Legal Separation vs Divorce in Colorado: What’s the Difference

When a marriage reaches a breaking point, most people assume divorce is the only legal path forward. But Colorado law gives married couples another option legal separation and it comes with its own set of consequences, protections, and trade-offs that are worth understanding before you make any decisions.

What surprises most people is that legal separation and divorce follow many of the same court procedures and address many of the same issues: property, debt, parenting, child support, and spousal maintenance. The difference isn’t primarily the process. It’s what the final decree says about your marriage.

Biondino Law Firm, we work with Denver-area clients navigating both options. This post breaks down exactly how legal separation and divorce differ in Colorado, what the process looks like for each, and how to think through which one actually fits your situation.

Legal separation is a formal court process not just a couple deciding to live apart. If you and your spouse have separated physically but haven’t filed anything with a court, you are not legally separated in Colorado. You’re just living apart.

A true legal separation results in a court-issued decree that covers all the same legal issues as a divorce: division of marital property and debt, spousal maintenance, allocation of parental responsibilities (what Colorado calls custody), and child support. After that decree is entered, you and your spouse lead completely separate financial and personal lives but you remain legally married.

This distinction matters more than most people realize. Because you’re still married, neither of you can remarry. You may retain inheritance rights. Certain financial and tax ties can remain in place. And if circumstances change, the legal separation can be converted to a divorce without starting over from scratch.

Legal separation in Colorado is governed by C.R.S. § 14-10-106, which applies equally to traditional marriages and common law marriages. Colorado treats both the same way when it comes to separation and dissolution proceedings.

Divorce formally called dissolution of marriage in Colorado is the legal process that permanently ends a marriage. Once a divorce decree is entered, both parties are legally single and free to remarry.

Like legal separation, divorce resolves all the major legal issues between spouses: property division, debt allocation, spousal maintenance, parenting plans, and child support. Colorado is a no-fault state, which means neither spouse has to prove the other did anything wrong. The only legal ground for divorce in Colorado is that the marriage is “irretrievably broken” and courts don’t question that finding.

Divorce applies to both traditional and common law marriages. If your marriage qualifies as a common law marriage under Colorado law, the process to end it is the same as any other marriage.

Before you can file for either legal separation or divorce in Colorado, at least one spouse must have lived in the state for a minimum of 91 days. That residency requirement is the same for both proceedings.

If you have minor children, there’s an additional requirement: the children must have lived in Colorado for at least six months before the court can make decisions about parenting and custody. The exception is for very young children if a child is under six months old, they only need to have lived in Colorado since birth.

These requirements apply equally to both legal separation and divorce cases.

Most of the confusion around these two options comes from assuming they’re more different than they actually are. Here’s a direct comparison of what changes depending on which path you take:

The Social Security angle is one that often gets overlooked. Divorced-spouse benefits have specific eligibility requirements, including a minimum ten-year marriage. If your marriage is approaching that mark, the timing of your filing could be worth discussing with a financial adviser before making decisions based on it.

This is where a lot of people get surprised. Legal separation and divorce are procedurally almost identical in Colorado.

Both require a petition filed with the appropriate district court. Both require full financial disclosure, sworn statements, pay stubs, tax returns, account records. If children are involved, both require a parenting plan that serves the best interests of the child. Child support in both cases is calculated under the same Colorado guidelines, based on income, overnights, and certain expenses. If the spouses can’t reach full agreement on their own, both require mediation before the case goes to trial.

One myth worth addressing directly: legal separation is not cheaper or faster than divorce. Because the legal steps are the same, the time and cost are comparable. If you’re considering legal separation primarily because you think it will be simpler or less expensive, that assumption is likely incorrect.

Whether you’re pursuing legal separation or divorce, the court process follows the same sequence. Here’s how it works:

Step 1 — File a Petition. One spouse (the petitioner) files a Petition for Legal Separation with the Colorado district court in the county where either spouse lives. If both spouses agree and want to file together, they can submit a joint petition, which streamlines the process.

