The difference between a legal separation in Colorado versus a divorce is simple: both court cases resolve the same issues — dividing property and debt, setting child support and parenting time, and awarding spousal maintenance — but a legal separation leaves you legally married, while a divorce ends the marriage.1Colorado Judicial Branch. Divorce or Legal Separation That single distinction drives every real-world consequence that separates the two paths.
If you choose legal separation, you receive a Decree of Legal Separation that looks almost identical to a divorce decree. You get the same enforceable orders. You just can’t remarry, and your marital status for most legal purposes stays “married.”
The Core Difference
A divorce dissolves the marriage. A legal separation does not. Everything else follows from that.
Neither spouse can remarry while a legal separation is in effect. If either of you wants to marry someone else later, you’ll need to convert the separation to a divorce first. On the other hand, because you remain married, you keep access to benefits that depend on marital status — and those benefits are usually the whole reason people pick separation over divorce.
Why People Choose Separation Over Divorce
The reasons tend to cluster around benefits, beliefs, or buying time.
Health Insurance
Some employer-sponsored health plans allow a legally separated spouse to stay on the other spouse’s coverage, since the marriage hasn’t ended. This is not automatic. Plans vary, and some terminate spousal eligibility at the point of legal separation just as they would at divorce. Check the plan documents or call the administrator before you rely on it.
If the plan does drop coverage, federal law provides a backstop. Under COBRA, a legal separation is a qualifying event that lets the affected spouse continue coverage for up to 36 months, provided the employer has 20 or more employees and you notify the plan within 60 days.2Office of the Law Revision Counsel. 29 USC 1163 – Qualifying Event You pay the full premium plus a 2% administrative fee.
Social Security Spousal Benefits
This is where legal separation offers a genuine advantage over divorce. Because you’re still married, you remain eligible for spousal Social Security benefits based on your spouse’s earnings record — worth up to half of what your spouse qualifies for at full retirement age. The limitation is that your spouse must have already applied for Social Security before you can claim. Divorced spouses who were married at least 10 years don’t face that waiting restriction, but they also lose the married-spouse status entirely.
Military Benefits
If one spouse is active-duty, legal separation preserves all military dependent benefits — ID card, medical care at military treatment facilities, commissary and exchange access — until any divorce is finalized. Divorce generally terminates those benefits unless the former spouse qualifies under the Uniformed Services Former Spouse Protection Act, which has its own eligibility rules tied to the length of the marriage and the service member’s career.
Inheritance Rights
Unless the separation agreement says otherwise, a legally separated spouse may retain certain inheritance rights that a divorced spouse would lose.
Religion or a Trial Period
Some people have religious reasons for not wanting to divorce. Others want structured time apart, with real legal orders in place, before deciding whether to end the marriage. Legal separation accommodates both.
Where the Two Cases Look Identical
Everything the court decides inside the case is the same whether you file for divorce or legal separation.
Property and debt. Colorado follows equitable distribution, meaning the court divides marital property fairly rather than automatically 50/50. The statute weighs each spouse’s contribution to acquiring the property (including homemaking), the value of property set apart to each person, each spouse’s economic circumstances, and any change in the value of separate property during the marriage.3Justia. Colorado Code 14-10-113 – Disposition of Property Debts acquired during the marriage are divided the same way. Property owned before the marriage or received as a gift or inheritance is generally separate, but can lose that status if commingled.
Parenting. If you have minor children, the decree sets parenting time and decision-making responsibility. Both are decided under the best-interests-of-the-child standard, weighing factors like each parent’s wishes, the child’s relationships, and each parent’s willingness to support the child’s bond with the other parent.4Justia. Colorado Code 14-10-124 – Best Interests of Child
Child support. Calculated under the Colorado Child Support Guidelines, which use both parents’ combined income, the parenting time split, and adjustments for health insurance premiums and work-related childcare.5FindLaw. Colorado Code 14-10-115 – Child Support Guidelines
Spousal maintenance. Not automatic. The court decides whether one spouse needs support and the other can afford to pay, then applies advisory guidelines for marriages of at least three years where combined adjusted gross income doesn’t exceed $240,000 per year.6Justia. Colorado Code 14-10-114 – Spousal Maintenance For marriages over 20 years, the court can award maintenance indefinitely.
Tax Treatment Is Not a Difference
People often assume legal separation lets them keep filing jointly. It doesn’t. Once you have a final decree of legal separation (what the IRS calls a “decree of separate maintenance”), the IRS treats you as unmarried for the entire tax year.7Internal Revenue Service. Publication 504 (2025), Divorced or Separated Individuals Your filing options become single or, if you qualify, head of household — the same as after a divorce.
To qualify as head of household, you must have paid more than half the cost of keeping up your home for the year and had a qualifying dependent child live with you for more than half the year.8Internal Revenue Service. Filing Taxes After Divorce or Separation
For spousal maintenance under any agreement finalized after December 31, 2018, the payer cannot deduct the payments and the recipient doesn’t report them as income. That rule applies equally in a separation or a divorce.
The Mutual Agreement Catch
Legal separation is one of the few areas of Colorado family law that requires both spouses to want the same thing. If you file for legal separation and your spouse objects, the court must treat the case as a divorce instead.9Justia. Colorado Code 14-10-106 – Dissolution of Marriage – Legal Separation You cannot force a reluctant spouse to stay married on paper.
Filing Requirements Are the Same
Whichever route you choose, Colorado imposes the same three requirements before the court can enter a decree:
- Residency. At least one spouse must have lived in Colorado for a minimum of 91 days before filing.1Colorado Judicial Branch. Divorce or Legal Separation
- Grounds. The marriage must be “irretrievably broken.” Colorado is a no-fault state; neither case requires proving wrongdoing.
- Waiting period. At least 91 days must pass after the court gains jurisdiction over the respondent (through service or voluntary appearance) before a final decree can enter.9Justia. Colorado Code 14-10-106 – Dissolution of Marriage – Legal Separation
The filing fee is $230 for either petition.10Colorado Judicial Branch. JDF 1 – Court Filing Fees and Costs The same petition form, JDF 1101, is used for both. If you can’t afford the fee, you can ask the court to waive or defer it based on financial hardship.
Converting a Legal Separation to a Divorce
If circumstances change, either spouse can convert a legal separation into a divorce. The earliest you can file the motion is 182 days after the decree of legal separation was entered.11Justia. Colorado Code 14-10-120 – Decree of Legal Separation You file a motion and show that notice was mailed to your spouse at their last known address.
The court converts the decree without reopening property division, parenting plans, or maintenance. The existing agreement carries over. Only the marital status changes — the marriage ends, and both people become free to remarry. Only one spouse needs to want the conversion; the other’s consent is not required.
That one-way exit is worth understanding before you file. A legal separation can always become a divorce. A divorce cannot be undone. If the choice is close, that asymmetry often tips it.