date shifts.

For direct calculations, start here: /tools/statute-of-limitations.

Sources and references

Start with the primary authority for Colorado and confirm the effective date before relying on any output. If the rule has been amended, update the inputs and rerun the calculation.

• Colo. Rev. Stat. § 13-80-101

Related reading

• Choosing the right statute of limitations tool for Vermont — How to choose the right calculator
• Statute of limitations in Singapore: how to estimate the deadline — Full how-to guide with jurisdiction-specific rules
• Choosing the right statute of limitations tool for Connecticut — How to choose the right calculator