Step 2 — Serve the Other Spouse. If the petition is not filed jointly, the other spouse (the respondent) must be formally served with a copy of the petition and a summons. A spouse living in Colorado has 21 days to respond; a spouse living out of state has 35 days.

Step 3 — Temporary Orders. While the case is pending, either party can ask the court to enter temporary orders covering urgent issues: who pays which bills, where the children live in the meantime, and whether temporary spousal or child support is appropriate. These can be entered by agreement or after a short hearing.

Step 4 — Financial Disclosure. Both spouses are required to complete sworn financial statements and exchange supporting documents. This is mandatory; it’s how the court ensures both parties have a full picture of the marital estate before any agreements are made.

Step 5 — Mediation. If the spouses can’t reach agreement on all issues through negotiation, Colorado requires mediation before the case goes to trial. A neutral mediator helps both sides work toward resolution outside the courtroom.

Step 6 — Final Hearing or Trial. If mediation doesn’t fully resolve the case, a judge hears the remaining issues and makes final decisions on property, support, and parenting.

Step 7 — Decree of Legal Separation. The court issues the decree, which is a binding court order covering all resolved issues. From this point, both spouses live separately with separate finances but remain legally married.

The divorce process follows substantially the same steps. The primary difference is what the final decree is called and what it means for your marital status.

Under C.R.S. § 14-10-106, if one spouse objects to a legal separation and requests a divorce, the court will generally grant the divorce. A spouse seeking dissolution cannot be held to a legal separation against their will.

If a legal separation petition has already been filed and the other spouse wants a divorce, they can file a motion to modify the petition (JDF form 1107), or wait until the decree is entered and then file to convert it (JDF form 1321) though conversion can only happen at least six months after the decree.

How this plays out depends on timing and where in the process the objection is raised, which is why getting an attorney involved early matters if spouses disagree on this.

Legal separation isn’t the right choice for everyone, but it makes sense in certain situations. Here are the most common reasons Colorado couples choose this path:

Health insurance. This is the most frequently cited reason. If one spouse is on the other’s employer-sponsored health plan, divorce typically ends that coverage as a qualifying life event. Legal separation may allow coverage to continue, depending on the plan’s specific rules. It’s worth confirming directly with the employer’s benefits department plan rules vary and are not dictated by the court.

Religious or moral beliefs. Some faiths prohibit or strongly discourage divorce. Legal separation allows spouses to live completely separate lives, divide their finances, and establish formal parenting arrangements while honoring religious convictions about the permanence of marriage.

Tax filing status. Federal tax filing status is governed by IRS rules, not Colorado family court. In some circumstances, legally separated spouses may still be treated as married for tax purposes but this depends on your specific situation. Speak with a tax professional before assuming legal separation preserves any particular filing benefit.

Inheritance rights. Legally separated spouses generally retain default inheritance rights under Colorado law; divorced spouses generally do not. Both outcomes can be affected by estate planning documents or marital agreements, so if this is a factor in your decision, discuss it with your attorney.

Immigration and visa status. Divorce can affect certain marriage-based immigration benefits, depending on visa category, petition status, and timing. If immigration status is a factor, consult an immigration attorney before making any decisions this area involves federal law that operates separately from Colorado family law.

Uncertainty or possible reconciliation. Some couples aren’t sure they want the permanence of divorce. Legal separation creates legal structure and breathing room without permanently closing the door.

For many couples, legal separation is not the right fit. Here’s when divorce is the cleaner answer:

You plan to remarry. This is the clearest reason. As long as a legal separation is in place, neither spouse can marry someone else. If remarriage is in your future, you’ll eventually need a divorce anyway and converting a separation adds another step and more time to that process.

You want a clean break. Some people need the emotional and legal finality of knowing the marriage is over. A legal separation keeps you legally tied to your spouse indefinitely, which can complicate new relationships and future financial decisions.

Legal separation doesn’t actually save you money. This is worth repeating because it’s a common misconception. The process is the same, which means the legal costs are comparable. Don’t choose legal separation expecting it to be cheaper in most cases, it isn’t.

