Statute of Limitations for Debt on a Promissory Note in Colorado

Overview

A promissory note is a written promise to pay a sum of money under defined terms (principal, interest, maturity date, and payment schedule). When a borrower stops paying, a lender may pursue a lawsuit to collect the debt—but only within the statute of limitations (often shortened to “SOL”). In Colorado (US-CO), the SOL depends primarily on what kind of claim the lender brings (for example, whether the action is treated as a contract claim) and when the claim “accrues.”

DocketMath’s statute-of-limitations calculator is designed to help you estimate the timeline by running your dates through the relevant Colorado limitations period. You’ll get the latest likely filing date based on the inputs you provide, plus a quick view of how changes (like a different default/maturity date) affect the result.

Limitation period

The typical rule for a promissory note in Colorado

In Colorado, most lawsuits to collect a debt based on a promissory note are treated as actions on a written contract. Colorado’s statute for written contract claims sets a 6-year limitations period.

Practical takeaway: If the lender waits longer than 6 years after the claim accrues, the lawsuit may be barred.

What “accrues” means for a note

The SOL clock generally starts when the lender’s claim accrues—often tied to when the borrower defaults or when the debt becomes due and payable.

For promissory notes, “due” commonly depends on the note’s structure:

• Single maturity date (lump sum due):
  The clock often starts on the maturity date (or earlier if an acceleration clause is triggered by default).
• Installment payments (scheduled payments over time):
  Each missed installment can create a separate accrual timing question. In practice, many lenders treat the first default as relevant, while others rely on acceleration or the note’s default provisions.
• Demand notes (pay on request):
  Accrual timing can hinge on when a demand is properly made and refused.

How the calculator changes the output

DocketMath’s calculator focuses on two date inputs that usually drive the result:

• Accrual date / default date (the date the claim likely became enforceable)
• Filing date you’re considering (optional, depending on how you use the tool)

If you move the accrual date forward by 1 year, the “latest likely filing date” moves forward by 1 year. Conversely, if your accrual date is earlier (for example, because you’re using the first missed payment rather than the maturity/acceleration date), the latest filing date shrinks.

A small date shift can matter—especially close to the 6-year boundary.

Key exceptions

Colorado’s limitations rules include doctrines that can extend or adjust the timeline in certain situations. These issues are fact-specific, but they often come up in debt-collection and promissory note litigation.

1) Tolling based on certain legal circumstances

Colorado recognizes tolling concepts that can pause (or otherwise affect) when limitations begins or runs, depending on the circumstances. Common tolling categories in various jurisdictions include disability, certain legal impediments, or other statutorily recognized reasons. The exact application depends on the specific facts and statutory framework.

Calculator impact: Tolling generally can’t be modeled accurately without detailed legal facts and documentation, but it can be the reason the SOL outcome differs from a simple “start date + 6 years” calculation.

2) Partial payment or written acknowledgment

In many debt cases, partial payments or written acknowledgments can affect limitations analyses by supporting arguments that the clock should restart or be treated differently (depending on the governing Colorado law and the nature of the claim).

Calculator impact: If you input an accrual date without accounting for an acknowledgment/payment event that changes the effective accrual, the tool’s estimated latest filing date may be off.

3) Acceleration clauses

Many promissory notes include an acceleration clause allowing the lender to declare the entire balance due upon default. If the lender properly exercises acceleration, the “amount due” becomes due earlier than the original maturity date.

Calculator impact: Choosing the maturity date vs. the acceleration/default-trigger date can change the result by months or years.

4) Contract wording and claim theory

“Promissory note” disputes are not always identical in how they’re pleaded. Even with a written note, a lawsuit could be framed differently (e.g., breach of contract). Colorado’s limitations period tracks the type of action more than the label used.

Calculator impact: The calculator assumes a common pattern—typically a written contract action. If the claim theory differs, a different limitations period could apply.

Statute citation

Colorado’s statute of limitations for actions based on a written contract is 6 years under C.R.S. § 13-80-103(1)(a).

That means a lender generally must commence the lawsuit within six years after the cause of action accrues for a written-contract claim tied to a promissory note.

Use the calculator

Use DocketMath to estimate the latest likely filing date based on the key dates you supply.

Suggested inputs for a promissory note scenario

Check the boxes below to match your fact pattern, then input the corresponding dates in the tool.

Inputs that typically matter

• Accrual/default due date (required)
• (Optional) target filing date to test whether it falls within the limitations period
• (Optional) adjustments if the tool supports additional date concepts (for example, if it allows testing multiple accrual assumptions)

How outputs change with your dates

When you update the accrual/default due date:

• The latest likely filing date typically shifts by the same number of days you moved the accrual date.
• Near the 6-year mark, even a 30–60 day shift can flip the result from “likely within time” to “likely time-barred.”

To run your scenario now, open the tool 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 — Tool comparison
• Statute of limitations in Singapore: how to estimate the deadline — How-to guide
• Choosing the right statute of limitations tool for Connecticut — Tool comparison