10 Montana Dissolution Mistakes to Avoid (2026)

Mistake #1 — Calling It "Divorce"

Montana's official term is "Dissolution of Marriage." Using "divorce" in court documents can cause confusion and may result in rejection or requests to amend.

Fix: Use "Dissolution of Marriage," "Petition for Dissolution," and "Final Decree of Dissolution" in all court documents — never "divorce."

Mistake #2 — Alleging Fault Grounds

Montana is a no-fault only state. Courts will not accept or consider fault grounds (adultery, cruelty, desertion, etc.) as grounds for dissolution. Trying to allege fault will not succeed.

Fix: The only ground is "irretrievable breakdown of the marriage." Use that — and only that — in the Petition.

Mistake #3 — Assuming Separate Property Is Completely Protected

Montana courts have broader authority to divide separate property than most states. Pre-marital property, gifts, and inheritances can be divided by a Montana court if equity requires.

Fix: Document all separate property carefully. Include an explicit separate property acknowledgment in the Separation Agreement to reduce the court's need to address it.

Mistake #4 — Not Recording the Deed at the County Clerk and Recorder

Deed changes must be recorded at the County Clerk and Recorder of the county where the property is located — not at the District Court.

Fix: After the Final Decree, record all Quitclaim Deeds at the Montana County Clerk and Recorder. Fee: ~$8–$15/page.

Mistake #5 — No Refinancing Deadline for the House

If one spouse keeps the house, the other remains on the mortgage until refinancing. Without a deadline, there is no enforcement mechanism.

Fix: Include a specific refinancing deadline (90–180 days) and a fallback sale provision in the Separation Agreement.

Mistake #6 — Skipping the QDRO for Retirement Plans

The Final Decree does not automatically transfer employer retirement benefits. A separate QDRO is required.

Fix: After the Final Decree, work with a QDRO specialist for private plans. For MPERA (Montana state employees), contact mpera.mt.gov for domestic relations order procedures.

Mistake #7 — Filing Before 90 Days of Residency

Filing the Petition before either spouse has lived in Montana for 90 days will result in dismissal for lack of residency.

Fix: Confirm the 90-day residency date before filing. If you're close, wait until the 90-day mark.

Mistake #8 — Omitting Maintenance From the Separation Agreement

Simply not mentioning maintenance in the Separation Agreement leaves the issue open. Courts may interpret silence differently than you intend.

Fix: Include an explicit maintenance provision — either an award with terms or an unambiguous waiver: "Each party waives any and all claims for maintenance, now and forever."

Mistake #9 — Not Addressing All Marital Debts

Creditors are not bound by your Separation Agreement. If your ex defaults on a joint debt you assigned to them, the creditor can still come after you.

Fix: List every marital debt in the Separation Agreement with creditor name, account number, balance, assignment, and indemnification language. Where possible, refinance joint debts into the responsible party's name.

Mistake #10 — Not Updating Beneficiary Designations

The Final Decree does not automatically change beneficiary designations on life insurance, retirement accounts, or payable-on-death accounts.

Fix: Update all beneficiary designations immediately after the Final Decree.

Last reviewed: March 2026 | "Dissolution of Marriage" — never "divorce" | No-fault ONLY — no fault grounds | Montana can divide separate property | County Clerk and Recorder for deed recording | Refinancing deadline essential | QDRO required | MPERA DRO | 90-day residency required | courts.mt.gov/Self_Help/Family_Law | montanalegal.org

Last reviewed: March 2026 · Verify current fees and forms with your local court before filing.