In the realm of family law, annulment stands as a distinct legal concept, separate from divorce. While divorce terminates a valid marriage, an annulment declares a marriage null and void, as if it never existed in the first place. Colorado, like many other states, has specific grounds and procedures for obtaining an annulment. This article aims to shed light on what an annulment is, the grounds for seeking one in Colorado, and the legal implications involved.

What is an Annulment?

An annulment is a legal process that declares a marriage null and void. Unlike divorce, which acknowledges the existence of a valid marriage that is being terminated, an annulment treats the marriage as if it never happened. Essentially, an annulment retroactively voids the marriage, restoring both parties to their pre-marriage legal status.

Grounds for Annulment in Colorado

In Colorado, obtaining an annulment involves demonstrating that the marriage is void or voidable based on specific grounds. The grounds for annulment in the state can be broadly categorized into void and voidable marriages.

1. Void Marriages:

Certain marriages are considered void from the outset, meaning they are legally invalid, and no formal annulment procedure is required. The following scenarios constitute void marriages in Colorado:

a. Bigamy: If one of the parties is already married at the time of the second marriage, the subsequent marriage is void.

b. Incest: Marriages between close blood relatives, such as siblings or parents and children, are void in Colorado.c. Underage Marriage: If one or both parties were underage at the time of marriage and did not obtain the necessary legal consent, the marriage is void.

c. Underage Marriage: If one or both parties were underage at the time of marriage and did not obtain the necessary legal consent, the marriage is void.

2. Voidable Marriages:

Unlike void marriages, voidable marriages are considered valid until annulled. A voidable marriage may be annulled based on certain grounds, but it is not automatically void. Grounds for a voidable marriage in Colorado include:

a. Lack of Capacity: If one or both parties lacked the mental capacity to consent to the marriage, the court may consider the marriage voidable.

b. Fraud or Duress: If the consent to marriage was obtained through fraud or duress, the injured party may seek an annulment.

c. Impotence: If one party is unable to consummate the marriage, and the other party was unaware of this fact at the time of marriage, it may be considered a ground for annulment.

d. Lack of Consent: If one party entered into the marriage without genuine consent, perhaps due to intoxication or force, the marriage may be voidable.e.

e.Concealed Divorce: If one party concealed a previous divorce at the time of marriage, the other party may seek annulment.

Legal Implications of Annulment

While annulment erases the legal existence of a marriage, it does not absolve the parties from addressing issues such as property division, alimony, and child custody. The court may still need to make determinations on these matters, particularly if there are shared assets or children involved.

  1. Property Division: In Colorado, the court may still need to address the division of property acquired during the marriage. Even though the marriage is annulled, the court will ensure a fair and equitable distribution of assets and debts.
  2. Alimony: The issue of spousal support, or alimony, may also arise in annulment cases, especially if one party relied on the other for financial support during the marriage. The court will consider factors such as financial need and the duration of the marriage when determining alimony.
  3. Child Custody and Support: If the parties have children from the annulled marriage, the court will decide on matters of child custody, visitation, and support based on the best interests of the child.


Annulment in Colorado is a legal process that declares a marriage null and void, erasing it from legal existence. The grounds for annulment include void marriages, such as bigamy and incest, and voidable marriages, where issues like lack of capacity, fraud, or impotence come into play. While an annulment negates the marriage, legal issues such as property division, alimony, and child custody may still need to be addressed. It’s crucial for individuals seeking an annulment in Colorado to understand the specific grounds and navigate the legal process with the assistance of legal professionals to ensure a fair resolution.