Living with a new partner while legally separated can create complications. You remain legally married, and cohabiting with someone new may have legal or financial implications depending on your circumstances.

Converting later adds time. If you’re reasonably certain you won’t reconcile, going through legal separation first and then converting to divorce adds a mandatory six-month waiting period before the conversion can happen. If finality is the goal, starting with divorce is more direct.

If circumstances change after a legal separation decree is entered, either spouse can ask the court to convert it to a divorce. Here’s how that works:
You must wait at least six months from the date the decree of legal separation was entered before filing for conversion. After that window passes, either spouse can file a Motion to Convert Decree of Legal Separation to Decree of Dissolution of Marriage using JDF form 1321. Mutual agreement is not required; one spouse can file unilaterally.
In most cases, the financial and parenting terms established in the legal separation carry over into the divorce decree. If either party wants to modify those terms at the time of conversion, they would need to file the appropriate motions and demonstrate that a substantial change in circumstances has occurred.
Conversion is typically faster than starting a divorce from scratch the foundational work has already been done. But it still requires court involvement and carries its own timeline.

Annulment is a third legal option, but it applies in very limited circumstances and is not available to most couples. Unlike legal separation or divorce both of which acknowledge that a valid marriage existed, annulment is a legal declaration that the marriage was never valid in the first place.

In Colorado, grounds for annulment include fraud, duress, inability to consummate the marriage, lack of sufficient consent, or marriages entered as a prank or dare. If neither of those circumstances applies to your situation, annulment is not an option. Most couples ending a marriage will be looking at separation or divorce, not annulment.

Choosing between legal separation and divorce is not a decision to make based on assumptions, especially the assumption that one is simpler or cheaper than the other. In Colorado, both are serious legal processes with long-term financial and personal consequences.

The right path depends on your specific situation: your health insurance needs, your tax picture, whether you have children, your religious beliefs, and how certain you are that the marriage is over. If you’re weighing these options and need guidance from someone who understands Colorado family law, the attorneys at Biondino Law Firm are here to help.

Call us at (720) 706-5151 to speak with a Denver divorce and family law attorney about your situation.

Do you have to be legally separated before filing for divorce in Colorado? 

No. Colorado does not require any period of separation before you can file for divorce. Many couples file for divorce while still living under the same roof.

Do you have to live apart to file for legal separation in Colorado? 

No. You do not need to be physically living apart to file for legal separation. The separation is a legal status granted by the court not a requirement that you’ve already moved out.

Can you date while legally separated in Colorado? 

Yes. Colorado is a no-fault state, so dating while legally separated does not constitute a legal violation. However, you are still legally married you cannot remarry, and moving in with a new partner while separated may have practical implications depending on your situation.

Is legal separation cheaper than divorce in Colorado? 

No. The court process for legal separation and divorce is nearly identical, which means the time and legal costs are comparable. If you’re considering legal separation primarily to save money, that assumption is likely incorrect.

How long does legal separation take in Colorado? 

The timeline is comparable to divorce. There’s a minimum 91-day waiting period from the date the petition is served or jointly filed. Beyond that, the timeline depends on how quickly both parties reach agreements; cases can resolve in a few months or take well over a year if contested.

How long can you stay legally separated in Colorado? 

There is no time limit. A legal separation decree can remain in place indefinitely. It doesn’t automatically convert to a divorce. The separation continues until one spouse files to convert it or neither ever does.

Can one spouse force a legal separation if the other wants a divorce? 

Generally, no. Under C.R.S. § 14-10-106, if one spouse objects and requests a divorce, the court will grant the divorce. The procedural path depends on timing speak with an attorney early if you and your spouse disagree.

What happens to health insurance after a legal separation in Colorado? 

It depends entirely on the employer’s benefit plan. Some plans allow continued coverage for a legally separated spouse; others do not. Divorce typically triggers a qualifying life event that ends spousal coverage. Before making any decision based on health insurance, confirm the specific rules with the plan administrator directly.