Prenup in Colorado: Rules, Cost and Process Explained

What Are the Requirements for a Colorado Prenuptial Agreement?

A valid Colorado prenup must meet four requirements: it must be in a written record signed by both parties, both parties must consent voluntarily, each party must receive adequate financial disclosure, and each party must have access to independent legal representation. Miss any one of these, and a court can refuse to enforce the agreement.

Under C.R.S. § 14-2-306, the agreement must be "in a record and signed by both parties" and is enforceable without consideration. That last point matters: unlike many contracts, neither party needs to give something of value in exchange for the other's promises.

Here are the four pillars in more detail:

1. Written and signed. A verbal prenup is not enforceable. Both parties must sign the document.
2. Voluntary consent. Neither party can be coerced or pressured into signing. Consent obtained through duress makes the entire agreement vulnerable.
3. Adequate financial disclosure. Each party must share a fair picture of their assets, liabilities, and income before the agreement is executed.
4. Access to independent legal representation. Each party must have reasonable time to decide whether to hire a lawyer, find one, get advice, and consider that advice. Hiring a lawyer isn't technically mandatory, but access to one is.

A Colorado prenup becomes effective on marriage (C.R.S. § 14-2-307). If the wedding never happens, the agreement has no legal force.

How the Colorado Uniform Premarital and Marital Agreements Act Works

The UPMAA is the single statutory framework that governs both prenuptial and postnuptial agreements in Colorado. It replaced the earlier Uniform Premarital Agreement Act and applies to any agreement signed on or after July 1, 2014.

Codified at C.R.S. § 14-2-301 through § 14-2-313, the UPMAA brought stricter enforceability standards than the prior law. The biggest change was the independent-counsel access requirement: under the old framework, courts did not uniformly require that each party have a meaningful opportunity to consult a lawyer.

A few points to keep in mind:

• Agreements signed before July 1, 2014 are evaluated under the earlier standards. The UPMAA does not apply retroactively.
• The same rules apply to marital ([postnuptial) agreements](https://meetneptune.com/blog/what-is-a-postnuptial-agreement). Colorado's statute treats prenups and postnups under one consistent framework, with the same disclosure, voluntariness, and counsel-access requirements.
• Colorado is among a small number of states that have adopted the UPMAA. As of 2025, Colorado is one of only two states to have enacted this version of the uniform act, which generally imposes more detailed enforceability safeguards than the older UPAA adopted by roughly 29 states and Washington, D.C.
• Governing law. Under C.R.S. § 14-2-304, the parties can designate which state's law governs the agreement, provided that jurisdiction has a significant relationship to the agreement or either party and the designated law doesn't conflict with Colorado's public policy.

When a Colorado Prenup Is Unenforceable

A Colorado court will refuse to enforce a prenup if the party challenging it proves any of the grounds listed in C.R.S. § 14-2-309. The burden falls on the person seeking to set the agreement aside.

The four statutory grounds for unenforceability are:

Beyond these four grounds, a court can also decline to enforce terms it finds unconscionable. Unconscionability is decided on a case-by-case basis. A court might void the entire agreement or strike individual provisions that it considers grossly unfair.

The notice-of-waiver requirement deserves special attention. For an unrepresented party, the agreement must include language substantially similar to the statutory template, which warns that signing may mean giving up the right to spousal support, property ownership or control, money and property if the marriage ends or a spouse dies, or the right to avoid the other party's debts.

What a Colorado Prenup Can and Cannot Include

Colorado prenups can address most financial and property matters between spouses, but they cannot predetermine child-related issues.

