Divorcing in Colorado Near the End of the Year: What Timing Means for Your Taxes

Quick Summary

For federal income tax purposes, filing status generally turns on whether you are married on December 31. Colorado requires a minimum 91-day period after service before a divorce decree may enter, so a case beginning this fall generally will not be final by December 31 and many people will file their 2026 return as married. Year-end choices deserve attention now with both legal and tax professionals, especially when children, maintenance, retirement accounts, or a jointly filed return are involved.

Why December 31 Matters

When people begin the Colorado divorce process late in the year, they often assume that filing for divorce immediately changes their tax status. It does not. As a general federal rule, your marital status on December 31 controls whether you are treated as married for that entire tax year. If your divorce decree has not entered by then, you will generally be considered married for federal filing-status purposes.

Colorado's timeline is an important practical part of that conversation. There is a minimum 91-day waiting period after service of the petition and summons, or after a joint filing, before a decree can enter. Put simply, service after early October will ordinarily make a 2026 decree unavailable solely because of the waiting period. That is not a promise about any individual case. Agreements, financial disclosures, parenting issues, court availability, disputes over property, and many other circumstances can delay a decree further.

This is one reason I encourage clients to look at the calendar early. A divorce filing has legal consequences well before the case is final, but it may not change the return you file for the year in which it begins. At Pesch Law Office PC, I help clients think through the legal timing and the documents that will affect their financial transition, while being candid about the limits of my role. I am a family law attorney, not a tax advisor.

Married Filing Jointly vs. Separately While Your Case Is Pending

If you are still married on December 31, you may have a choice between filing a joint return and filing separate returns. A joint return can sometimes be administratively simpler or financially appealing, but it also requires trust and clear communication. Both spouses generally sign the return, and both may face responsibility for what is reported on it, including tax, interest, and penalties if there is an error or an unpaid balance.

That shared exposure is one reason some spouses consider filing separately during a pending dissolution of marriage. Separate filing may be worth discussing where one spouse has limited information about the other spouse's income, deductions, business activity, investments, or prior tax compliance. It can also be a practical choice when communication has broken down or when there are concerns about an incomplete or inaccurate return.

On the other hand, separate filing can carry different tax consequences and may affect eligibility for certain deductions, credits, or benefits. Those consequences depend on details that fall outside family-law advice. Before agreeing to a joint filing, allocating a refund, or deciding who will pay a balance due, confirm the plan with a CPA or other qualified tax professional. A written separation agreement can address cooperation on returns, sharing records, signing deadlines, refunds, and liabilities, but the agreement should be tailored to the facts of your case.

Even in an amicable Colorado divorce, it is wise to treat the tax return as a separate decision rather than an automatic final step. The same care is especially important in high-asset and business-owner matters, where income may not be straightforward. My role is to identify the family-law issues, help protect your position in the agreement, and coordinate with the professionals who handle the tax analysis.

Spousal Maintenance and Taxes After 2018

Spousal maintenance can be a central financial issue during divorce, particularly when spouses have significantly different incomes or one person has stepped back from employment during the marriage. Colorado courts evaluate maintenance under Colorado law, and the analysis is more nuanced than a simple formula. You can learn more about the legal framework for Colorado spousal maintenance on my website.

For federal tax purposes, an important rule changed several years ago. For divorce or separation instruments executed after December 31, 2018, spousal maintenance is generally not deductible by the payer and is generally not taxable income to the recipient. That differs from the treatment many people remember from older divorces, so assumptions based on a friend’s prior agreement can be misleading.

The tax treatment does not decide whether maintenance is appropriate, how much may be paid, or how long it may last. But it can affect how each person evaluates cash flow and settlement options. I work with clients to make sure proposed maintenance terms are considered alongside budgets, property division, child support where applicable, and the practical cost of establishing two households. For a full tax analysis, however, I recommend involving a qualified tax professional.

Dividing Retirement Accounts Without an Unexpected Tax Bill

Retirement savings are often among the largest assets in a marriage. They can include workplace plans, pensions, IRAs, deferred compensation, and other accounts with very different rules. In Colorado, the goal in property division is equitable division, which means fair under the circumstances, not necessarily a mechanical equal split of every account.

The method used to divide retirement assets matters. A structured, court-ordered transfer can allow a spouse to receive an appropriate share without treating the transfer itself like an ordinary taxable cash withdrawal. Depending on the account, this may require specialized language or a separate order, often called a qualified domestic relations order for certain employer-sponsored plans. A cash-out, by contrast, may create taxes and possible penalties that reduce the value available to both spouses.

I do not want clients to compare retirement balances only by the numbers on a statement. A dollar in a retirement account may not have the same practical value as a dollar in cash, home equity, or a brokerage account. Understanding how Colorado divides assets and debts helps frame the legal analysis, while a financial professional can help evaluate tax-sensitive settlement options. My financial planning tips for dividing marital property offer additional considerations to raise before an agreement is finalized.

Who Claims the Kids?

Parents commonly ask who gets to claim the children after separation. It is an understandable question, but it is not one that can be answered reliably by simply counting overnights or assuming that a parenting-time schedule controls every federal tax issue. Federal dependency and child-related tax rules are detailed, can change, and may involve requirements beyond what a Colorado parenting plan says.

Some separated parents may qualify for head-of-household treatment under detailed IRS rules, even while their divorce is pending. Whether that applies depends on the specific facts and federal requirements, so it is important to speak with a tax professional rather than rely on a general rule or an online calculator.

In a separation agreement or decree, I recommend addressing who may claim available child-related tax benefits, how parents will exchange any required forms or information, and what happens if a benefit is unavailable or a return is filed inconsistently with the agreement. The plan should be coordinated with the parenting arrangement and support terms, but it should not oversimplify a federal question. A CPA should confirm the current federal requirements before either parent files.

Year-End Steps Worth Taking Now

Late-year divorce planning is not about trying to force every decision before December 31. It is about avoiding preventable surprises and preserving information while it is still accessible. Start by gathering current records: recent pay information, prior tax returns, account statements, retirement-plan documents, mortgage and debt records, business records if relevant, and documents showing the source of separate or inherited assets.

Next, talk candidly about the practical decisions that cannot wait. Will you file jointly or separately if you remain married at year-end? Who will prepare the return? How will you review it before signing? How will a refund or payment be handled? If children are involved, what tax-related provisions need to be included in a temporary agreement or final settlement?

You should also be careful about changing beneficiaries, withdrawing funds, transferring assets, or taking on new debt without first getting legal advice. Once a Colorado case is filed and served, automatic temporary injunctions may restrict certain financial actions. The right next step depends on your circumstances, not a generic checklist.

Pesch Law Office PC serves clients throughout Colorado, including Denver, Boulder, Colorado Springs, Weld County, Adams County, and mountain communities through virtual consultations. Whether your case is likely to be uncontested or involves substantial disagreement, I can explain the legal timing, help you prepare for informed financial conversations, and guide you through the Colorado divorce process.

Divorce decisions can follow you for years. I coordinate with my clients and their financial professionals so that proposed agreements reflect the full picture, not just the issue immediately in front of us. To discuss your circumstances in a virtual consultation, call Pesch Law Office PC at (303) 567-7922.