Should I Consider Legal Separation Before Getting a Divorce?

 Posted on April 28, 2026 in Legal Separation

When a marriage is no longer working, divorce can feel like the only option. But for many couples, legal separation is worth understanding before making any final decisions. In 2026, Illinois law gives married couples the option to live apart, divide their finances and address custody issues, all without ending the marriage itself. 

Whether legal separation is right for you depends on your specific situation and what you want life to look like down the road. Our Arlington Heights family law attorney can help you decide whether legal separation makes sense for you. 

What Exactly Is Legal Separation in Illinois?

Legal separation is a Court-recognized arrangement that allows spouses to live apart while remaining legally married. Under 750 ILCS 5/402, either spouse may petition the Court for a legal separation. A Judge can then enter orders addressing many of the same issues as a divorce. This includes property and debt division, spousal support, the allocation of parental responsibilities and parenting time.

At least one spouse must be a resident of Illinois, and the spouses must no longer be presenting themselves as a married couple. A legal separation is not simply an agreement between spouses. If a couple wants to create an informal separation agreement they can, but legal separation is a formal legal process that results in binding Court orders.

What Is the Difference Between Legal Separation and Divorce?

The most important distinction is that legal separation does not end the marriage. After a divorce, the marriage is dissolved and both parties are free to remarry. After a legal separation, the couple is still legally married, even if they are living entirely separate lives.

This distinction matters in several practical ways. A legally separated spouse may still be eligible for health insurance coverage through the other spouse's employer plan. Social Security benefits tied to the length of a marriage are preserved. And for couples whose religious beliefs conflict with divorce, legal separation offers a way to establish independent lives without formally dissolving the marriage.

The Advantages of Legal Separation in Illinois

Legal separation offers several genuine benefits, depending on a couple's circumstances:

• Time and perspective: Living apart under a formal arrangement gives both spouses the space to reflect on whether the marriage can be saved without the permanence of divorce hanging over that process. 

• Keeping benefits: Staying legally married means continued access to health insurance, retirement benefits, and Social Security entitlements that depend on marital status. 

• Financial structure: A legal separation agreement puts formal Court orders in place for support and finances, which protects both spouses during the period of separation.

• Religious beliefs: For spouses whose faith does not recognize divorce, legal separation allows them to live independently while honoring their beliefs.

• A path to reconciliation: Some couples use the separation period to address underlying issues, sometimes with the help of counseling, and ultimately choose to remain married.

If one or more of these advantages appeals to you, you may want to consider legal separation. 

The Disadvantages of Legal Separation in Illinois

Legal separation is not the right choice for everyone, and the downsides deserve honest consideration:

• Incomplete financial separation: Even with a Court-ordered agreement dividing assets and debts, the spouses remain legally married. Financial decisions made by one spouse — taking on new debt, for example — can still create complications for the other.

• No freedom to remarry: A legally separated spouse cannot marry a new partner. That is only possible after a divorce is finalized.

• Added cost and time: If a couple goes through legal separation and later decides to divorce anyway, they will have gone through two separate legal processes, each with its own time, cost, and emotional difficulty. 

• Feeling stuck in limbo: For some spouses, remaining legally married while living apart prolongs uncertainty rather than providing clarity. A clean break through divorce may ultimately work better.

Thinking through the pros and cons can be difficult and take time, but waiting until you feel certain about your choice can save you significant time and heartache down the road. 

Can You Stay Legally Separated Forever in Illinois?

Illinois law does not require a legally separated couple to eventually divorce. A couple can stay legally separated forever if both parties choose to do so. The Court orders issued during the separation remain in effect for as long as the separation continues.

That said, either spouse has the right to file for divorce at any point. If one spouse files for divorce after a legal separation, the existing separation agreement may be referenced in the divorce proceedings, though a Judge will still need to enter a final judgment of dissolution that addresses all remaining issues under Illinois divorce law.

For couples who have no intention of divorcing, permanent legal separation is a legitimate and legally recognized arrangement in Illinois.

What Happens to Your Children During a Legal Separation?

A legal separation involving children requires the same level of attention to parenting issues as a divorce. The Court will enter orders addressing the allocation of parental responsibilities (major decision-making about a child's education, healthcare, and religious upbringing) as well as a parenting time schedule. Child support will also be determined based on the Illinois child support guidelines.

A Judge in a legal separation case applies the same standard used in divorce proceedings, which is to use whatever arrangement serves the best interests of the child. Informal agreements about your kids won’t be enough; having formal Court orders is a necessary part of legal separation, and having them protects both the parents and the children.

How Do You Know Whether Legal Separation or Divorce Is the Right Choice?

The answer depends on factors that are specific to your marriage, your finances and your long-term goals. Couples who want time apart to evaluate the marriage without permanently closing the door may find that legal separation provides the structure and breathing room they need. Couples who are certain the marriage is over, or who want the freedom to move forward with new relationships and potentially new marriages, are usually better served by divorce.

Talking through the details with a knowledgeable family law attorney is the most reliable way to understand which path makes sense for your situation.

Call an Arlington Heights, IL Legal Separation Attorney Today

Questions about legal separation or divorce deserve straightforward, honest answers. Our Mt. Prospect legal separation lawyer at The Law Office of Nicholas W. Richardson, P.C. has guided clients through these decisions for years and is ready to help you understand your options. Call 847.873.6741 for a free consultation.