Typically enforceable topics include:

• Classifying assets as separate or marital property
• Division of assets if the marriage ends
• Allocation of debts and liabilities
• Spousal maintenance (alimony) terms or waivers
• Treatment of a specific business, inheritance, or investment
• Rights to property upon the death of a spouse

Terms that are off-limits or unenforceable:

• Child custody arrangements. A court determines custody based on the child's best interests at the time, not based on a contract signed before the child was born.
• Child support provisions. Colorado law does not allow parents to waive or predetermine child support obligations.
• Restrictions on domestic-violence remedies. Under C.R.S. § 14-2-310, any term that limits or restricts a remedy available to a victim of domestic violence is unenforceable.
• Altering grounds for dissolution. The agreement cannot change the legal grounds for divorce or separation in Colorado.

As Michael C. Cotugno, Esq., Managing Partner of Neptune Legal, puts it: "Meticulously defining assets and debts within a premarital agreement is not a limitation on your love; it is, fundamentally, a profound act of liberation."

Is Colorado a Community Property State?

No. Colorado is an equitable distribution state, not a community property state. Under C.R.S. § 14-10-113, courts divide marital property in a manner that is fair, but not necessarily 50/50.

In a community property state, most assets acquired during marriage are automatically split equally. In Colorado, a judge considers factors like each spouse's financial situation, contributions to the marriage, and the economic circumstances at the time of division.

This distinction matters for prenup planning. Without an agreement, you're relying on a judge's interpretation of "equitable." A prenup lets you and your partner define your own terms for property division, debt allocation, and spousal maintenance. Instead of leaving outcomes to judicial discretion, you're making those decisions together while the relationship is strong and communication is open.

How Much Does a Prenup Cost in Colorado?

The average cost for drafting a prenuptial agreement in Colorado is approximately $930 in attorney fees, based on 32 attorney proposals surveyed as of March 2026. Add notary fees, and you're looking at a modest additional charge.

A few important distinctions:

• Per-attorney vs. couple total. The $930 figure represents a single attorney's fee. When both parties hire independent counsel (which strengthens enforceability), the combined cost will be higher.
• Complexity drives cost. Couples with straightforward finances will generally pay less than those with business interests, real estate in multiple states, or complex investment portfolios.
• Drafting vs. review. The attorney who drafts the agreement typically charges more than the attorney who reviews it for the other party.

These are market figures reflecting Colorado attorney pricing, not Neptune-specific quotes.

The Process of Getting a Prenup in Colorado

Getting a Colorado prenup involves more than filling in a template. Here's the typical path from first conversation to signed agreement.

1. Start the conversation early

Bring it up well before the wedding. Colorado law requires that each party have "reasonable time" to find a lawyer, get advice, and consider that advice before signing. Waiting until the week before the ceremony can create a duress argument that undermines enforceability.

2. Exchange full financial disclosure

Both parties share a complete picture of assets, liabilities, and income. This isn't optional. Incomplete or misleading disclosure is one of the most common reasons a prenup gets thrown out.

3. Each party consults independent counsel

Independent counsel for each partner is highly recommended for an enforceable prenup. Colorado doesn't strictly require both parties to hire attorneys, but if one party has a lawyer and the other doesn't, the agreement must include the statutory notice-of-waiver language. Having your own attorney dramatically reduces the risk of a future enforceability challenge.

4. Draft and review the agreement

One attorney typically drafts the initial agreement based on the couple's discussions. The other party's attorney reviews it, suggests revisions, and negotiations continue until both sides are satisfied.

5. Sign before the wedding

A prenuptial agreement must be signed before the marriage. It becomes effective on the date of the marriage, not on the signing date. Both signatures are required.

6. Notarize the document

While the UPMAA's text focuses on "a record signed by both parties," notarization is a standard practice that supports enforceability. Colorado's maximum notary fee is $15 per signature for in-person notarization, or $25 for remote notarization.

Where a lawyer-led process fits

A lawyer-led online prenup, like the service Neptune offers, gives each party independent representation. When both parties use Neptune-network lawyers, each partner works with their own attorney, and each client chooses their attorney. The process is handled online, but the legal work is real: attorneys draft, review, and finalize the agreement. This approach is particularly useful for couples who want qualified legal guidance without scheduling in-person appointments across busy calendars.